note 113421 added to function.is-array

Here is something for compare is_assoc functions. <?php function is_assoc1($var) { return is_array($var) && array_diff_key($var, array_keys(array_keys($var))); } function is_assoc2($var) { return is_array($var) && array_diff_key($var, array_fill(0, count($var), null)); } $count = 1000000; $a = array('a' => 'foo', 'b' => 1, 'c' => true); $b = array('a', 'b', 'c'); $i = $start_time = $end_time = 0; $start_time = microtime(true); for ($i = 0; $i < $count; $i++) { assert(is_assoc1($a) === true); assert(is_assoc1($b) === false); } $end_time = microtime(true); echo 'is_assoc1 : ' . ($end_time - $start_time) . "\n"; $start_time = microtime(true); for ($i = 0; $i < $count; $i++) { assert(is_assoc2($a) === true); assert(is_assoc2($b) === false); } $end_time = microtime(true); echo 'is_assoc2 : ' . ($end_time - $start_time) . "\n"; ?> It prints something like this: ``` % php is_assoc.php is_assoc1 : 19.36315202713 is_assoc2 : 18.954080104828 ``` The first one is from skaimauve (http://www.php.net/manual/en/function.is-array.php#89332). The second one is mine. ---- Server IP: 69.147.83.199 Probable Submitter: 80.13.96.236 ---- Manual Page -- http://php.net/manual/en/function.is-array.php Edit -- https://master.php.net/note/edit/113421 Del: integrated -- https://master.php.net/note/delete/113421/integrated Del: useless -- https://master.php.net/note/delete/113421/useless Del: bad code -- https://master.php.net/note/delete/113421/bad+code Del: spam -- https://master.php.net/note/delete/113421/spam Del: non-english -- https://master.php.net/note/delete/113421/non-english Del: in docs -- https://master.php.net/note/delete/113421/in+docs Del: other reasons-- https://master.php.net/note/delete/113421 Reject -- https://master.php.net/note/reject/113421 Search -- https://master.php.net/manage/user-notes.php