Home Backend Development PHP Tutorial PHP4实际应用经验篇(4)

PHP4实际应用经验篇(4)

Jun 01, 2016 pm 02:30 PM

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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