note 87059 added to function.settype

In trying to convert an array of strings to an array of ints, I attempted to use settype with array_walk. <?php //$numArray is generated by another process $numArray = array('13','14','33'); var_dump($numArray); //my conversion function function str_to_int($val){ //remember: settype($x, 'int') returns boolean (1=success, 0=failure) //--> so return $x to return new value settype($val,'int'); echo "<br />gettype = ".gettype($val)."<br />"; return $val; } array_walk($numArray,'str_to_int'); var_dump($numArray); ?> The var_dumps both return the following: <?php array(3) { [0]=> string(2) "13" [1]=> string(2) "14" [2]=> string(2) "33" } ?> The gettype echo will show the value as an integer. So it seems that settype($val,'int') makes the conversion, but the function return value remains a string. Since settype returns a boolean, using <?php $val = settype($val, 'int'); ?> is not a option. I resolved my array value conversion using this instead: <?php $numArray = array_map(create_function('$value', 'return (int)$value;'),$numArray); ?> Thanks to the posting here: http://usrportage.de/archives/ 808-Convert-an-array-of-strings-into-an-array-of-integers.html Perhaps this will save someone else spinning wheels a bit. Also thanks to robin at barafranca dot com for pointing out the boolean return value of settype. ---- Server IP: 64.71.164.2 Probable Submitter: 76.22.69.123 ---- Manual Page -- http://www.php.net/manual/en/function.settype.php Edit -- https://master.php.net/note/edit/87059 Del: integrated -- https://master.php.net/note/delete/87059/integrated Del: useless -- https://master.php.net/note/delete/87059/useless Del: bad code -- https://master.php.net/note/delete/87059/bad+code Del: spam -- https://master.php.net/note/delete/87059/spam Del: non-english -- https://master.php.net/note/delete/87059/non-english Del: in docs -- https://master.php.net/note/delete/87059/in+docs Del: other reasons-- https://master.php.net/note/delete/87059 Reject -- https://master.php.net/note/reject/87059 Search -- https://master.php.net/manage/user-notes.php