note 55290 added to function.ereg

Beware that eregs in PHP4 are broken, for instance if you want to match "a to z, 0,9 and -" you might want to use [a-z0\-9] but it will silently fail due to a bug : the \ don't escape some special chars, so this regexp is equivalent to [a-z0-9] ! Also putting \[ or \] inside the brackets (to match for a bracket) doesn't work, or raises an error, but curiously putting the \- at the end works. So if you want to match '[a-z\|\[\]]' you have to type '([a-z]|\-|\[\|])' This isn't a misplaced bug report : I put this here so other users don't lose a few hours like I did tracking it down. Workaround : use preg, you'll be faster learning the preg syntax than trying to make ereg work by tweaking the expression. ---- Submitter IP: 64.246.30.37 ---- Manual Page -- http://www.php.net/manual/en/function.ereg.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55290 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55290&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55290&report=yes Search -- http://master.php.net/manage/user-notes.php