php 数据遍历

<?php  
//定义一个数组  
$arr = array(0=>"zero", 1=>"one", 2=>"two");  
//使用第一种方法对数组进行遍历  
foreach ($arr as $value) {  
    echo "Value: $value; ";  
}  
echo "<BR>";  
//使用第二种方法对数组进行遍历  
foreach ($arr as $key => $value) {  
    echo "Key: $key; Value: $value; ";  
}  
?> 
<?php
//定义一个数组
$arr = array(0=>"zero", 1=>"one", 2=>"two");
//使用第一种方法对数组进行遍历
foreach ($arr as $value) {
    echo "Value: $value; ";
}
echo "<BR>";
//使用第二种方法对数组进行遍历
foreach ($arr as $key => $value) {
    echo "Key: $key; Value: $value; ";
}
?>
 
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<?php  
//定义数组  
$array = array("ar1" => array(5=>100, 3=>120, 4=>30),  
"ar2" => array(4=>"three", 9=>"four", 1=>"five"));  
//对数组进行遍历  
foreach ($array as $v1)   
{  
    foreach ($v1 as $v2)   
    {  
        print "$v2\n";  
    }  
}  
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/zhuzhao/archive/2009/03/08/3969003.aspx
 <?php
            //定义数组  
            $array = array("ar1" => array(5=>100, 3=>120, 4=>30),
            "ar2" => array(4=>"three", 9=>"four", 1=>"five"));
            //对数组进行遍历
      &