Getting single array element key

[jwagner]

Hello all,

How to you retrieve the key of a single array element?

I know the function array_keys returns all array keys, but I am looking to get the key of a single element in a loop. (I also know of the each() function, but I'm looking to get ONLY the key, no more no less).

In other words, just like I access the element value using $my_array[n], how do I it for the key part?

Thanks guys.

[dagon]

how do you know which key you want? if its based on a value, use array_search

[Bjom]

If you want to go by "position" in the array you can do two (and a half) things:

a) advance the pointer in a for() loop using next() (use reset() to be sure the pointer is at the start - foreach() works as well as it advances the pointer each pass - just count inside the foreach loop

b) use array_keys($myArr) to get an array containing all the keys of $myArr as a numerically indexed array an then work from there.

However: The question would be in that case: why did you get an associative array in the first place?

To conclude this rather hypothetical input: most likely dagon nailed it: use array_search

Bjom