PHP - 获取数组值的键名
我有一个数组如下:
function example() {
/* some stuff here that pushes items with
dynamically created key strings into an array */
return array( // now lets pretend it returns the created array
'firstStringName' => $whatEver,
'secondStringName' => $somethingElse
);
}
$arr = example();
// now I know that $arr contains $arr['firstStringName'];
我需要找出的索引,以便我能够通过其索引遍历并返回键字符串。我该怎么做?$arr['firstStringName']
array_keys($arr)
'firstStringName'