Change $key of associative array in a foreach loop in php

Question

I have an array like this:

array(
    \'firstName\' => \'Joe\',
    \'lastName\'  => \'Smith\'
    )

I need to loop over every elemen

Answer 1

You can't modify the keys in a foreach, so you would need to unset the old one and create a new one. Here is another way:

$array = array_combine(array_map('ucfirst', array_keys($array)), $array);

1. Get the keys using array_keys
2. Apply ucfirst to the keys using array_map
3. Combine the new keys with the values using array_combine