<?php
$s = "<img height=\"123\" src=\"1.jpg\" width=\"256\">";
eregi("src=[\"|\']?(.*\.jpg).*",$s,$r);
echo $r[1];
?>结果:
1.jpg
$s = "<img height=\"123\" src=\"1.jpg\" width=\"256\">";
eregi("src=[\"|\']?(.*\.jpg).*",$s,$r);
echo $r[1];
?>结果:
1.jpg
preg_match_all('/\<img(?:\s.*)?src=(.+)(?:\s.*)?\>/U',$s,$m);
print_r($m[1]);
<img src='http://www.test.com/test.php?title=Image%20from%20"Joah%20son"' />
print_r($matches[2]);