Cache in php

[filippo.toso]

Studiati questo codice:

<?php 

$cache_file = dirname(__FILE__) . '/cached.htm';
$cache_time = 60 * 60; // in seconds

if (is_readable($cache_file) && (filemtime($cache_file) > time() - $cache_time)) {
    include($cache_file);
    exit();
}    

function cache($content) {
    global $cache_file;
    file_put_contents($cache_file, $content);
    return $content;
}

ob_start('cache'); 

?>


Hello World! <?php echo(date("H:i:s")); ?>