在php遍历数组有三个函数foreach、each、list & each下面我们看它们是如何遍历多维数组的。
先看一个遍历二维数组
| 代码如下 |
复制代码 |
|
$sports = array(
'football' => 'good',
'swimming' => 'very well',
'running' => 'not good'
);
foreach ($sports as $key => $value) {
echo $key.": ".$value."
";
}
?>
|
下面看遍历三维数组
例1
| 代码如下 |
复制代码 |
|
function arr_fun($arr){
if(is_array($arr)){
foreach($arr as $v){
if(is_array($v)){
arr_fun($v);
}else{
echo $v."
";
}
}
}else{
echo $arr."
";
}
}
|
例2
| 代码如下 |
复制代码 |
|
/*
* -------------------------------------------------
* Url : www.111com.net
* Date : 2011-03-09
* -------------------------------------------------
*/
function arr_foreach ($arr)
{
if (!is_array ($arr))
{
return false;
}
foreach ($arr as $key => $val )
{
if (is_array ($val))
{
arr_foreach ($val);
}
else
{
echo $val.'
';
}
}
}
$arr1 = array (1=>array(11,12,13,14=>array(141,142)),2,3,4,5);
echo ' ';
print_r($arr1);
echo '';
arr_foreach ($arr1);
?>
输出结果
Array
(
[1] => Array
(
[0] => 11
[1] => 12
[2] => 13
[14] => Array
(
[0] => 141
[1] => 142
)
)
[2] => 2
[3] => 3
[4] => 4
[5] => 5
)
11
12
13
141
142
2
3
4
5
|
利用list与each遍历二维数组
| 代码如下 |
复制代码 |
|
$sports = array(
'football' => 'good',
'swimming' => 'www.111com.net',
'running' => 'not good'
);
while (list($key, $value) = each($sports)) {
echo $key.": ".$value."
";
}
?>
|
