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<?php class a { static public function a() { return true;} } $cls = [ a::a(), 'a::a','strpos::test' , 'strlen', function(){}, null]; foreach($cls as $cl) { var_dump(is_callable($cl)); var_dump(is_callable($cl,true)); var_dump($cl instanceof Closure); }
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(false) bool(false) bool(true) bool(true) bool(false) bool(false) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(true) bool(false) bool(false) bool(false)

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