- print_r: documentation ( source)
- asort: documentation ( source)
<?php
$list = array(
'01' => 'Z',
'02' => 'A',
'03' => 'B',
'04' => 'C',
'05' => 'Y'
);
echo "Before sorting:\n";
print_r($list);
asort($list);
echo "\nAfter sorting:\n";
print_r($list);