bueltge/class_fb_backlink_checker.php

## class_fb_backlink_checker.php
<?php
/**
Example of use:

$bl_check = new Fb_Backlink_Checker( 'http://www.example.com', 'http://other.com' );
$bl_check->get_contents();
$bl_check->fetch_links();

if ( TRUE !== $bl_check->check() ) {
	echo 'Backlink not found.';
}else{
	echo 'Backlink found';
}
*/

class Fb_Backlink_Checker {

	var $url;
	var $content;
	var $links;
	var $link_to_check;

	function __construct( $url, $link_to_check ) {

		$this->url = $url;
		$this->link_to_check = $link_to_check;
	}

	function set_link_to_check( $link ) {

		$this->link_to_check = $link;
	}

	function get_contents() {

	 $this->content = file_get_contents( $this->url );
	}

	function fetch_links() {

		$regexp = "<a\s[^>]*href=(\"??)([^\" >]*?)\\1[^>]*>(.*)<\/a>";
		preg_match_all( "/$regexp/siU", $this->content, $matches );
		$this->links = $matches;

		return $matches;
	}

	function check() {

		foreach( $this->links[2] as $key => $url ) {
			if ( $this->link_to_check == $url
				return TRUE;
		}

		return FALSE;
	}

} // end class

## example.php
<?php
// Example of use:
$bl_check = new Fb_Backlink_Checker( 'http://www.example.com', 'http://other.com' );
$bl_check->get_contents();
$bl_check->fetch_links();

if ( TRUE !== $bl_check->check() ) {
	echo 'Backlink not found.';
}else{
	echo 'Backlink found';
}
	<?php
	/**
	Example of use:

	$bl_check = new Fb_Backlink_Checker( 'http://www.example.com', 'http://other.com' );
	$bl_check->get_contents();
	$bl_check->fetch_links();

	if ( TRUE !== $bl_check->check() ) {
	echo 'Backlink not found.';
	}else{
	echo 'Backlink found';
	}
	*/

	class Fb_Backlink_Checker {

	var $url;
	var $content;
	var $links;
	var $link_to_check;

	function __construct( $url, $link_to_check ) {

	$this->url = $url;
	$this->link_to_check = $link_to_check;
	}

	function set_link_to_check( $link ) {

	$this->link_to_check = $link;
	}

	function get_contents() {

	$this->content = file_get_contents( $this->url );
	}

	function fetch_links() {

	$regexp = "<a\s[^>]href=(\"??)([^\" >]?)\\1[^>]>(.)<\/a>";
	preg_match_all( "/$regexp/siU", $this->content, $matches );
	$this->links = $matches;

	return $matches;
	}

	function check() {

	foreach( $this->links[2] as $key => $url ) {
	if ( $this->link_to_check == $url
	return TRUE;
	}

	return FALSE;
	}

	} // end class
	<?php
	// Example of use:
	$bl_check = new Fb_Backlink_Checker( 'http://www.example.com', 'http://other.com' );
	$bl_check->get_contents();
	$bl_check->fetch_links();

	if ( TRUE !== $bl_check->check() ) {
	echo 'Backlink not found.';
	}else{
	echo 'Backlink found';
	}