Regex find and replace invalid img tags.

[noexcal]

I need to replace invalid img tags on submit.

 

PHP will preg_replace <img src="http://somesite.com/script.php"> but will allow <img src="http://somesite.com/image.gif"> something like

 

$field = preg_replace('!\<img(.*)src=\"^(http|https)\:\/\/(.*)\"(.*)\.^(jpg|gif|jpeg|png)(.*)\>!i', '..', $field);

 

That does not work, but you get the main idea.

I do not need some long code, I know this can be done simple, because I have done similar stuff.. For some reason I just get stuck on this one.

[effigy]

I need to replace invalid img tags on submit.

 

What are "invalid img tags"?

[noexcal]

oh sorry, xss attacks such as were used to attack myspace.

 

<img src="http://site.com/deleteuser?task=dodelete"> stuff like that.

 

I only want to allow img tags that are gif jpg jpeg png