构造函数中的引用
刚开始学php 在php手册上看到 构造函数中的引用这一节 下面是我按照手册上写的 但是测试的结果 和手册上说的却不一样 实在是看不出来是哪里出错了
<?php <br /> class Foo{<br /> function Foo($name){<br /> global $globalref;<br /> $globalref[] = &$this;<br /> <br /> $this->setName($name);<br /> <br /> $this->echoName();<br /> <br /> }<br /> <br /> function echoName()<br /> {<br /> echo '<br />',$this->name;<br /> }<br /> <br /> function setName($name)<br /> {<br /> $this->name = $name;<br /> }<br /> }<br /> ?><br /> <br /> <br /> <?php <br /> $bar1 = new Foo('set the name is php');<br /> <br /> $bar1->echoName();<br /> $globalref[0]->echoName();<br /> <br /> //print_r($globalref);<br /> //手册上说 如果重新设置个新name $bar1 和 $globalref[0] 是不一样的 但是测试的时候 这里输出是一样 <br /> $bar1->setName('set the name is java');<br /> $bar1->echoName();<br /> $globalref[0]->echoName();<br /> ?>
------解决方案--------------------
不知道你的这段描述是出自什么“手册”
至少从代码上看是基于 php4 的,至于在 php4 中是否是那样表现,没有环境,就不得而知了
------解决方案--------------------
是的,php5的内核与php4的一点都一样,否则就不是php5而是php4.x了
与所有的软件系统一样,大版本号的改变,就表示发生了重大变化
虽然从php代码角度上看没有多大区别,但由于实现方法上的改变。可以认为根本就是两种语言
因此基于php4的解释,是不能用于php5的
你不是也看到手册中每个函数解释页上都有一个适用的版本号吗

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