Use the preg_replace function to match images and add links

$con = file_get_contents("http://bbs.it-home.org/wzjs/");
$pattern="/<[img|IMG].*?src =['|"](.*?(?:[.gif|.jpg|.png]))['|"].*?[/]?>/";
$new_con = preg_replace($pattern ,"$0",$con);
echo $new_con;
?>

Explanation: $0 represents this matching content, $1 represents the content matched by the first (), $2 represents the content matched by the second (), and so on! In this way, a link is added to the picture. Friends who are interested may wish to test it by themselves.

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