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<?php function a() {echo "a";} $a= 3; $f = "a"; $f($a); exit; class A { private static function __invke() { echo "a"; }};//function() {}; $a = new A; //$a = function() { echo "b";}; $ref = new ReflectionMethod($a, '__invoke'); var_dump(is_object($a), is_callable($a)); $a(); $ref->setAccessible(true); $b = 3; $ref->invoke($a, $b); exit; function ab($a) { } $b = 3; a($b);
Output for git.master, git.master_jit, rfc.property-hooks
a

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