#24159 [Ver]: Php starts indexing from zero if lowest index is negative

ID: 24159 Updated by: iliaa@php.net Reported By: rsen010 at ec dot auckland dot ac dot nz Status: Verified -Bug Type: Scripting Engine problem +Bug Type: Documentation problem Operating System: Any PHP Version: 4.3.2, 5.0.0b2-dev New Comment: This is a documentation issue. The change was made to avoid possible crashes. Previous Comments: ------------------------------------------------------------------------ [2003-08-03 19:40:43] et@php.net This behaviour was introduced in 4.3.0 - reclassifying as an array problem. I don't know if the behaviour or the documentation should be changed. ------------------------------------------------------------------------ [2003-06-12 15:38:20] rsen010 at ec dot auckland dot ac dot nz Description: ------------ Hi, When I was going through “Chapter 7.types” in PHP manual I found something confusing regarding the following statement “Having e.g. the highest index being -6 will result in -5 being the new key” (under Syntax – specifying with array()).What actually happens is it Php starts indexing from zero if lowest index is negative value unless there is no index of zero. But amazing thing is sometimes it omit some values unless. Just consider the following examples. Ex:1 $a = array(-3=>'February', 'March'); print_r($a); This will prints out the folloiwng > Array ( [-3] => February [0] => March ) Ex:2 $a = array( 'January', '0'=>'a','b', 'c',-3=>'February', 'March'); print_r($a); This will prints out the folloiwng Array ( [0] => a [1] => b [2] => c [-3] => February [3] => March ) Please be kind to check this out if I’m correct and reply me. Thanks Naleen Reproduce code: --------------- $a = array(-3=>'February', 'March'); print_r($a); $a = array( 'January', '0'=>'a','b', 'c',-3=>'February', 'March'); print_r($a); Expected result: ---------------- Array (-3=>February, [-2] => March ); Array ( [1]=>January [0] => a [2] => b [3] => c [-3] => February [4] => March ) Actual result: -------------- Array ([-3] => February [0] => March ) Array ( [0] => a [1] => b [2] => c [-3] => February [3] => March ) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=24159&edit=1