PHP Tutorial For Beginners

Creating a Search Engine in PHP and MySQL Or Creating Search Form in PHP MySQL | PHP Tutorials for Beginners

Thu, 20 Jun 2013 10:49:00 +0000

In this tutorial of PHP Tutorial for Beginners we will show how to create "Search Engine in PHP with MySQL or how to create your Search Form in PHP by using MySQL".

What is Search Engine:-
Search Engine is a functionality where you enter your keywords or text in to search box, and it will give you all the record from database that matches your keyword.

In making Search Engine or Search Form you need to follow few steps:-
->Create a Database in phpmyadmin.
->Create a Table called "main_article" in the Database.
->In your table create fields called "article_entry_title" and enter some data in it which is used during search.
->Now create config.php which have database connection code.
->Last you have to create your script file for Search Engine.

Now create the config.php file and put the following code in it. This file we will include in our search engine script for database connectivity.
You can check the tutorial here for Database connection in Php MySQL.

<?php
$database = "Php_Tutorial"; // the name of the database.
$server = "localhost"; // server to connect to.
$db_user = "root"; // mysql username to access the database with.
$db_pass = ""; // mysql password to access the database with.
$table = "users"; // the table that this script will set up and use.
$link = mysql_connect($server, $db_user, $db_pass);
mysql_select_db($database,$link);
?>

Here is final script that will create your Search Engine page. Create search.php file and past the below code in it.

<html>
<head>
<title>Creating Search Engine page in php using mysql</title>
</head>
<body>
<form name="php search" action="<?php $_SERVER['PHP_SELF'] ?>" method="POST">
<label>Enter Search Keyword:</label><input type="text" name="search_keyword">
<input type="submit" value="Search">
</form>
</body>
</html>

<?php
require 'config.php';
//included database connection file

if (isset($_POST['search_keyword']) && !empty($_POST['search_keyword']))
//Here we are checking Keyword is entered or not.
{
$keyword = $_POST['search_keyword'];
if(!empty($keyword))
{
$query ="SELECT * FROM main_article WHERE article_entry_title LIKE '%".mysql_real_escape_string($keyword)."%'";

$query_result = mysql_query($query);

$total_rows = mysql_num_rows($query_result);
// We got the number of rows for matched keyword search

if($total_rows>0)
{
echo '<b>Total '.$total_rows.' records found for your searched keyword:<br></b>';
$i=1;
While($query_row = mysql_fetch_array($query_result))
{
echo $i.'-'.$query_row['article_entry_title'].'<br>';
//Displaying each result line by line.
$i++;
}
}
else
{
echo'No result found for your search query.';
}
}
}
else
{
echo '<b>Please enter Keyword to search</b>';
}
?>

Your PHP Search Engine is now ready to use. Almost all user use the search engine in their website to easily search for the product which user require. You can modify it and use this search engine code in admin panel of your project for finding perticular entries.

Hope this php tutorial is useful for you. Keep following Php Tutorial for Beginners for more Codes.

Encrypting Password using md5() function | PHP Tutorial for Beginners

Wed, 19 Jun 2013 11:15:00 +0000

MD5():-
The MD5 message-digest algorithm is a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value. MD5 has been utilized in a wide variety of security applications, and is also commonly used to check data integrity.

In our case it calculet the md5 hash of given string. With the use of md5() you can make your login system more secure.

Here is the Syntax of MD5():-
$user_password="987654";
echo md5($user_password);

Output :- 6c44e5cd17f0019c64b042e4a745412a
It encrypt the string which we have provided.

Example - Login Page

This is example of login page with encrypted password. You have also encrypt password during signup process else user will not able to login.

$user_name=$_POST['user_name'];
$user_password=$_POST['user_password'];

// encrypting password
$encrypted_password=md5($user_password);
$sql="SELECT * FROM $user_details WHERE username='$user_name' and password='$encrypted_password'";
$result=mysql_query($sql);

Hope this php tutorial is useful for you. Keep following Php Tutorial for Beginners for more help.

jQuery show() and hide() Function | PHP Code for Beginners

Mon, 10 Jun 2013 12:16:00 +0000

In this tutorial of php code for beginners we will show you how to use jquery show() and hide() functions.
jQuery show() and hide() are the most common used functions. They are used to show or hide perticular element in the page.

show() – Display the matched elements.
hide() – Hide the matched elements.

<html>

<head>

div{

padding:8px;

margin:10px;

border:1px solid blue;

width:450px;

height:50px;

background-color:blue;

color:white;

}

</style>

</head>

<body>

<h1>jQuery show() and hide() example</h1>

<div>This is jquery show() and hide() example</div>

$("#show_box").click(function () {

$("div").show('fast');

});

$("#hide_box").click(function () {

$("div").hide('slow');

});

$("#reset").click(function(){

location.reload();

});

</script>

</body>

</html>

Hope this php tutorial is useful for you. Keep following Php Tutorials for Beginners for more help.

Preventing SQL Injection | PHP Code For Beginners

Sun, 09 Jun 2013 06:47:00 +0000

If you are spent any serious time developing Web Application, you know the risk of SQL injection. Sql injection is caused when data is inserted into database that hasn’t been properly sanitized. For example, a simple demonstration of SQL injection would be an exploit that give a malicious person administration access to your site.

