regular expressions - excluding strings

[barcsdad]

I've got a bit of code that will seek out <a> tags from a block of text, replace the 'href' content and copy the original 'href' to the end. Here it is:

$data = ereg_replace ("<A[^>]+href=\"([ ]+)[^>]\">", "<a href='http://www.mydomain.com/myscript.php&url=\1' target='_blank'>", $data);

I've been trying to modify this so that if the link is a 'mailto', it will skip the process. So basically, I can't figure out how to exclude the word 'mailto'. Is this possible?

Marty

[xblue]

I don't think the ereg functions support this, but the preg functions have something called lookahead which is very handy.

example:
$text = preg_replace('#"(?!mailto🙂([^"]+)"#', $replacement, $text);

is the delimiter

(?!mailto🙂 is the lookahead, making sure whatever follows doesn't start with mailto:
all other elements are not different from ereg.