同时打开页面时，在txt文件中点击计数器计数访问者 - Hits counter in txt file count visitors when open page simultaneously

Hits counter in txt file count visitors when open page simultaneously

本文关键字：计数器访问者文件 txt | 更新日期: 2023-09-26

我用这个来计算我网站的点击量:

$counter_name = "counter.txt";
$f = fopen($counter_name,"r");
$counterVal = fread($f, filesize($counter_name));
fclose($f);
$counterVal++;
$f = fopen($counter_name, "w");
fwrite($f, $counterVal);
fclose($f);

我想问一下，如果有2个或更多的访问者同时打开页面，会不会有问题?如果是，如何计算所有命中?

当(例如)100个用户同时打开页面时，文件不会被其中一个锁定吗?

非常感谢!

这可能对你有帮助:

$filename = "counter.txt";
$number = file_get_contents($filename); 
$file = fopen($filename, 'a'); 
if (flock($file, LOCK_EX)) { 
    ftruncate($file, 0);
    fwrite($file, $number+1); 
    flock($file, LOCK_UN); 
} 
fclose($file);