php regular expression and replace

Question

Would be possible with php and one regular expression to do the following. Get all hyperlinks inside of a content and rewrite them if the top level domain of hyperlink is matching a given tld name from array.

Now have a regular expression which rewrites all hyperlinks in a given content

preg_replace('/<a(.*)href="([^"]*)"(.*)>/','<a$1href="goto.php?url=$2"$3>', $content);

example

$tld = array("http://www.example.com","http://www.test.com");

if <a href="www.example.com">example</a> than <a href="/goto.php?url= www.example.com"</a>;

[The pony he comes...](http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454) — Niet the Dark Absol, Sep 06 '12 at 17:15
Thanks a lot for your advice, I have been ending up to use php's DOM parser — lgt, Sep 07 '12 at 08:24

score 1 · Answer 1 · answered Sep 06 '12 at 17:35

1

You might want to solidify your regex a bit...

$pattern = <<<EOL
/<a([^>]+)href\s*=\s*(['" ]?)([^"'> ]*)(['" ]?)([^>]*)>/si
EOL;

$replacement = "<a$1href='goto.php?url=$3'$5>";

preg_replace($pattern, $replacement, $content);

Not able to test this right now, so there may be a typo...

answered Sep 06 '12 at 17:35

HappyTimeGopher

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14

Thanks a lot I'm going to give a try with it – lgt Sep 06 '12 at 18:22

php regular expression and replace

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