#27644 [Opn->WFx]: array_merge reverses elements in first array

ID: 27644 Updated by: iliaa@php.net Reported By: ashok at yahoo-inc dot com -Status: Open +Status: Wont fix Bug Type: *General Issues Operating System: FreeBsd 4.3 PHP Version: 4.3.4 New Comment: The problem is fixed in PHP5, however it cannot be addressed in PHP 4 and hence marked won't fix. Previous Comments: ------------------------------------------------------------------------ [2004-03-24 21:02:46] ashok at yahoo-inc dot com Please see the index in your output. The first output shows array[1] before array[0]. I think it should be top priority as it is changing the array elments under you and you don't expect that. It's a random behaviour. Thanks. -Ashok. ------------------------------------------------------------------------ [2004-03-23 13:37:10] iliaa@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 Works just fine. I've replaced your print code with print_r(), which shows the correct order and here is what you get: Array ( [1] => Text [0] => 1 ) Array ( [0] => Text [1] => 1 [2] => 0 [3] => 0 [4] => 0 [5] => 0 [6] => 0 [7] => 0 [8] => 0 ) ------------------------------------------------------------------------ [2004-03-18 20:25:59] ashok at yahoo-inc dot com Description: ------------ When using array_merge to merge 2 arrays, the order of elements of the first are changed. The keys are all integers unlike other existing bugs where keys are mixed integers and strings. Reproduce code: --------------- <?php $string1 = "1|Text|0-0-0-0-0-0-0"; list ($arr1[0], $arr1[1], $string2) = explode ("|", $string1, 3); print ("Values of arr1 after first explode...\n"); for ($i = 0; $i < count ($arr1); $i++) print ("arr1[$i] = " . $arr1[$i] . "\n"); print ("\nValues of arr1 after second explode...\n"); $arr1 = array_merge ($arr1, explode ('-', $string2)); for ($i = 0; $i < count ($arr1); $i++) print ("arr1[$i] = " . $arr1[$i] . "\n"); ?> ~ Expected result: ---------------- arr1[0] = 1 arr1[1] = Text arr1[2] = 0 arr1[3] = 0 arr1[4] = 0 arr1[5] = 0 arr1[6] = 0 arr1[7] = 0 arr1[8] = 0 Actual result: -------------- arr1[0] = Text arr1[1] = 1 arr1[2] = 0 arr1[3] = 0 arr1[4] = 0 arr1[5] = 0 arr1[6] = 0 arr1[7] = 0 arr1[8] = 0 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=27644&edit=1