Usage of php _ call, _ set, and _ get

Usage of php _ call, _ set, and _ get

Class foo { Function _ call ($ name, $ arguments ){ Print ("Did you call me? I'm $ name! "); Print_r ($ arguments ); Print (" "); } Function doSecond ($ arguments) { Print ("Right, $ arguments! "); } } $ Test = new foo (); $ Test-> doFirst ('No this function '); $ Test-> doSecond ('This function exist '); ?> _ Call: This special method can be used to implement an "overload" action, in this way, you can check your parameters and pass the parameters by calling a private method. For example, use _ call to achieve "overload ". Class Magic { Function _ call ($ name, $ arguments ){ If ($ name = 'Foo '){ If (is_int ($ arguments [0]) $ this-> foo_for_int ($ arguments [0]); If (is_string ($ arguments [0]) $ this-> foo_for_string ($ arguments [0]); } } Private function foo_for_int ($ x ){ Print ("oh an int! "); } // By bbs.it-home.org Private function foo_for_string ($ x ){ Print ("oh a string! "); } } $ Test = new Magic (); $ Test-> foo (3 ); $ Test-> foo ("3 "); ?> 2. the usage of _ set and _ get is a great method. the __set and _ get methods can be used to capture non-existent variables and methods in an object. Example: _ set and _ get Class foo { Function _ set ($ name, $ val ){ Print ("Hello, you tried to put $ val in $ name "); } Function _ get ($ name ){ Print ("Hey you asked for $ name "); } } $ Test = new foo (); $ Test->__ set ('name', 'justencoding '); $ Test->__ get ('name '); ?> In php programming, especially php object-oriented programming, the flexible application of _ call, _ set, and _ get can surprise you, and we recommend that you master it.