RE: [PHP-DEV] Inline Lambda Functions

> Instead of this..... > > array_filter($source, function($x){ return $x < 5; }); > > Being able to do this..... (or something like it). > > array_filter($source, $x => $x < 5); This really isn't clear. Deciphering the intent of the code requires looking at all the surrounding stuff, because it could mean something totally different in an array. In other words, // This would be a lambda array_filter($source, $x => $x < 5); // This would not array($source, $x => $x < 5); // and this would not call_user_func_array('array_filter', array($source, $x => $x < 5)); The fact that the syntax for an expression isn't portable in places where (so far) every other expression has been, is a serious concern. Additionally, the proposed syntax is unusable for functions with more than one line, making it similar in badness to if statements without braces. IMO the current syntax for inline functions is perfectly sufficient, even for the PLINQ example given earlier, and has massive advantages over this one in terms of readability, affordance, flexibility, and language clarity. John Crenshaw Priacta, Inc.