cherifgx’s gists

cherifgx / Small files download

Created March 26, 2013 05:57

Small files download to your server

	<?php

	file_put_contents("Tmpfile.zip", file_get_contents("http://someurl/file.zip"));

cherifgx / Detect AJAX Request

Created March 26, 2013 05:08

Most of the JavaScript frameworks like jQuery, mootools send and additional HTTP_X_REQUESTED_WITH header when they make an AJAX request, so that you can detect AJAX request on server side.

	<?php
	if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'){
	//If AJAX Request Then
	}else{
	//something else
	}

cherifgx / Resize Images on the fly

Created March 26, 2013 05:08

Creating thumbnails of the images is required many a times, this code will be useful to know about the logic of thumbnail generation.

	<?php

	/**********************
	*@filename - path to the image
	*@tmpname - temporary path to thumbnail
	*@xmax - max width
	*@ymax - max height
	*/
	function resize_image($filename, $tmpname, $xmax, $ymax)
	{

cherifgx / Convert URLs within String into hyperlinks

Created March 26, 2013 05:08

This function converts URLs and e-mail addresses within a string into clickable hyperlinks.

	<?php
	function makeClickableLinks($text) {
	$text = eregi_replace('(((f\|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&//=]+)',
	'<a href="\1">\1</a>', $text);
	$text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&//=]+)',
	'\1<a href="http://\2">\2</a>', $text);
	$text = eregi_replace('([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})',
	'<a href="mailto:\1">\1</a>', $text);

	return $text;

cherifgx / Prepend http to a URL

Created March 26, 2013 05:07

Some times you need to accept some url as input but users seldom add http:// to it, this code will add http:// to the URL if it’s not there.

	<?php
	if (!preg_match("/^(http\|ftp):/", $_POST['url'])) {
	$_POST['url'] = 'http://'.$_POST['url'];
	}

cherifgx / Unzip Zip File

Created March 26, 2013 05:07

	<?php
	/**********************
	*@file - path to zip file
	*@destination - destination directory for unzipped files
	*/
	function unzip_file($file, $destination){
	// create object
	$zip = new ZipArchive() ;
	// open archive
	if ($zip->open($file) !== TRUE) {

cherifgx / Truncate Text at Word Break

Created March 26, 2013 05:07

This function will truncate strings only at word breaks which can be used to show a teaser for complete article without breaking words.

	<?php
	// Original PHP code by Chirp Internet: www.chirp.com.au
	// Please acknowledge use of this code by including this header.
	function myTruncate($string, $limit, $break=".", $pad="...") {
	// return with no change if string is shorter than $limit
	if(strlen($string) <= $limit)
	return $string;

	// is $break present between $limit and the end of the string?
	if(false !== ($breakpoint = strpos($string, $break, $limit))) {

cherifgx / Use Gravatars in Your Application

Created March 26, 2013 05:04

With ever increasing popularity of WordPress, Gravatars have become quite popular. It is very easy to integrate them into your application as they provide a very easy to use API.

	<?php
	/******************
	*@email - Email address to show gravatar for
	*@size - size of gravatar
	*@default - URL of default gravatar to use
	*@rating - rating of Gravatar(G, PG, R, X)
	*/
	function show_gravatar($email, $size, $default, $rating)
	{
	echo '<img src="http://www.gravatar.com/avatar.php?gravatar_id='.md5($email).

cherifgx / Find Similarity Between Two Strings

Created March 26, 2013 05:03

PHP includes a function similar_text very rarely used but quite useful that compares two strings and returns the percentage of similarity between two.

	<?php
	similar_text($string1, $string2, $percent);
	//$percent will have the percentage of similarity

cherifgx / Creating a Tag Cloud

Created March 26, 2013 05:03

	<?php

	function getCloud( $data = array(), $minFontSize = 12, $maxFontSize = 30 )
	{
	$minimumCount = min($data);
	$maximumCount = max($data);
	$spread = $maximumCount - $minimumCount;
	$cloudHTML = '';
	$cloudTags = array();