- array_map: documentation ( source)
- print_r: documentation ( source)
<?php
// Original snippet
// https://www.strangebuzz.com/en/snippets/modifying-array-values-with-array-map-and-an-anonymous-function
$array = [
'kikoo' => 'cat',
'foo' => 'bar',
];
$array1 = array_map(function ($value) {
return $value.$value;
}, $array);
// for simple cases, pass the PHP function name directly
$array2 = array_map('strtoupper', $array);
print_r($array1);
print_r($array2);