 |
array_keys (PHP 4, PHP 5) array_keys -- 皚い┮Τ龄 弧array array_keys ( array input [, mixed search_value [, bool strict]] )
array_keys() input
皚い计┪琌﹃龄
璝狦﹚匡把计 search_value玥赣龄玥
input 皚い┮Τ龄常穦砆
PHP 5 癬ノ strict 把计ㄓ秈︽单ゑ耕===
ㄒ 1. array_keys() ㄒ
<?php
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
$array = array("blue", "red", "green", "blue", "blue");
print_r(array_keys($array, "blue"));
$array = array("color" => array("blue", "red", "green"),
"size" => array("small", "medium", "large"));
print_r(array_keys($array));
?>
|
ㄒ盢块 Array
(
[0] => 0
[1] => color
)
Array
(
[0] => 0
[1] => 3
[2] => 4
)
Array
(
[0] => color
[1] => size
) |
|
把ǎ array_values() ㎝ array_key_exists()
| |