php - 重置 PHP 数组索引

Question

我有一个如下所示的 PHP 数组:

[3] => Hello
[7] => Moo
[45] => America

什么 PHP 函数可以做到这一点？

[0] => Hello
[1] => Moo
[2] => America

Answer 1

array_values() 函数 ^{[ docs ]} 这样做:

$a = array(
    3 => "Hello",
    7 => "Moo",
    45 => "America"
);
$b = array_values($a);
print_r($b);

Array
(
    [0] => Hello
    [1] => Moo
    [2] => America
)