- preg_match_all: documentation ( source)
<?php
$sourcestring="<img>http://miximoms.dev/static/uploads/n7krkqvkkr/1386778095zkn_playmobil-smooth-criminal.jpg</img>";
preg_match_all('/<img>(.*?)<\/img>/',$sourcestring,$matches);
foreach($matches as $deselect){
echo $deselect[0]."<br />";
}