1.list函数

list()可以将索引数组转为变量\不支持关联数组

$seo = ['我爱你';'PHP'];
list($a,$b) = $seo;
echo $a,$b;

结果为：

我爱你PHP

2.each函数

$people = array("Bill", "Steve", "Mark", "David");
    print_r (each($people));

结果为：

Array
(
    [1] => Bill
    [value] => Bill
    [0] => 0
    [key] => 0
)

3.通过循环输出整个数组

$seo = ['我爱你','PHP'];
while (list($key,$val) = each($seo)) {
        echo "$key => $val<br>";

结果为：

0 => 我爱你
1 => PHP