Say you have an HTML form that requires a username and password. Each of these form fields are named “user” and “pass”, respectively. On backend, the authentication mechanism checks the username and password against the database like this:

SELECT * FROM usertable WHERE username = ‘$user’ AND password = ‘$pass’;

If form data is unsanitized but the user actually inputs proper username and password, then the SQL query works and authentication is granted. However, if someone enters a more malicious string, they can wreak havoc on your system. For example, if user entered a username of user ’OR 1=1;-- and any password then SQL will also be valid and will give the user access to the protected system. The query would actually be run is shown here:

SELECT * FROM usertable WHERE username = ‘user’ OR 1=1;--random password

To understand the practical danger in this query, you have to understand that two dashes (--) is equivalent to the comment. Everything after he – is ignored by MySQL so it doesn’t matter if invalid password is provided. Also, because you haven’t “escaped” the single quote in the username, the single quote becomes the “end” of the value being checked against the username field. Though this is properly invalid as well, it doesn’t matter because the attack adds an OR 1=1 (which is always true) into the query. The query read, “Retrieve the record from usertable where username is ‘user’ or 1=1.” Because 1 is always equals to 1, the SQL always evaluates as true and attacker can access the protected resources or application.

To prevent against a possible SQL injection attack, the WordPress database class provides the $wpdb->prepare () method. It handles data sanitization of SQL statements to prevent against SQL injection,as show in below example. Note that instead of using %d to indicate a numerical replacement, you could use %1$d syntax to indicate, “replace this placeholder with the first replacement value in the format of a number.”

Using the prepare () method to sanitize SQL against SQL Injection attacks.

$sanitized_sql = $wpdb->prepare (“’INSERT INTO my_plugin_table SET field1 = %1$d, field2 = %2$s, field3 = %3$s’, 13, ‘Php code’, ‘Wordpress’);

$wpdb->query ($sanitized_sql);

Reading extension of uploaded file in php | PHP Tutorials for Beginners

Tue, 16 Apr 2013 09:32:00 +0000

In this tutorial of php code for beginners we will show you how to fetch or read the extension of currently uploaded file.
There are two simple way to read the extension of file, one is by using the php string function and another is by user of fileinfo() function. Following example will show you the both way to read the extension of file.

1) $file_extension = strtolower(substr(strrchr($FILES['image']['name'],"."),1));

2) $file_extension = pathinfo($_FILES['image']['name'], PATHINFO_EXTENSION);

By use of any of above code you will be able to read or get the extention any file.

Hope this php tutorial is useful for you. Keep following Php Tutorials for Beginners for more help.

File Download Script in Php | PHP Tutorials for Beginners

Tue, 16 Apr 2013 05:46:00 +0000

In this tutorial of php code for beginners we will show you how to download any files from web server to local machine. When you want to download any file you need to send the file name to this application.

Step 1:-
Create index.html or any name for file and put the code in it. This is the html cede in which download link to the file is available. In download link pass the file name as query string. In bellow code "download.php" is the file where file downloading code is present. We are passing the file name of corresponding file which is to be downloaded.

<html>
<head>
<title>File download in php</title>
</head>
<body>
<table>
<tr><td><a href="download.php?file=download_file_in_php.jpg" class="links">Download file in php</a></td></tr>
<tr><td><a href="download.php?file=file_download.pdf" class="links">Download pdf</a></td></tr>
</table>
</body>
</html>

Step 2:-
Copy this code in a file and save it as "download.php". In above step when we click on link it will call the download.php file which is bellow. The bellow code recieve the file name which was sent in query string and process for downloading it.

<?php
set_time_limit(0);

//path to the file.
//Your file should be in this folder only.
$file_path='files/'.$_REQUEST['file'];

//Call the download function with file path,file name and file type
download_file($file_path, ''.$_REQUEST['file'].'', 'text/plain');

function download_file($file, $name, $mime_type='')
{
if(!is_readable($file)) die('File not found.');

$size = filesize($file);
$name = rawurldecode($name);

$known_mime_types=array(
"pdf" => "application/pdf",
"txt" => "text/plain",
"html" => "text/html",
"htm" => "text/html",
"exe" => "application/octet-stream",
"zip" => "application/zip",
"doc" => "application/msword",
"xls" => "application/vnd.ms-excel",
"ppt" => "application/vnd.ms-powerpoint",
"gif" => "image/gif",
"png" => "image/png",
"jpeg"=> "image/jpg",
"jpg" => "image/jpg",
"php" => "text/plain"
);

if($mime_type==''){
$file_extension = strtolower(substr(strrchr($file,"."),1));
if(array_key_exists($file_extension, $known_mime_types)){
$mime_type=$known_mime_types[$file_extension];
} else {
$mime_type="application/force-download";
};
};

@ob_end_clean();

// required for IE, otherwise Content-Disposition may be ignored
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');

header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; file="'.$name.'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');
header("Cache-control: private");
header('Pragma: private');
readfile($file);
}
?>

Hope this php tutorial is useful for you. Keep following Php Tutorials for Beginners for more help.

Resize Image or Crop image Using GD Library in Php | PHP Tutorials for Beginners

Mon, 15 Apr 2013 13:17:00 +0000

Image resize or image cropping is one of the important part during any website building. To make our uploaded image fix exactly in same diamention in front end we need to resize or crop that image.
In this tutorial of Php code for beginners we will show you the example of code which resize the uploaded image using GD library.

This is the html code for uploading the image for resizing. After selecting image you will click on submit button. When submit button will click our next code will check for image and prosess them accordingly.

<html>
<head>
<title>Resize image in php</title>
</head>
<body>
<form name = "form" action = "<?php echo $_SERVER['PHP_SELF']; ?>" method = "POST" enctype="multipart/form-data">
<table>
<tr>
<td><label>Insert Image to resize:-</label></td>
<td><input type = "file" name = "file" id = "file"></td>
</tr>
<tr>
<td colspan = 2>
<input type = "submit" value = "submit" name = "submit">
</td>
</tr>
</table>
</form>
</body>
</html>

Now when you click on submit our php code check whether submit button is clicked or not? As soon as he find submit is clicked the following code run to prosses the image for resizing.

