array_uniqueDescriptionThis function simply removes duplicate elements from array and returns the resulting array. Key/value relationships are preserved in the resulting array. All elements of array that are themselves arrays are considered identical, and only the first exists in the returned array. Similarly, all elements of array that are objects are considered identical, and only the first of them exists in the returned array. ExampleExample 35. Remove duplicate values from an array class foo { var $foo = 7; } class bar { var $bar = 8; } $foo = new foo; $bar = new bar; $array = array(array(1), 1, $bar, $foo, 2, 3.3, 2, array(3, 4), array('bob' => 4)); echo "The array with duplicates removed is:\n"; print_r(array_unique($array)); Output: The array with duplicates removed is: Array ( [0] => Array ( [0] => 1 ) [1] => 1 [2] => bar Object ( [bar] => 8 ) [4] => 2 [5] => 3.3 )
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
This material may be distributed only subject to the terms and conditions set forth
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