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PHP4实际应用经验篇(4)_php基础

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May 17, 2016 am 09:46 AM

作者:孙运动

除了"if"语句，PHP还提供了"if-else"结构，用来定义当语句中的条件描述为"false”值时所执行的PHP代码。

　　"if-else" 结构使用方法如下：

--------------------------------------------------------------------------------
if (condition)
{
do this!
}
else
{
do this!
}
--------------------------------------------------------------------------------
　　你将看到，这种结构可以用来对上一篇那个例子进行大大简化－替代两个分开的 "if" 语句嵌套，我们可以把他们混合在一个单一的"if-else" 语句中：

--------------------------------------------------------------------------------

// 检查名字并反馈相应的信息
if ($name == "neo")
{

?>

欢迎进入母体，Neo。

也许是武力强迫你才这样做的,,,哦，不正当的影片！

}
else
{
?>

我想知道你是否听说过莎士比亚， .

他要求得到一束另一个名字的玫瑰化，因为那束闻起来可能会更芳香一些。

对于你，很不幸，我不同意。拒绝进入！

}
?>

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