<?php
if(isset($_POST['submit'])){
$error = 0;
$uploadfile = 'images/'.basename($_FILES['file']['name']);
// $uploadfile is directory name where original image will save. You can unlink it after resizing the image.

$resize = 'resize/';
//It is you resize image directory.

$file_name = basename($_FILES['file']['name']);
$filecheck = basename($_FILES['file']['name']);
$ext = strtolower(substr($filecheck, strrpos($filecheck, '.') + 1));
if (!(($ext == "jpg" || $ext == "gif" || $ext == "png") && ($_FILES["file"]["type"] == "image/jpeg" || $_FILES["file"]["type"] == "image/gif" || $_FILES["file"]["type"] == "image/png") && ($_FILES["file"]["size"] < 2120000))){
echo "File Not Supported";
$error = 1;
die();
}
// In above code we are checking the type and size of image. If it is not image file the error messege will appear.

if($_FILES['file']['name']!="")
{
ini_set('memory_limit','32M');
//Here we set the memory limit.

if (!move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile))
{
echo $message= "Error in uploading a file due to the size of image.\n";
$error = 1;
}
else
{
$info = pathinfo($uploadfile);
$img = imagecreatefromjpeg( $uploadfile );
$width = imagesx( $img );
$height = imagesy( $img );
$new_width = 100; //New Width for Image.
$new_height = 100; //New Height for Image
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
imagejpeg( $tmp_img, "{$resize}{$file_name}" );
// All processing is done and your resized image will store from temporary directory to your resize image directory
}
}
if($error==0)
{
echo "Image Uploaded Successfully.";
exit;
}
}
?>

Here is the Complete code for you to resize you image according to the height width set by you.

<?php
if(isset($_POST['submit'])){
$error = 0;
$uploadfile = 'images/'.basename($_FILES['file']['name']);
$resize = 'resize/';
$file_name = basename($_FILES['file']['name']);
$filecheck = basename($_FILES['file']['name']);
$ext = strtolower(substr($filecheck, strrpos($filecheck, '.') + 1));
if (!(($ext == "jpg" || $ext == "gif" || $ext == "png") && ($_FILES["file"]["type"] == "image/jpeg" || $_FILES["file"]["type"] == "image/gif" || $_FILES["file"]["type"] == "image/png") && ($_FILES["file"]["size"] < 2120000))){
echo "File Not Supported";
$error = 1;
die();
}

if($_FILES['file']['name']!="")
{
ini_set('memory_limit','32M');

if (!move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile))
{
echo $message= "Error in uploading a file due to the size of image.\n";
$error = 1;
}
else
{
$info = pathinfo($uploadfile);
$img = imagecreatefromjpeg( $uploadfile );
$width = imagesx( $img );
$height = imagesy( $img );
$new_width = 100;
$new_height = 100;
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
imagejpeg( $tmp_img, "{$resize}{$file_name}" );
}
}
if($error==0)
{
echo "Image Uploaded Successfully.";
exit;
}
}
?>
<html>
<head>
<title>Resize image in php</title>
</head>
<body>
<form name = "form" action = "<?php echo $_SERVER['PHP_SELF']; ?>" method = "POST" enctype="multipart/form-data">
<table>
<tr>
<td><label>Insert Image to resize:-</label></td>
<td><input type = "file" name = "file" id = "file"></td>
</tr>
<tr>
<td colspan = 2>
<input type = "submit" value = "submit" name = "submit">
</td>
</tr>
</table>
</form>
</body>
</html>

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Character Count in Jquery | PHP Tutorials for Beginners

Wed, 03 Apr 2013 13:33:00 +0000

In this tutorial of php code for beginners we will show you example how to count character of text field using jquery.

<html>
<head>
<script src="http://code.jquery.com/jquery-1.5.js"></script>
<script>
function countCharacter(input) {
var len = input.value.length;
$('#charcount').text('Character Count :- '+len);
}
</script>
</head>
<body>
<textarea id="desc" onkeyup="countCharacter(this)"></textarea>
<div id="charcount"></div>
</body>
</html>

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Access Another Database in WordPress Or Get Data of Another Database in WordPress

Fri, 22 Mar 2013 17:23:00 +0000

In wordpress we usually use the database which we have configured in "wp-config" file and access them using global $wpdb variable. But when situation arise and we require to get data from another database then $wpdb variable will not work.

In this tutorial of php code for beginners we will show you how to access another database or fetch data from another database in WordPress.

To access another database first step is to write down the following code in your theme's function.php file or respective plugin file.

$mydb = new wpdb($DB_USER, $DB_PASSWORD, $DB_NAME, $DB_HOST);
$mydb->show_errors();

In above step you have created a variable called "$mydb". Now with the use of this variable you can access the data of your database specified above in any file.

Example:-

<?php
global $mydb; // Don't forget to initialize this
$sql="SELECT * FROM customer";
$result = $newdb->get_results($sql);
foreach($result as $cust_record)
{
echo $cust_record->name;
}
?>

Delete Multiple Records Using Checkboxes in Php | PHP Tutorials for beginners

Thu, 21 Mar 2013 08:19:00 +0000

In this tutorial of php code for beginners we will show you how to delete multiple records using checkboxes.

