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mixed call_user_method ( string method_name, object &obj  [, mixed parameter [, mixed ...]] )ÀàËÆcall_user_method_array,
mixed call_user_func_array ( string $callback_function, array  param_arr )´Óµ÷ÓÃcallback_function£¬²¢Ê¹ÓÃparam_arrÖеIJÎÊý
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// Type 1: Simple callback
call_user_func(‘my_callback_function’);// Type 2: Static class method call
call_user_func(array(‘MyClass’, ‘myCallbackMethod’));
// Type 3: Object method call
$obj = new MyClass();
call_user_func(array($obj, ‘myCallbackMethod’));
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