Assign multiple keys to same value in array

Question

 $lang = array(
        \'thank you\'=>\'You are welcome\',
        \'thanks\'=>\'You are welcome\',
        \'thank ya\'=>\'You are welcome\'
    );
         


        

Answer 1

I do it in three steps:

1 - Define unique values

2 - Fill repetitive value

3 - Union 1. and 2.

$lang = array(
    'hello'=>'hello', 
    'goodbye'=>'goodbye'
);

$keys = array('thank you','thanks','thank ya');
$result = array_fill_keys($keys, 'You are welcome');

$lang += $result;

Have a look at array_fill_keys and Array Operators +=