- array_map: documentation ( source)
- var_dump: documentation ( source)
- array_intersect: documentation ( source)
- trim: documentation ( source)
<?php
$foo = array('white ', 'black');
$foo = array_map(
function ($n) {
return trim($n);
}
);
$bar = array('white', 'red');
$baz = array_intersect($foo, $bar);
var_dump($baz);