Doc #63787 [Opn->Nab]: Array_unique notice (array to string conversion)

Edit report at https://bugs.php.net/bug.php?id=63787&edit=1 ID: 63787 Updated by: googleguy@php.net Reported by: enumag at gmail dot com Summary: Array_unique notice (array to string conversion) -Status: Open +Status: Not a bug Type: Documentation Problem Package: Arrays related Operating System: any PHP Version: 5.4.9 Block user comment: N Private report: N New Comment: This is already mentioned in the documentation under http://us1.php.net/array- unique#refsect1-function.array-unique-notes See note for: "Note: Note that array_unique() is not intended to work on multi dimensional arrays." Previous Comments: ------------------------------------------------------------------------ [2012-12-17 12:04:41] enumag at gmail dot com Description: ------------ If array_unique gets an array of arrays as it's parameter and a custom $sort_flag is not provided, it throws this error (array to string conversion). The reason is obvious, any value is changed to a string and then compared. The problem is that it took me quite some time to figure it out and a less experienced programmer is totally clueless. Not sure if this can be fixed in PHP without BC break but at the very least it could be mentioned in documentation of array_unique function. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63787&edit=1