PHP - Get key name of array value

Question

I have an array as the following:

function example() {
    /* some stuff here that pushes items with
        dynamically created key strings into an array */         


        

Answer 1

you can use key function of php to get the key name:

 'apple',
    'fruit2' => 'orange',
    'fruit3' => 'grape',
    'fruit4' => 'apple',
    'fruit5' => 'apple');

    // this cycle echoes all associative array
    // key where value equals "apple"
    while ($fruit_name = current($array)) {
      if ($fruit_name == 'apple') {
        echo key($array).'
';
      }
    next($array);
     }
?>

like here : PHP:key - Manual