PHP 4.0 Bug #4116: array_walk allows userdata to be passed by ref but only half works

From: alexphpbug@blamey.freeserve.co.uk Operating system: Redhat linux 6.0 i386 SMP PHP version: 4.0 Beta 4 Patch Level 1 PHP Bug Type: Misbehaving function Bug description: array_walk allows userdata to be passed by ref but only half works The following code demonstrates the 'feature' ... <CODE> function myfunc(&$value, $key, &$user) { $value = "$user:$value"; $user++; printf("%3d : %s\n", $key, $value); } $myarray=array("one", "two", "three"); $myvar=1; array_walk($myarray, "myfunc", $myvar); echo "myvar=$myvar"; </CODE> This code outputs the following ... <SAMP> 0 : 1:one 1 : 2:two 2 : 3:three myvar=1 </SAMP> myvar has been incremented between calls within array_walk but the final value is not passed back to the original variable. I understand that the above usage is not mentioned in the docs but it would be a nice feature to have. The current functionality seems to be somewhat inconsistent and I doubt its usefulness.