Bug #76505 [Com]: array_merge_recursive() is duplicating sub-array keys

Edit report at https://bugs.php.net/bug.php?id=76505&edit=1 ID: 76505 Comment by: german dot drulyk at gmail dot com Reported by: german dot drulyk at gmail dot com Summary: array_merge_recursive() is duplicating sub-array keys Status: Verified Type: Bug Package: Arrays related Operating System: https://3v4l.org/ PHP Version: 7.2.6 Block user comment: N Private report: N New Comment: I see some discussion centered around the expected result and just wanted to chime in. Numeric keys in the root array are treated differently than sub-arrays. Previous Comments: ------------------------------------------------------------------------ [2018-06-20 14:30:18] requinix@php.net > | If, however, the arrays have the same numeric key, the later > | value will not overwrite the original value, but will be appended. Right, but here they aren't "the same numeric key". The 64 only exists in the second array. The truth is that numeric keys' values are always appended, regardless of whether they existed in the first array. ------------------------------------------------------------------------ [2018-06-20 14:21:57] cmb@php.net > But shouldn't the expected result have 64=>300 and not 99=>300? The docs say[1]: | If, however, the arrays have the same numeric key, the later | value will not overwrite the original value, but will be appended. [1] <http://php.net/manual/en/function.array-merge-recursive.php> ------------------------------------------------------------------------ [2018-06-20 14:21:10] requinix@php.net > But shouldn't the expected result have 64=>300 and not 99=>300? Actually no. The docs aren't exactly clear on this but I believe it's intended behavior that values in the second array having numeric keys are appended rather than created using the same key. ------------------------------------------------------------------------ [2018-06-20 14:16:52] requinix@php.net https://3v4l.org/6ivO9 Bizarre. But shouldn't the expected result have 64=>300 and not 99=>300? ------------------------------------------------------------------------ [2018-06-20 13:30:48] german dot drulyk at gmail dot com PHP 4.x and 5.x produce the expected result but PHP 7.x does not. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=76505 -- Edit this bug report at https://bugs.php.net/bug.php?id=76505&edit=1