对于静态绑定中的static::在此不多做解释,我想用实例来证明,这个例子是来自官方文档:
For example one:
class A{ private function foo(){ echo "this is a test function"."<br>"; } public function test(){ $this->foo(); static::foo(); }}$A=new A();$A->test();
输出结果:
this is a test function
this is a test function
For example Two:
class A{ private function foo(){ echo "this is a test function"."<br>"; } public function test(){ $this->foo(); static::foo(); }}class B extends A{}$B=new B();$B->test();
输出结果:
this is a test function
this is a test function
For example three:
class A{ private function foo(){ echo "this is a test function"."<br>"; } public function test(){ $this->foo(); static::foo(); }}class B extends A{}class C extends A{ private function foo(){ } } $C=new C();$C->test();
输出结果:
this is a test function
( ! ) Fatal error: Call to private method C::foo() from context ‘A’ in D:\www\testXdebug\index.php on line 21
Call Stack
Time Memory Function Location
1 0.0156 135536 {main}( ) …\index.php:0
2 0.0156 135936 A->test( ) …\index.php:35
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