How to get the key of the current item of an array?

Question

使用next()和prev()导航数组时，如何获取数组所在的当前键？

Answer 1

You can use the key function :

key() returns the index element of the current array position.

And, as a quick example, you can consider this portion of code :

$array = array(
    'first' => 123,
    'second' => 456,
    'last' => 789, 
);

reset($array);      // Place pointer on the first element
next($array);       // Advance to the second one
$key = key($array); // Get the key of the current (i.e. second) element

var_dump($key);

It'll output, as expected, the key of the second element :

string 'second' (length=6)

Answer 2

使用key函数获取内部指针当前指向的项的键。

Answer 3

你可能想要key（） 。

Answer 4

you can get this in very simple way that is

foreach( $array as $key=>$value)
{   
   echo " Key ". $key;
}

It will echo last key name .. you can manage after that as you want to do. \\ My solution is for get current key name of Array Index.