javascript / php - Get src of image from the URL of the site -

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i noticed @ http://avengersalliance.wikia.com/wiki/file:effect_icon_186.png, there image (a small one) there. click on it, brought page: http://img2.wikia.nocookie.net/__cb20140312005948/avengersalliance/images/f/f1/effect_icon_186.png.

for http://avengersalliance.wikia.com/wiki/file:effect_icon_187.png, after clicking on image there, brought page: http://img4.wikia.nocookie.net/__cb20140313020718/avengersalliance/images/0/0c/effect_icon_187.png

there many similar sites, http://avengersalliance.wikia.com/wiki/file:effect_icon_001.png, http://avengersalliance.wikia.com/wiki/file:effect_icon_190.png (the last one).

i'm not sure if image link related link of parent site, may know, possible http://img2.wikia.nocookie.net/__cb20140312005948/avengersalliance/images/f/f1/effect_icon_186.png string, string http://avengersalliance.wikia.com/wiki/file:effect_icon_186.png, using php or javascript? appreciate help.

here small php script can this. uses curl content , domdocument parse html.

<?php      /*      *  educational purposes      */      function get_wiki_image($url = '') {          if(empty($url)) return;          $curl = curl_init($url);         curl_setopt($curl, curlopt_returntransfer, true);         $output = curl_exec($curl);         curl_close($curl);          $dom = new domdocument;          libxml_use_internal_errors(true);         $dom->loadhtml($output);         libxml_use_internal_errors(false);          return $dom->getelementbyid('file')->firstchild->firstchild->getattribute('src');     }      echo get_wiki_image('http://avengersalliance.wikia.com/wiki/file%3aeffect_icon_186.png');

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