<script type="text/javascript" src="jquery.js"></script>
<script>
jQuery(function($) {
$("form input[id='check_all']").click(function() { // triggred check

var inputs = $("form input[type='checkbox']"); // get the checkbox

for(var i = 0; i < inputs.length; i++) { // count input tag in the form
var type = inputs[i].getAttribute("type"); // get the type attribute
if(type == "checkbox") {
if(this.checked) {
inputs[i].checked = true; // checked
} else {
inputs[i].checked = false; // unchecked
}
}
}
});

$("form input[id='delete']").click(function() { // triggred submit

var count_checked = $("[name='checkbox[]']:checked").length; // count the checked
if(count_checked == 0) {
alert("Please select a product(s) to delete.");
return false;
}
if(count_checked == 1) {
return confirm("Are you sure you want to delete these product?");
} else {
return confirm("Are you sure you want to delete these products?");
}
});
}); // jquery end

</script>
<?php
$host="localhost";
$username="root";
$password="";
$db_name="practice";
$tbl_name="test";

mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);

$count=mysql_num_rows($result);
?>

<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr>
<td><form name="form1" method="post" action="">
<table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td> </td>
<td><strong>Delete multiple rows in mysql</strong> </td>
</tr>
<tr>
<td>Check All <input type="checkbox" id="check_all" value=""></td>
<td><strong>Id</strong></td>
<td><strong>Name</strong></td>
<td><strong>Lastname</strong></td>
<td><strong>Email</strong></td>

</tr>

<?php
while($rows=mysql_fetch_array($result)){
?>

<tr>
<td><input name="checkbox[]" type="checkbox" id="checkbox[]" value="<? echo $rows['id']; ?>"></td>
<td><? echo $rows['id']; ?></td>
<td><? echo $rows['name']; ?></td>
<td><? echo $rows['lastname']; ?></td>
<td><? echo $rows['email']; ?></td>
</tr>

<?php
}
?>

<tr>
<td><input name="delete" type="submit" id="delete" value="Delete"></td>
</tr>

<?php

// Check if delete button active, start this
if(isset($_POST['delete'])){
for($i=0;$i<count($_POST['checkbox']);$i++){
$del_id=$_POST['checkbox'][$i];
$sql = "DELETE FROM $tbl_name WHERE id='$del_id'";
$result = mysql_query($sql);
}
// if successful redirect to delete_multiple.php
if($result){
echo "<meta http-equiv=\"refresh\" content=\"0;URL=delete_multiple.php\">";
}
}
mysql_close();
?>

</table>
</form>
</td>
</tr>
</table>

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more examples.

Inserting Data to Custom Table in WordPress | PHP Tutorials for Beginners

Tue, 12 Mar 2013 11:45:00 +0000

In this tutorial of php code for beginners we will show you how to insert data to custom table in WordPress

We are using different table of WordPress to fetch or store data. But some time during customization we need to create our own table in our WordPress database and store or fetch data from it.
For WordPress expert it very simple thing but for beginners it took time to R&d on this. So I thought make it simple and show you the simple step to add your data in your custom table of WordPress.

<?php
global $wpdb;
$wpdb->my_custom_table = 'my_custom_table';
$query = $wpdb->prepare("
INSERT INTO $wpdb->my_custom_table
(id, name, date)
VALUES ('','Neel','$date')
");
$results = $wpdb->query($query);
?>

Hope this php tutorial is useful for you. Keep following PHP Tutorials for Beginners for more help.

Define Constants in Php | PHP Tutorials for Beginners

Thu, 07 Mar 2013 10:15:00 +0000

What is Constant:-
A constant is an identifier for a any value. Constant is case-sensitiv and constant identifiers are always uppercase. A constant name always starts with a letter or underscore. A constant value cannot change during the execution of the script. If we have defined a constant, it can never be changed.

How to define Constant:-
To define a constant we have to use define() function and to retrieve the value of a constant, we have to use its name. Unlike variables constants do not have $ sign.

<?php
define("PAGE_TITLE", "PHP Tutorials for Beginners");
define("DESC", "Php constant tutorial example");

echo PAGE_TITLE; // Output:- PHP Tutorials for Beginners
echo DESC; // Output:- Php constant tutorial example
?>

Differences between constants and variables are:-
There is no need to write a dollar sign ($) before a constant, where as in Variable one has to write a dollar sign.
Constants cannot be defined by simple assignment, they may only be defined using the define() function.
Constants may be defined and accessed anywhere without regard to variable scoping rules.
Once the Constants have been set, may not be redefined or undefined.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more examples.

Showing the Posts of Perticular Category in WordPress | PHP Tutorials for Beginners

Thu, 07 Mar 2013 07:00:00 +0000

In this tutorial of php code for beginners we will show you how to show the posts of perticular category in WordPress

The below code will show only posts of category id 1.

<ul>
<?php
global $post;
$args = array('category' => 1); //specify category ID
$selectedposts = get_posts( $args );
foreach( $selectedposts as $post ) : setup_postdata($post); ?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; wp_reset_postdata(); ?>
</ul>

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Remove Default Canonical Tag from WordPress Pages or Posts | PHP Tutorials for Beginners

Thu, 07 Mar 2013 05:18:00 +0000

In this tutorial of php code for beginners we will show you how to remove the in built canonical tag from WordPress pages or posts.

Whenever we create any post in WordPress and publish it, WordPress automatically create the canonical tag for that url. The canonical tag src show the same url which you have created for that post. You can check this from the source code of the page.
If you don't want WordPress to create the canonical tag and want to use some other canonical tag from any plugin then you need to do this small changes in your WordPress "function.php" file.

