№2
<?php
// Our closure
$double = function($a) {
return $a * 2;
};
// This is our range of numbers
$numbers = range(1, 5);
// Use the closure as a callback here to
// double the size of each element in our
// range
$new_numbers = array_map($double, $numbers);
print implode(' ', $new_numbers);
Источник:
www.php.net
www.php.net