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Homephp教程php手册PHP数组及条件,循环语句学习

PHP数组及条件,循环语句学习,需要的朋友可以参考下

1. 数组

实例1:

1).效果图预览:

PHP数组及条件,循环语句学习

2).代码截图:

以下是一个二维数组, 实际用的比较多.

PHP数组及条件,循环语句学习

$mess = array('title'=>'留言标题1','content'=>'内容','ctime'=>'2012-1-1 12:34:23'); //关联数组

//遍历数组的语句

//第一种
foreach($mess as $v){ //foreach可以遍历关联数组; 而for循环只能遍历枚举数组, 不能遍历关联数组.
//$v是接收数组元素的值, 循环体循环次数由数组元素决定
echo $v.'
';
}

//第二种
foreach($mess as $k=>$v){
//$k用于接收数据元素对应的键名或者索引,香港虚拟主机,$v是接收数组元素的值
echo $k.'-----'.$v.'
';

实例2:

1).效果图预览:

PHP数组及条件,循环语句学习

2).代码截图:

PHP数组及条件,循环语句学习

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