array_unshift

$a = array("a" => "red", "b" => "green");
print_r($a);
array_unshift($a,"blue");
print_r($a);
 
运行结果

Array
(
[a] => red
[b] => green
)
Array
(
[0] => blue
[a] => red
[b] => green
)

posted @ 2022-10-18 14:32  WH迪诺  阅读(34)  评论(0)    收藏  举报