Just put the below code in your function.php file and you problem is solved.

remove_action(‘wp_head’, ‘rel_canonical’);

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Create Your Own Captcha in Php or Create Feedback Form with Captcha | PHP Tutorials for Beginners

Wed, 06 Mar 2013 10:50:00 +0000

In this tutorial of php code for beginners we will see how to create your own capcha for your feedback, registration or any other form.

Step 1:- Create captcha.php file and add the below code in it.
Note: Create a fonts folder in your root directory and add "arial.ttf" file. You can find arial.ttf in you system's font folder.

<?php
session_start();
$string = '';
for ($i = 0; $i < 5; $i++) {
$string .= chr(rand(97, 122));
}
$_SESSION['captcha'] = $string;

$font_path = 'fonts/';

$captcha_image = imagecreatetruecolor(150, 60);
$text_color = imagecolorallocate($captcha_image, 200, 100, 90); // red
$bg_color = imagecolorallocate($captcha_image, 255, 255, 255);

imagefilledrectangle($captcha_image,0,0,399,99,$bg_color);
imagettftext ($captcha_image, 30, 0, 10, 40, $text_color, $font_path."arial.ttf", $_SESSION['captcha']);

header("Content-type: image/png");
imagepng($captcha_image);
?>

Step 2:- Now create feedback.php and past the following code in it.

<?php
session_start();
if(isset($_POST['submit'])) {
if(!empty($_POST['name']) && !empty($_POST['email']) && !empty($_POST['message']) && !empty($_POST['code'])) {
if($_POST['code'] == $_SESSION['captcha']) {
// send email to admin
$accept = "Thank you for your feedback.";
} else {
$error = "Please check that you have entered proper security code.";
}
} else {
$error = "Please enter all details.";
}
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Feedback Form</title>
<style>
.error {
color:red;
}
.accept {
color:green;
}
</style>
</head>
<body>
<?php if(!empty($error)) echo '<div class="error">'.$error.'</div>'; ?>
<?php if(!empty($accept)) echo '<div class="accept">'.$accept.'</div>'; ?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<table>

<tr>
<td colspan="2" align='center'><b>Feedback Form</b></td>
</tr>

<tr>
<td>Enter Your Name:</td>
<td><input type="text" name="name" /></td>
</tr>

<tr>
<td>Enter Your Email ID:</td>
<td><input type="text" name="email" /></td>
</tr>

<tr>
<td>Feedback:</td>
<td><textarea name="message"></textarea></td>
</tr>

<tr>
<td></td>
<td><img src="captcha.php"/></td>
</tr>

<tr>
<td>Enter Security Code:</td>
<td><input type="text" name="code" /></td>
</tr>

<tr>
<td><input type="submit" name="submit" value="Submit" class="button" /></td>
<td></td>
</tr>
</table>
</form>

</body>
</html>

Now you feedback form with your own captcha is ready to use.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

PHP Redirect(301 Permanent and 302 temporary redirect) or header() Function in php | PHP Tutorial for Beginners

Thu, 21 Feb 2013 05:21:00 +0000

In this tutorial of php code for beginners we will see how to use php redirection function like 301 temporary redirect and 302 permanent redirect.

Some time we want to redirect user to specific page when certain condition are true or false. At this time our php allow you to use his function called header() to redirect the user appropriate location. Simple example to use redirect is in any login form. If username and password are correct then redirect user to this dashboard else redirect him again to login form.

PHP Redirect Code

<?php
header("HTTP/1.1 301 Moved Permanently");
header("Location: http://www.phpredirecttutorial.com");
?>

It is 301 permanent redirect, because we have used "header("HTTP/1.1 301 Moved Permanently")". If you want to use 302 temporary redirect simply skip this line and write below code.

<?php
header("Location: http://www.phpredirecttutoriale.com");
?>

NOTE:- This would result in a "302 Moved Temporarily" redirect instead of a 301 one. This should be avoided as permanent redirects are more search engine friendly and should be used where possible.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

PHP trim() Function | PHP Tutorials for Beginners

Tue, 19 Feb 2013 10:43:00 +0000

In this tutorial of php code for beginners we will show you trim function in php.

trim():
Php trim() removes the extra white space from the string.

Example Without trim function:-

<?php
echo "#"." Php trim function "."#";
?>

Output:-
# Php trim function #

Example With trim function:-

<?php
echo "#".trim(" Php trim function ")."#";
?>

Output:-
#Php trim function#

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

PHP Session Example and PHP Session Tutorial | PHP Tutorials For beginners

Tue, 19 Feb 2013 07:24:00 +0000

In this tutorial of php code for beginners we will see how to use php session and give you proper php session tutorial.

What is php session:-

In normal HTML web site the boundary of data is limited that is we can not transfer data from one page to another. But in some cases we require to pass our data to another page like login form or shopping cart websites. In this situation php session help us to transfer the data. The data is user information which is store on server for later use. This information is temporary and it will be deleted when browser is closed.

A Session variable is used to store the information of user. We can store any information required for user in session.

Sessions work by creating a unique identification number for each visitor and storing variables based on this ID. This helps to prevent two users' data from getting confused with one another when visiting the same webpage.

Syntax of session is:- $_SESSION['variable_name'].

How to start php session:-

We can to use session directly and store the user information. First we need to start the session. To start session we have to write session_start() at the beginning of our code, before any HTML or text.

Before you can begin storing user information in your PHP session, you must first start the session. When you start a session, it must be at the very beginning of your code, before any HTML or text is sent.

Here is the example of how to start the session.

<?php
session_start(); // starting our PHP session!
?>

Storing data in a session variable:-

When we want to store user information in session the we have to use $_SESSION. $_SESSION is an associative array. In this all information are stored and retried.

