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Bug #11085 preg_replace_callback and class methods
Submitted: 2001-05-24 08:38 UTC Modified: 2001-05-24 09:25 UTC
From: bilo at mit dot it Assigned:
Status: Closed Package: PCRE related
PHP Version: 4.0.5 OS: Linux
Private report: No CVE-ID: None
 [2001-05-24 08:38 UTC] bilo at mit dot it
I was using preg_replace with the '/F' parameter, and it
was working perfectly till v4.0.4pl1. Now it has been
substituted by preg_replace_callback.

Does preg_replace_callback work with class method as a callback function, too? If it does, how should it be

I'm asking this because in each of these cases:

preg_replace_callback(/{([A-Z_][A-Z0-9_]*)}/i', $this->callmeback, $text);
preg_replace_callback(/{([A-Z_][A-Z0-9_]*)}/i', "\$this->callmeback", $text);
preg_replace_callback(/{([A-Z_][A-Z0-9_]*)}/i', '$this->callmeback', $text);

I get a warning:

preg_replace_callback() requires argument 2, [...],
to be a valid callback

More: there is another drawback. With preg_replace + '/F' parameter I could also specify additional parameters in the command line. Now I can't.


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 [2001-05-24 09:25 UTC]
Method callbacks are performed with the syntax array( $object, 'method'); in your case you want to write 

preg_replace_callback( '/{([A-Z_][A-Z0-9_]*)}/i', array( &$this, 'callmeback');, $text);

Btw, you missed the ' after callback( ...

- Markus
 [2001-05-24 09:25 UTC]
Forget the ';' after 'callmeback') ...

- Markus
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