array_search()通过键值查询数组键名
$array
=
array
(
"id"
=>1001,
"name"
=>
"李雷博客"
,
"domain"
"www.mdaima.com"
"code"
"PHP"
);
var_dump(
//直接返回键值为“PHP”的键名
$jianzhi
array_search
echo
;
结果:
array(4) {
["id"]=> int(1001)
["name"]=> string(12) "李雷博客"
["domain"]=> string(14) "www.mdaima.com"
["code"]=> string(3) "PHP"
}
code //通过键值查询键名