一个简单的 PHP 访问计数器

// start at the top of the page since we start a session
session_name('mysite_hit_counter');
session_start();
//
$fn = 'hits_counter.txt';
$hits = 0;
// read current hits
if (($hits = file_get_contents($fn)) === false)
{
	$hits = 0;
}
// write one more hit
if (!isset($_SESSION['page_visited_already']))
{
	if (($fp = @fopen($fn, 'w')) !== false)
	{
		if (flock($fp, LOCK_EX))
		{
			$hits++;
			fwrite($fp, $hits, strlen($hits));
			flock($fp, LOCK_UN);
			$_SESSION['page_visited_already'] = 1;
		}
		fclose($fp);
	}
}
?>




PHP Hit Counter Example Code


Page content...

	This page has =$hits;?> hits

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