Bug #17750 Updated: array_unique is not returning array[0] when all values are equal

ID: 17750 Updated by: venaas@php.net Reported By: thiago@softexpert.com -Status: Open +Status: Closed Bug Type: Arrays related Operating System: Windows 2000 PHP Version: 4.2.1 New Comment: I've now made it always keep the first (independent of sorting algorithm used). In your example the result should now be array(0 => 8). So far this is only in CVS and latest snapshots. Previous Comments: ------------------------------------------------------------------------ [2002-06-13 13:35:38] thiago@softexpert.com <?php $array = array(0 => 8, 1 => "8", 2 => "8"); $array = array_unique($array); print_r($array); ?> The manual says: === MANUAL BEGIN === array_unique() takes input array and returns a new array without duplicate values. Note that keys are preserved. array_unique() sorts the values treated as string at first, then will keep the first key encountered for every value, and ignore all following keys. It does not mean that the key of the first related value from the unsorted array will be kept. Note: Two elements are considered equal if and only if (string) $elem1 === (string) $elem2. In words: when the string representation is the same. The first element will be used. ==== MANUAL END ==== So, it should return $array[1], right ? Its always returning the last value. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=17750&edit=1