Get images from HTML img element in string

<?php

$data = 'alsdj<img src="http://localdomain.com/donotinclude.jpg">fklasjdf<img src="image.jpg">asdfasdf<img src="http://domain.com/image.jpg">asdfasdfsf<img src="dont_include_me.png">asdfasfasdf';

$images = array();

// Domains to not include images from (for instances where the full URL is specified to image)

$localhosts = array( 'localdomain.com' );

// Remove or add any extensions TO be included

$allowed_extensions = array( 'jpg', 'jpeg' );

preg_match_all('/(img|src)\=(\"|\')[^\"\'\>]+/i', $data, $media);

unset($data);

$data=preg_replace('/(img|src)(\"|\'|\=\"|\=\')(.*)/i',"$3",$media[0]);

foreach($data as $url)

{

$url_data = parse_url( $url );

$info = pathinfo($url);

// Goto next, we're only looking for remote hosts

if( ! array_key_exists( 'host', $url_data ) ) continue;

// Check if this is an extension we want to include

if( array_key_exists( 'extension', $info ) && in_array( $info['extension'], $allowed_extensions) ){

// Verify this isn't one of our local hosts (where the full URL is specified)

if( ! in_array( $url_data['host'], $localhosts ) ){

array_push($images, $url);

}

}

}

echo 'Total Images: ' . count( $images );

// This is just linebreaks for display formatting

print "\n\n";

echo 'Image Data:';

var_dump( $images );