5 replies to this topic

[webcodez]

Hi there,

Having a problem with the following code I created:

$new_reply = preg_replace_callback("/[CODE](.*)[CODE]/", create_function('$matches', 'return highlight_string($matches[1], 1);'), $new_reply);

What it's supposed to do is replace for example [ CODE ] some text [ / CODE ] by highlight_string("some text") (returning that text highlighted to the variable $new_reply).

Why aint it working? Any suggestions?

Thanks in advanced~!

Cheers.

Edited by John, 09 April 2010 - 09:35 PM.

[webcodez]

Anyone?

[webcodez]

Eh, just done it accordingly to: PHP: preg_replace_callback - Manual >_<

[John]

Don't listen to Jaan, like usual, he doesn't know what he is talking about. Nice use of lambda-style functions. However, square brackets are used as special characters (which define a character class). If you wish to use them as a "regular" character to match on, you must escape them.

<?php

$new_reply = "[CODE]test[/CODE]";

echo "Before: " . $new_reply . "\n";

$new_reply = preg_replace_callback("/\[CODE\](.*)\[\/CODE\]/", create_function('$matches', 'return highlight_string($matches[1], 1);'), $new_reply);

echo "After: " . $new_reply . "\n";

?>

john@mars [~]# php test.php

Before: [CODE]test[/CODE]

After: <code><span style="color: #000000">

test</span>

</code>

[webcodez]

Ah yeah that should do it, great! Thanks a lot for your help. Encountered same problem with other regular expressions ( did not escape the brackets ) which are fixed too now =].