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<?php function html($value) { return htmlentities($value); } class Foo { function html($value) { return htmlentities($value); } } $value = '123'; $object = new Foo(); htmlentities($value); html($value); $object->html($value); call_user_func('html', $value); call_user_func(array($object, 'html'), $value); call_user_func_array($func, array($value)); call_user_func_array(array($object, 'html'), array($value));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $func in /in/be3Nv on line 25 Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/be3Nv:25 Stack trace: #0 {main} thrown in /in/be3Nv on line 25
Process exited with code 255.

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