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<?php class A { public static function exec(callable $c) { // this works $c(); // this won't return call_user_func($c); } public static function doSomething() { // implicit static in 5.x, non-static in 7 return self::exec(function(){ return "okay"; }); } } echo A::doSomething();
Output for git.master, git.master_jit, rfc.property-hooks
okay

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