PHP OOP calling method in preg_replace function

Question

I want to make mentions similar to Twitter but for the user profiles i use ID not userNames so i creat a function that get the UserID based on userName and in a procedural code is working but in oop dosent ..

$title = ' Hey @Stackoverflow can u help me ?';

$mentions = (preg_replace("/\@([a-zA-Z0-9\-_]{3,30})/e", 
    "'<a href=\"http://mySite.com/user:'.$this->mentionName('$1').
'\">@$1</a>'",$title));

expected url result

http://mySite.com/user:1

not expected result

http://mySite.com/user:Stackoverflow

// This is a loop not a single string

Just don't use e wiki.php.net/rfc/remove_preg_replace_eval_modifier — KingCrunch
– KingCrunch, Commented Mar 9, 2012 at 12:49

Community · Accepted Answer · 2023-11-17 20:08:53Z

1

You can't do that.

Look into preg_replace_callback function, or assign your match to another variable, and use that for your class function.

edited Nov 17, 2023 at 20:08

CommunityBot

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answered Mar 9, 2012 at 12:55

alexy2k

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2 Comments

Ben Over a year ago

OK but the $mentions and $title are in __construct and function mentionName is outSide..

Mark Baker Over a year ago

Then define the callback function as an array ($class, $method)... and if outSide isn't in scope then you need to make it in scope

Richard · Accepted Answer · 2012-03-09 13:37:55Z

0

If you want to use preg_replace in combination with a function that evaluates the result and modifies it, use preg_replace_callback

http://php.net/manual/en/function.preg-replace-callback.php

function returnUser($matches){
    return $this->mentionName($matches[1]);
}

$mentions = preg_replace_callback("/\@([a-zA-Z0-9\-_]{3,30})/e", "returnUser",$title));

edited Mar 9, 2012 at 13:37

answered Mar 9, 2012 at 12:52

Richard

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4 Comments

Richard Over a year ago

Try again. Forgot to add _callback

Ben Over a year ago

Warning: preg_replace_callback() [function.preg-replace-callback]: Requires argument 2, 'returnUser', to be a valid callback in

Ben Over a year ago

. Btw in function mentionName is a query that pull the data from database

Richard Over a year ago

return $this->mentionName($matches[1]); won't work from that function. The preg_replace_callback should work, otherwise check the documentation and do some testing.

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