note 105146 added to language.oop5.decon

misha at gmail dot com: [quote]This is kinda weird to me as it is not obvious behavior.... Initiating constructor having no arguments, using call with parameters will not throw error/warning. <?php class A { # no arguments constructor function __construct() { echo "WierdoO"; } } $param = 1; $a = new A( $param ); ?> // Output "WierdoO" Notice that this anomaly is observed only for No Argument Constructor case.[/quote] Try replacing echo "Wierdo0"; with echo func_num_args()...or better yet: class A{ public function __constructor(){ $args = func_get_args(); foreach($args as $key => $value){ echo $key . " => " . $value . "<br>"; } } } $a = new A(); $a = new A("one"); $a = new A("one", 2); $a = new A("one", 2, "0x11"); Think of it as a simple way to overload a function. You can do it to any function, not just constructors. http://www.php.net/manual/en/function.func-get-args.php http://www.php.net/manual/en/function.func-get-arg.php http://www.php.net/manual/en/function.func-num-args.php All three pages say this, or similar: This function may be used in conjunction with func_get_arg() and func_get_args() to allow user-defined functions to accept VARIABLE LENGTH ARGUMENT LISTS. ---- Server IP: 69.147.83.197 Probable Submitter: 216.118.145.154 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.decon.php Edit -- https://master.php.net/note/edit/105146 Del: integrated -- https://master.php.net/note/delete/105146/integrated Del: useless -- https://master.php.net/note/delete/105146/useless Del: bad code -- https://master.php.net/note/delete/105146/bad+code Del: spam -- https://master.php.net/note/delete/105146/spam Del: non-english -- https://master.php.net/note/delete/105146/non-english Del: in docs -- https://master.php.net/note/delete/105146/in+docs Del: other reasons-- https://master.php.net/note/delete/105146 Reject -- https://master.php.net/note/reject/105146 Search -- https://master.php.net/manage/user-notes.php