Example:-

<?php
session_start();
$_SESSION['topic'] = "PHP Session example."; // storing session data
echo $_SESSION['topic']; //retrieving session data
?>

Output:-
PHP Session example.

In this example we learned how to store a variable to the session associative array $_SESSION and also how to retrieve data from that same array.

This example show you how to count the number of time user came in perticular page.

<?php
session_start();
($_SESSION['number']) ? $_SESSION['number']++ : $_SESSION['number'] = 1;
?>
This is your <?php echo( $_SESSION['number'] ); ?> time in this page.

Destroying session data:-

Php session data are temporary and will be deleted when we leave page or browser. But in some situation we need to clear user information as soon as task is completed. At this situation we use php function to destroy session.

Example:-

<?php
session_start();
if(isset($_SESSION['topic'])){
unset($_SESSION['topic']);
}
?>

To completely destroy the session you can call the session_destroy function.

Example:-

<?php
session_start();
session_destroy();
?>

This session_destroy() will completely remove the session.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

PHP Implode and PHP Explode Function | PHP Tutorial for Beginners

Wed, 06 Feb 2013 11:16:00 +0000

In this tutorial of php code for beginners we will see how to use php explode and implode function.

PHP explode() Function:-
Php explode function is used to break a string into an array. We specify the parameter which is used in breaking the string.

Syntax of explode function is as follow:-
explode(Separator,String)
where 'Separator' specify the position from where to break string and 'String' is actual text which will split.

Here is the example to show php explode function.

<?php
$string = "PHP tutorial to use explode and implode functions for beginners.";
$data = explode(" ", $string);
foreach($data as $parts) {
echo $parts . "<br/>";
}
?>
Output:-
PHP
tutorial
to
use
explode
and
implode
functions
for
beginners.

PHP implode() Function:-
Php implode function is used to convert an array into string. It return output as a string.

Syntax of implode function is as follow:-
implode(Separator,Array)
where 'Separator' indicate what to be come in between array elements and 'Array' is one which will get converted into string.

Here is the two examples to show php implode function.

<?php
$string = array("PHP","tutorial","to","use","explode","and","implode","functions","for","beginners.");
$data = implode(" ", $string);
echo $data;
?>
Output:-
PHP tutorial to use explode and implode functions for beginners.

<?php
$string = array("PHP","tutorial","to","use","explode","and","implode","functions","for","beginners.");
$data = implode("-", $string);
echo $data;
?>
Output:-
PHP-tutorial-to-use-explode-and-implode-functions-for-beginners.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Simple Contact Us Form in Php | PHP Tutorials for Beginners

Wed, 30 Jan 2013 12:53:00 +0000

Contact or Feedback Form in PHP:
Contact form is very essential for any web site. You can find every website have contact us form. With Contact us form or feedback form the owner of site comes to know what people think about there site. Php contact form is very easy to create. In this tutorial of php code for beginners I will show you the step by step procedure to create your contact us form in php.

First we create a html page for our contact us form. Copy the below code and save as contact.php/ contact.html.

<html>
<body>
<table>
<form name="contact_form" method="post" action="php_contact_form.php">
<tr>
<td><b>PHP Contact Form</b></td>
</tr>
<tr>
<td>Subject</td>
<td><input name="sub" id="sub" type="text" size="75"></td>
</tr>
<tr>
<td>Name:</td>
<td><input name="name" id="name" type="text"></td>
</tr>
<tr>
<td>Email</td>
<td><input name="email" id="email" type="text"></td>
</tr>
<tr>
<td>Message</td>
<td><textarea name="msg" cols="60" rows="5" id="msg"></textarea></td>
</tr>
<tr>
<td><input type="submit" name="Submit" value="Submit">
</tr>
</form>
</table>
</body>
</html>

In above code we have created contact us fields for the end user. As this is Simple contact form in php hence i used only name, subject,email and message fields. You can add more. After clicking submit button "php_contact_us.php" page will be called. This is the php contact page where we fetch the data of contact.html and send it using php mail function.

Now we will create "php_contact_us.php" page. In this page we write our php coding to send contact/feedback mail to admin of website.Copy the below code and save as .php_contact_us.php".

<?php
$subject = $_POST['sub'];
$name = $_POST['name'];
$from = $_POST['email'];
$message = $_POST['msg'];
$to = "[email protected]";
$send_email = mail($to,$subject,$message);
if($send_email){
echo "Your message is successfully sent!!!";
}else{
echo "Error in sending contact email!!!";
}
?>

In above code we use $subject to store subject of contact us form. Similarly we have used $name for the Senders name, $from for storing sender email address, $message for you message of feedback, and very important $to where receivers address is set.
After storing this data into variable now we have used php mail function to send the mail. After sending mail we are checking is mail sent proper or not. If it is successfully sent then we will show greeting message other wise some error message.

PHP Dynamic Drop Down Menu, Horizontal Menu in PHP | PHP Tutorial for Beginners

Wed, 23 Jan 2013 07:26:00 +0000

What is Menu bar or Horizontal menu?
Menu bar or Horizontal menu is one top most element of any website from where user can navigate to multiple pages. It Helps the user of your site to easily find out element for which he came.

Whenever we see or create a website the top most element is Navigation menu or Drop down menu or Horizontal menu. We can Google and get lots of code which create css menu bar which is static. But if we want to create dynamic drop down menu bar then only this code will not help. In Dynamic menu bar or horizontal menu we fetch the menu data from mysql database and show in front end.

Difference between Static and Dynamic Menu bar or Horizontal menu.
A static menu bar or horizontal menu is which we can not change from back end or admin panel. The list of menu items inserted in coding will be shown in menu until and unless we change or add them through menu code.
Where as the dynamic menu is one which show the menu items fetched from database table. If new item is inserted in database table then it automatically shown in front end menu bar.

