Using preg_replace_callback on class methods
To prevent an error like preg_replace_callback() [function.preg-replace-callback]: Requires argument 2, ‘function_name’, to be a valid callback, use the following snippet:
$text = preg_replace_callback(
'((http(s?)\://){1}\S+)',
array(get_class($this), 'function_name'),
$text
);
'((http(s?)\://){1}\S+)',
array(get_class($this), 'function_name'),
$text
);
The trick is to call the method like so:
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