PHP array_map()

PHP array_map() 函数

<?php
function myfunction($v)
{
return($v*$v);
}

$a=array(1,2,3,4,5);
print_r(array_map("myfunction",$a));
?>

$double = function($a) {
return $a * 2;
};
$numbers = range(1, 5);
$new_numbers = array_map($double, $numbers);
print implode(' ', $new_numbers);