note 75392 added to function.array-intersect-key

You must be careful when using this function because an bug of php is present. Look this: <?php header("Content-type: text/plain"); $array1 = array('azul' => 1, 'rojo' => 2, 'verde' => 3, 'morado' => 4, 1=> 1); $array2 = array('verde' => 5, 'azul' => 6, 'amarillo' => 7, 'cyan' => 8, '1' => 1); print_r(array_intersect_key($array1, $array2)); ?> it will show: Array ( [azul] => 1 [verde] => 3 [1] => 1 ) This problem is present as much in array_intersect_key as in array_keys and even in foreach: <?php $a = array ("0"=> 1); foreach ($a as $key => $value) { var_dump($key); //show int(0) } ?> ---- Server IP: 190.74.254.137 Probable Submitter: 200.109.153.207 ---- Manual Page -- http://www.php.net/manual/en/function.array-intersect-key.php Edit -- https://master.php.net/note/edit/75392 Del: integrated -- https://master.php.net/note/delete/75392/integrated Del: useless -- https://master.php.net/note/delete/75392/useless Del: bad code -- https://master.php.net/note/delete/75392/bad+code Del: spam -- https://master.php.net/note/delete/75392/spam Del: non-english -- https://master.php.net/note/delete/75392/non-english Del: in docs -- https://master.php.net/note/delete/75392/in+docs Del: other reasons-- https://master.php.net/note/delete/75392 Reject -- https://master.php.net/note/reject/75392 Search -- https://master.php.net/manage/user-notes.php