#33622 [Bgs->Opn]: $i++ is not $i+1

ID: 33622 Updated by: derick@php.net Reported By: meh at v-cm dot net -Status: Bogus +Status: Open -Bug Type: Scripting Engine problem +Bug Type: Documentation problem Operating System: Windows XP PHP Version: 4.3.11 New Comment: Right, but afaik it's not documented, so making it a doc problem. Previous Comments: ------------------------------------------------------------------------ [2005-07-09 14:43:34] helly@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php . ------------------------------------------------------------------------ [2005-07-09 14:36:22] meh at v-cm dot net Description: ------------ The operators ++ and -- don't increment/decrement boolean values. This behaviour could be extremly annoying when you have something like: $key = array_search($thekey, array_keys($thearray)); for($i=$key; $x<count($thearray); $i++) echo "foo"; Workaround: $key = array_search($thekey, array_keys($thearray)); if($key==false) $key=0; for($i=$key; $x<count($thearray); $i++) echo "foo"; If this behaviour is intended, then it should at least be documented that ++,-- doens't convert boolean values. Reproduce code: --------------- // Works $x = false; echo $x+1; // Outputs 1 // Doesn't work $x= false; $x++; echo $x; // Outputs nothing Expected result: ---------------- 11 Actual result: -------------- 1 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33622&edit=1