PHP dynamic drop down menu or horizontal menu:
In this tutorial of php code for beginners we will show how to create Dynamic drop down menu bar or Dynamic drop down horizontal menu in php with use of mysql database.

Create a database named myhotel and two table in it called state and city.
The state table contain the state name and state id fields The city table contain city name, city id and state id in which he belong.

State table look like:-
state_id state_name
1 Maharashtra
2 Gujarat
4 Karnataka

City table look like:-
city_id state_id state_name
1 1 Mumbai
2 1 Pune
3 1 Thane
4 2 Gandhi nagar

Step 1:- Create a php configuration file which store the mysql database information. In my case it is config.php

<?php
$hostname_conn = "localhost";
$database_conn = "myhotel";
$username_conn = "root";
$password_conn = "";

$conn = mysql_connect($hostname_conn, $username_conn, $password_conn) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database_conn, $conn) or die("could not".mysql_error());
?>

Step 2:- Now create php file which contain your Dynamic menu.

<?php
// Included configuration file in our code.
include("config.php");
?>
<html>
<head>
<title>Dynamic Drop Down menu in php</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<ul id="Drop_Down_Menu">
<?php
// Creating query to fetch state information from mysql database table.
$state_query = "select * from state";
$state_result = mysql_query($state_query);
while($r = mysql_fetch_array($state_result)){ ?>
<li><a href="#"><?php echo $r['state_name'];?></a>
<ul>
<?php
$city_query = "select * from city where state_id=".$r['state_id'];
$city_result = mysql_query($city_query);
while($r1 = mysql_fetch_array($city_result)){ ?>
<li><a href="#"><?php echo $r1['city_name'];?></a></li>
<?php } ?>
</ul>
</li>
<?php } ?>
</ul>
</body>
</html>

Step 3:- Css for you Menu bar. Put this in to style.css file.

<style type="text/css">
ul {
font-family: Arial, Verdana;
font-size: 14px;
margin: 0;
padding: 0;
list-style: none;
}
ul li {
display: block;
position: relative;
float: left;
}
li ul {
display: none;
}
ul li a {
display: block;
text-decoration: none;
color: #ffffff;
border-top: 1px solid #ffffff;
padding: 5px 15px 5px 15px;
background: #1e7c9a;
margin-left: 1px;
white-space: nowrap;
}
ul li a:hover {
background: #3b3b3b;
}
li:hover ul {
display: block;
position: absolute;
}
li:hover li {
float: none;
font-size: 11px;
}
li:hover a { background: #3b3b3b; }
li:hover li a:hover {
background: #1e7c9a;
}

</style>

Now your Dynamic drop down menu bar or horizontal menu is ready to use.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

jQuery Ajax Tutorial and Example of jQuery Ajax in PHP | PHP Tutorials for Beginners

Thu, 17 Jan 2013 08:30:00 +0000

What is jQuery?
jQuery is a lightweight JavaScript library whos aim is "write less, do more". As jQuery is lightweight, it is easier to load in your website and has fast responce. With help of jQuery it much easier to use JavaScript on your website.
Jquery eliminates the many lines of code which we are doing in javascript and make them available with help of single method.

What is AJAX?
AJAX stand for Asynchronous JavaScript and XML. it is used for creating dynamic and fast web pages. Since AJAX is Asynchronous, it helps in updating a part of web page with out reloading the whole page.

What About jQuery and AJAX?
The combination of jquery and ajax provide powerfull functionality. With jquery ajax you can make request for text or html from your remote server. If data is large you can use json to receive them. After receiving ajax response we can use them in our html page.

jQuery provides some powerful set of jQuery AJAX API’s to handle AJAX requests. In normal way of making AJAX calls using JavaScript is a little bit odd as you have to first create an XMLHttpRequest object that depends on the browser and then make an AJAX call. Also sending a form data using AJAX is also bit difficult if we use normal JavaScript approach of calling AJAX.
jQuery provides simple yet powerfull functions which have extended the JavaScript AJAX methods and provide more flexible way. Let us see way of doing AJAX things in jQuery.

In this tutorial of php code for beginners we will show you how to use Jquery Ajax in your php form.
Lets start... To use Jquery Ajax we need to create two files, In first file our html php code present from where we do ajax request. in second file we process the ajax request and return the result to first page.

Step 1:- Create a school.php file and put this code in it.

<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
function getdetails(){
var name = $('#name').val();
var rno = $('#rno').val();
$.ajax({
type: "POST",
url: "details.php",
data: {fname:name, id:rno}
}).done(function( result ) {
$("#msg").html( " Address of Roll no " +rno +" is "+result );
});
}
</script>
</head>
<body>
<table>
<tr>
<td>Your Name:</td>
<td><input type="text" name="name" id="name" /><td>
</tr>
<tr>
<td>Roll Number:</td>
<td><input type="text" name="rno" id="rno" /><td>
</tr>
<tr>
<td></td>
<td><input type="button" name="submit" id="submit" value="submit" onClick = "getdetails()" /></td>
</tr>
</table>
<div id="msg"></div>
</body>
</html>

In above code we are taking name and roll no of student and pass this to details.php using jquery ajax.

Step 2:- Create details.php and put the below code in it.

<?php
$name = $_POST['fname'];
$rno = $_POST['id'];

$con = mysql_connect("localhost","root","");
$db= mysql_select_db("school", $con);
$sql = "SELECT address from students where name='".$name."' AND rno=".$rno;
$result = mysql_query($sql,$con);
$row=mysql_fetch_array($result);
echo $row['address'];
?>

In above code we are getting address of student with help of his name and roll number.

