在PHP中数组分为两类： 数字索引数组和关联数组。

其中数字索引数组和C语言中的数组一样，下标是为0，1，2…

而关联数组下标可能是任意类型，与其它语言中的hash，map等结构相似。

方法1：foreach

复制代码 代码如下:

<?php

$sports = array(

'football' => 'good',

'swimming' => 'very well',

'running' => 'not good');

foreach ($sports as $key => $value) {

echo $key.": ".$value."<br />";

}

?>

输出结果：

football: good

swimming: very well

running: not good

方法2：each

复制代码 代码如下:

<?php

$sports = array(

'football' => 'good',

'swimming' => 'very well',

'running' => 'not good');

while (!!$elem = each($sports)) {

echo $elem['key'].": ".$elem['value']."<br />";

}

?>

输出结果：

football: good

swimming: very well

running: not good

方法3：list & each

复制代码 代码如下:

<?php

$sports = array(

'football' => 'good',

'swimming' => 'very well',

'running' => 'not good');

while (!!list($key, $value) = each($sports)) {

echo $key.": ".$value."<br />";

}

?>

输出结果：

football: good

swimming: very well

running: not good