note 118279 added to functions.user-defined

From: Date: Sat, 07 Nov 2015 15:52:17 +0000
Subject: note 118279 added to functions.user-defined
Groups: php.notes 
Request: Send a blank email to php-notes+get-204105@lists.php.net to get a copy of this message
As of PHP 7.0, you can restrain type of return value of user defined functions. Syntax is : function FunctionName ($arg1, $arg2, ...) : TYPE { ... } TYPE is a string representing the type of return value, TYPE can be a class name or a php variable type, such as array/string/bool/int/float. When TYPE is one of the following value, it also stands for a classname str/boolean/integer/real/double/resource/object/scalar However,in my opion, boolean/bool, integer/int ... should have the same meaning, but at least in PHP7, they stand for different meanings respectively. This may be fixed in later versions of PHP. <?php function wxc ($var) : string { return $var; } ?> this function must return a string, if it return something else when called, a "Fatal error: Uncaught TypeError" error will be triggered. code above is supported only in PHP 7+ ---- Server IP: 72.52.91.14 Probable Submitter: 118.117.77.220 ---- Manual Page -- http://php.net/manual/en/functions.user-defined.php Edit -- https://master.php.net/note/edit/118279 Del: integrated -- https://master.php.net/note/delete/118279/integrated Del: useless -- https://master.php.net/note/delete/118279/useless Del: bad code -- https://master.php.net/note/delete/118279/bad+code Del: spam -- https://master.php.net/note/delete/118279/spam Del: non-english -- https://master.php.net/note/delete/118279/non-english Del: in docs -- https://master.php.net/note/delete/118279/in+docs Del: other reasons-- https://master.php.net/note/delete/118279 Reject -- https://master.php.net/note/reject/118279 Search -- https://master.php.net/manage/user-notes.php

« previous php.notes (#204105) next »