PHP - Getting the index of a element from a array

Question

How can I get the current element number when I'm traversing a array?

I know about count(), but I was hoping there's a built-in function for getting the current field index too, without having to add a extra counter variable.

like this:

foreach($array as $key => value)   if(index($key) == count($array) .... 

Answer 1

You should use the key() function.

key($array) 

should return the current key.

If you need the position of the current key:

array_search($key, array_keys($array)); 

Answer 2

PHP arrays are both integer-indexed and string-indexed. You can even mix them:

array('red', 'green', 'white', 'color3'=>'blue', 3=>'yellow'); 

What do you want the index to be for the value 'blue'? Is it 3? But that's actually the index of the value 'yellow', so that would be an ambiguity.

Another solution for you is to coerce the array to an integer-indexed list of values.

foreach (array_values($array) as $i => $value) {   echo "$i: $value\n"; } 

Output:

0: red 1: green 2: white 3: blue 4: yellow