[SOLVED] Combining two arrays based on values php

Combining two arrays based on values php

I was wondering, how it is possible to perform function on each array element based on value.

For example, if I have two arrays:

[
  0 =>  'gp', 
  1 =>  'mnp', 
  2 =>  'pl', 
  3 =>  'reg'
]

And

$translation = [
    'gp' => 'One',
    'mnp' => 'Two',
    'pl' => 'Three',
    'reg' => 'Four',
    'other' => 'Five',
    'fs' => 'Six'
];

How can I get

    [ 
      0 =>  'One', 
      1 =>  'Two', 
      2 =>  'Three',
      3 =>  'Four'
   ]

I managed with foreach, but I believe there are some more efficient ways to do that. I tried to play around with array_walk and array_map, but din't get it. :(

Solution

<?php

$arr = [
  0 =>  'gp', 
  1 =>  'mnp', 
  2 =>  'pl', 
  3 =>  'reg'
];

$translation = [
    'gp' => 'One',
    'mnp' => 'Two',
    'pl' => 'Three',
    'reg' => 'Four',
    'other' => 'Five',
    'fs' => 'Six'
];

$output = array_map(function($value)use($translation){
  return $translation[$value];
  }, $arr);

print_r($output);

Output:

Array
(
    [0] => One
    [1] => Two
    [2] => Three
    [3] => Four
)