<?php class foo { public function __isset($name) {echo 'isset'; return false;} public function __set($name, $value) {echo 'set';} public function __get($name) {echo 'get'; return NULL;} public function __unset($name) {echo 'unset';} } $x = new foo; $y = 'bar'; var_dump(is_callable($x->{$y}));
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