note 32117 added to function.ereg-replace

I have a situation as follows: $variable = ereg_replace("TEXT", addLink($oneVariable), $otherVariable); In this example, I have a function being called to replace my text. Is the function called each (1) once, and the same data used every time PHP finds a match, (2) every time a match is found, or (3) never if no match is found? -- http://www.php.net/manual/en/function.ereg-replace.php http://master.php.net/manage/user-notes.php?action=edit+32117 http://master.php.net/manage/user-notes.php?action=delete+32117 http://master.php.net/manage/user-notes.php?action=reject+32117