Key-value array elements
<html> <head> <title>Key-value array elements</title> </head> <body> <ol> <?php $arr = array( 'version' => 10, 'OS'=> "Linux", 'os' => " Mandrake "); echo("Platform: ". $arr['OS']. $arr['os']. $arr['version']); ?> </ol> </body> </html>