RegEx Help

Trying to replace this tag in a post :

Lorem ipsum dolor sit amet, consectetur adipisicing elit, [tag]13231[/tag] sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

PHP:

I want to get 13231 and replace it with other text.

 

Try this. untested

$content = preg_replace('/\[tag\](.*)\[\/tag\]/','$something_else',$content);

PHP:

EDIT: opps I had an extra apostrophe, try it now.

 

You should consider making the quantifier non-greedy, if there was ever multiple [tag]'s in the content - it would only match once.

Like this:

<?php
    $string = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, [tag]13231[/tag] sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.';
    $replacement_text = 'other text';
    
    $string = preg_replace('#\[tag\](.*?)\[/tag\]#', $replacement_text, $string);
    echo $string;
?>

PHP:

 

Does the OP not need to backslash the forward / in [/tag\] to [\/tag\] ?

Just asking...

 

I use '#' as the delimiter instead of '/'. So it doesn't clash with the closing tag.

 

ah right, didn't know that, thanks

 

thank you very much for the quick fix.