php中的var声明的作用?
刚学不久的PHP,但即使《PHP圣经》涉及知识面很广的教材也没有提到PHP可以用var声明变量,但看网络上的一书类,用到了VAR来声明变明。如:
class test{
var $a;
var $b;
......
}
我测试了一上,好像var只能在类中使用,如果类以外使用会出错(PHP5.3)。
目前所能总结的也就这点了,哪位能系统讲一下这个关键字的其它作用?
------解决方案--------------------
PHP5中public就等同于var了
只是为了兼容PHP4,所以还保留var
------解决方案--------------------
向前兼容性

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