Note: We can do this with help of normal coding but the difference here is we are getting result without refreshing the page and that's the magic of jquery Ajax.

Don't forget to create database named "school" and table name "students". table student contain the fields name, rno and address.

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Jquery Simple Form Validation | PHP Tutorial for beginners

Tue, 15 Jan 2013 12:23:00 +0000

In this tutorial of php code for beginners we will look at jquery form validation with example.

<html>
<head>
<title>JQuery Form Validation</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#form1").validate({
debug: false,
rules: {
name: "required",
dropdown: "required",
email: {
required: true,
email: true
}
},
messages: {
name: "Please enter your good name.",
email: "Please enter your valid email address.",
dropdown: "Please select option from dropdown list.",
},
submitHandler: function(form) {

$.post('nextstep.php', $("#form1").serialize(), function(data) {
$('#result').html(data);
});
}
});
});
</script>
<style>
label.error { width: 250px; display: inline; color: red;}
</style>
</head>
<body>
<form name="form1" id="form1" action="" method="POST">
<label for="name" id="name_label">Name</label>
<input type="text" name="name" id="name" size="30" value=""/>
<br>
<label for="email" id="email_label">Email</label>
<input type="text" name="email" id="email" size="30" value=""/>
<br>
Please Select the City:
<select name="dropdown" id="dropdown">
<option value="">None</option>
<option value="mumbai">Mumbai</option>
<option value="delhi">Delhi</option>
<option value="pune">Pune</option>
</select>
<br>
<input type="submit" name="submit" value="Submit">
</form>

<div id="result"><div>
</body>
</html>

Hope this php tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.

Database Connection in Php | PHP Toutorial For beginners

Tue, 15 Jan 2013 11:04:00 +0000

After knowing the basic structure of php, next step is how to connect to the mysql database. To perform basic queries from within MySQL is very easy.This tutorial of phpcodeforbeginners will show you mysql database connection in php.

The first thing to do is connect to the database. To connect to mysql databse we use function mysql_connect().
Syntax of mysql_connect():-
mysql_connect(hostname, username, password)

Here "hostname" is name of your host(like 'localhost'), "username" is username of your host(For localhost it is 'roo') and "password" is password of your host site(Default is '').
Example:-
<?php
$hostname = "localhost";
$username = "root";
$password = "";

$conn = mysql_connect($hostname, $username, $password) or die("Unable to connect");
echo "Connected to MySQL";
?>

After successfull connection you should see "Connected to MySQL" when you run this script. If you can't connect to the server, make sure your password, username and hostname are correct.

Now we have created connection object, next step is to select a database to work with. To select database we use function mysql_select_db() with connection object.

Example:-
<?php
//selecting a database with name phptutorials.
$database = mysql_select_db("phptutorials",$conn)
or die("Could not select phptutorials");
?>

Now database is selected, let's try and run some queries. The function used to perform queries is named - mysql_query(). The function returns a resource that contains the results of the query, called the result set. To examine the result we're going to use the mysql_fetch_array function, which returns the results row by row.

Example:-
<?php
$result = mysql_query("SELECT id, name, address FROM students");
while ($row = mysql_fetch_array($result)) {
echo "ID:".$row{'id'}." Name:".$row{'name'}." Address:".$row{'year'}."<br>";
}
?>

Finally, we close the connection.

<?php
mysql_close($conn);
?>

Here is the full code:

<?php
$hostname = "localhost";
$username = "root";
$password = "";

//connection to the database
$conn = mysql_connect($hostname, $username, $password) or die("Unable to connect");
echo "Connected to MySQL";

//select database phptutorials
$database = mysql_select_db("phptutorials",$conn) or die("Could not select phptutorials");

//execute the SQL query and return records
$result = mysql_query("SELECT id, name, address FROM students");

//fetch tha data from the database
while ($row = mysql_fetch_array($result)){
echo "ID:".$row{'id'}." Name:".$row{'name'}." Address:".$row{'year'}."<br>";
}
//close the connection
mysql_close($conn);
?>

JQuery Validation for Multiple Checkbox Form | PHP Tutorials For Beginners

Tue, 15 Jan 2013 08:44:00 +0000

Sometime we come to the situation where we want to validate the form with multiple checkbox and at least one checkbox is selected.
In this tutorial of phpcodeforbeginner.blogspot.in we validate form with multiple checkboxes with use of jQuery. The result will return true only if atleast one checkbox is selected.

In below example we create a html page which have multiple checkboxes. When we click on submit a validate() function will get call and it will check how many checkbox is selected. If nothing is selected then it show javascript alert that "nothing is selected" otherwise it show the javascript alert with no of checkbox selected.
It is pretty simple code to validate multiple checkboxes with help of jquery. You can also try validating checkboxes using JavaScript.

<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script>
function validate()
{
var fields = $("input[name='checkbox']").serializeArray();
if (fields.length == 0)
{
alert('nothing selected');
}
else
{
alert(fields.length + " items selected");
}
}
</script>
</head>
<body>
<form action="" method="GET" id="Form">

<div><input name="checkbox" type="checkbox" value="PHP Tutorial" >Php Tutorial</div>
<div><input name="checkbox" type="checkbox" value="Javascript" >Javascript</div>
<div><input name="checkbox" type="checkbox" value="Validation" >Validation</div>

<input name="submit" type="button" value="submit" onclick="validate();">
</body>
</html>

Hope this jquery form validation for multiple checkboxes tutorial is useful for you. Keep following www.phpcodeforbeginner.blogspot.in for more help.