知道数组的关键字

Question

I have an array. Say example

array('x'=>1);

this is having only one element. This array can change. Key change but only one element will be there. e.g. next time the array can be like --

array('y'=>1);

Now the problem is - I don't know the key name, I need the key name and the value as well.

But as it is having only one element I don't want to run a foreach.

Is it possible ?

Answer 1

For that you can use key function

Try this here snippet here

$array=array('x'=>1);
echo key($array);//x