Write a program to print Factorial number in php.

<?php

$num = 4;
$factorial = 1;
for ($x=$num; $x>=1; $x--)
{
  $factorial = $factorial * $x;
}
echo "Factorial of $num is $factorial";

?>


Output
Factorial of 4 is 24

Display latest comments in wordpress template.

Display latest comments for each post in WordPress

<?php 
$commentArr = array_reverse(get_approved_comments($wp_query->post->ID));
$count = 1; // number of comments
if ($commentArr) { ?>
    <h3><?php commentsNum('0 comment', '1 comment', '% comments'); ?></h3>
    <ul>
    <?php foreach ($commentArr as $comment) {
        if ($count++ <= 2) { ?>
        <li><?php comment_author_link(); ?>: <?php comment_excerpt(); ?></li>
        <?php }
    } ?>
    </ul>
<?php } else {
    echo '<p>No Comments..</p>';
} ?>

How to add facebook fun page in Blog and page.

Click "Add Widget" to post a badge on your Blogger site that links to your Facebook account.

Step 2: Place this code wherever you want the plugin to appear on your page.

<iframe src="https://www.facebook.com/plugins/follow.php?href=https%3A%2F%2Fwww.facebook.com%2Fmanjeetkashyapsaharanpur&width=250&height=80&layout=standard&size=large&show_faces=true&appId" width="250" height="80" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true"></iframe>


Change facebook page name.

How to hide admin bar in wordpress frontend.

If you would rather remove the toolbar with code, just drop the following snippet into your functions.php file:

add_filter('show_admin_bar', '__return_false');

What is Practice in technical language.

When I'm saying "Practice", what does it mean? I would say:

    Practice is a habit.

    Practice is a routine.

    Practice does not need to remember.

    Practice comes by practicing.

    Practice needs dedication and commitment.

How to page reload in ajax and jquery in php

How to page reload in ajax and jquery in php

<div id="manjeet"></div>

<script type='text/javascript'>

 function autoRefresh_div()

 {

      $('#manjeet').load('get_data.php');// a function which will load data from other file after x seconds

  }

  setInterval('autoRefresh_div()', 5000);

</script>

How to browser close and tab close event in JavaScript

Following javascript code you could use to detect browser close and tab close event.

window.onbeforeunload = function () {
    alert("Do you really want to close?");
};

How to check internet connection using javascript

Here is the simple javascript function for getting internet status working or not..

<script>
function checkInternetCon() {
var status = navigator.onLine;
if (status) {
alert("Yes!! Working");
} else {
alert("Sad!! Not Working ");
}
}</script>

Call above function on button onclick event.

<button onclick="checkInternetCon()">Check Internet Connection</button>

You can also use setInterval method in javascript

setInterval(function(){ 
var status = navigator.onLine;
 if (status) {
 console.log('Working..');
 } else {
  console.log('Not Working..');
 }
}, 5000); 

How to crop image in php.

 Learn more about php GD Library http://php.net/manual/en/book.image.php

 create index.php file.

<?php
# Note: Install GD libraries 
$filename = 'image.jpg'; //orignal file 
$newFilename = 'newImage.png'; // New file after modification 
 
list($current_width, $current_height) = getimagesize($filename);
$left = 0; //crop left margin
$top = 0;//crop right margin
$cropWidth = 1056; 
$cropHeight = 400;
$canvas = imagecreatetruecolor($cropWidth, $cropHeight);
$currentImage = imagecreatefromjpeg($filename);
imagecopy($canvas, $currentImage, 0, 0, $left, $top, $currentWidth, $currentHeight);
imagejpeg($canvas, $newFilename, 100);
?>

Create pagination using corephp and phpmysql.

First of all create your Mysql database and table

CREATE TABLE IF NOT EXISTS `posts` (
  `id` INT(11) NOT NULL AUTO_INCREMENT,
  `title` VARCHAR(200) NOT NULL,
  `description` text NOT NULL,
  `created` datetime NOT NULL,
  `updated` datetime NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1;

 create show.php file.

<?php
$hostname = 'localhost'; // your mysql hostname
$username = 'root';   // Your mysql db username
$password = 'root';   // You mysql db password
$database = 'demo';       // mysql db name
$con = mysqli_connect($hostname, $username, $password, $database);
 
    if (isset($_GET["page"])) { 
      $page  = $_GET["page"]; 
    } else { 
      $page=1; 
    };
$recordsPerPage=20; 
$start = ($page-1) * $recordsPerPage; 
$query = "SELECT * FROM posts LIMIT $start, $recordsPerPage"; 
$result = mysqli_query($con, $query);
 
echo "<table><tr><th>Title</th><th>Description</th></tr>";
while ($row = mysqli_fetch_assoc($result)) { 
            echo "<tr>
            <td>".$row['title']."</td><td>".$row['description']."</td></tr>";            
}
echo "</table>";
 
$query = "SELECT * FROM posts"; 
$result = mysqli_query($con, $query); //run the query
$totalRecords = mysqli_num_rows($result);  //count number of records
$totalPages = ceil($totalRecords / $recordsPerPage); 
 
echo "<a href='show.php?page=1'>".'|<'."</a> "; // Go to 1st page  
 
for ($num=1; $num<=$totalPages; $num++) { 
            echo "<a href='show.php?page=".$num."'>".$num."</a> "; 
}; 
echo "<a href='show.php?page=$totalPages'>".'>|'."</a> "; // Go to last page
?>