Re: Re: [RFC] Deprecations for PHP 7.1

On Thu, 2016-02-18 at 19:57 +0000, Andrea Faulds wrote: > I've actually used create_function on occasion for programmatically > generating functions (in particular to create a function for each PHP > operator), but it's trivially polyfillable, and it'd be better if > people > were implementing it themselves (and thus knowing it's based on > eval()) > than using it directly without this knowledge. Just as a detail: You can't create a 100% compatible polyfill to create_function(). create_function() names functions starting with \0. Functions starting with \0 are hidden from get_defined_functions() and possibly other places. php > echo sizeof(get_defined_functions()['user']); 0 php > create_function('', ''); php > echo sizeof(get_defined_functions()['user']); 0 php > eval('function foo() {}'); php > echo sizeof(get_defined_functions()['user']); 1 johannes

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