PHP的抽象类、接口的区别和选择
- <?php???
- abstract?class?Father?{??
- ????function?meth1()?{??
- ????????echo?“meth1…
“;?? - ????}??
- ????abstract?function?meth2();??
- ????public?$var1=“var1”;??
- ????public?static?$var2=“var2”;??
- ????const?Var3=“Var3”;??
- }??
- class?Son?extends?Father?{??
- ????function?meth2()?{??
- ????????echo?“meth2?of?Son…
“;?? - ????}??
- }??
- $s=new?Son();??
- echo?$s->var1.“
“;?? - echo?Father::$var2.“
“;?? - echo?Father::Var3.“
“;?? - ??
- ??
- Interface?IFather?{??
- ????//public?$iVar1=”iVar1″;????????此处接口定义中不能包含成员变量??
- ????//public?static?$iVar2=”iVar2″;?此处接口定义中不能包含静态变量??
- ????const?iVar3=“iVar3”;??
- ????function?iMeth1();??
- }??
- Class?ISon?implements?IFather?{??
- ????function?iMeth1()?{??
- ????????echo?“iMeth1…
“;?? - ????}??
- }??
- $is=new?ISon();??
- echo?IFather::iVar3;??
- ?>??
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转载请注明原文链接：PHP的抽象类、接口的差异和选择
转载请注明原文链接：PHP的抽象类、接口的差异和选择
