Geruhn/gist:6387459

## gistfile1.php
<?php
    // define the path and name of cached file
    $cachefile = 'cached-files/'.date('M-d-Y').'.php';
    // define how long we want to keep the file in seconds. I set mine to 5 hours.
    $cachetime = 18000;
    // Check if the cached file is still fresh. If it is, serve it up and exit.
    if (file_exists($cachefile) && time() - $cachetime < filemtime($cachefile)) {
    include($cachefile);
        exit;
    }
    // if there is either no file OR the file to too old, render the page and capture the HTML.
    ob_start();
?>
    <html>
        output all your html here.
    </html>
<?php
    // We're done! Save the cached content to a file
    $fp = fopen($cachefile, 'w');
    fwrite($fp, ob_get_contents());
    fclose($fp);
    // finally send browser output
    ob_end_flush();
# Little optimization tip: there’s no need to use PHP’s parser (include) because cache file will always contain only static HTML. You should replace include() with readfile() or some other.
?>
	<?php
	// define the path and name of cached file
	$cachefile = 'cached-files/'.date('M-d-Y').'.php';
	// define how long we want to keep the file in seconds. I set mine to 5 hours.
	$cachetime = 18000;
	// Check if the cached file is still fresh. If it is, serve it up and exit.
	if (file_exists($cachefile) && time() - $cachetime < filemtime($cachefile)) {
	include($cachefile);
	exit;
	}
	// if there is either no file OR the file to too old, render the page and capture the HTML.
	ob_start();
	?>
	<html>
	output all your html here.
	</html>
	<?php
	// We're done! Save the cached content to a file
	$fp = fopen($cachefile, 'w');
	fwrite($fp, ob_get_contents());
	fclose($fp);
	// finally send browser output
	ob_end_flush();
	# Little optimization tip: there’s no need to use PHP’s parser (include) because cache file will always contain only static HTML. You should replace include() with readfile() or some other.
	?>