php - php中的计数器重置

Question

我有一个脚本可以计算您访问页面的次数，我想做的是让计数器在它达到 5 时重置。即（从 1-5 计数）并将重置回 1。有什么想法吗？

$handle = fopen('counter.txt', 'r+');

    flock($handle, LOCK_EX);

        $total = (int) fread($handle, max(1, filesize('counter.txt')));

        $newTotal = ++$total;

        rewind($handle);

        fwrite($handle, $newTotal);

fclose($handle);

Answer 1

很简单，

您可以使用

    $handle = fopen('counter.txt', 'r+');

    flock($handle, LOCK_EX);

        $total = (int) fread($handle, max(1, filesize('counter.txt')));
        if($total==5){
            fwrite($handle, 1);
        }
        else{
        $newTotal = ++$total;

        rewind($handle);

        fwrite($handle, $newTotal);
        }
fclose($f);

Answer 2

$f = fopen('counter.txt', 'r+');
flock($f, LOCK_EX);
$total = (int) fread($f, max(1, filesize('counter.txt')));

if (isset($_POST['submit'])) {
    rewind($f);
    $total = ($total >= 5)? 1 : $total++; // Increment or reset
    fwrite($f, $total); // Write new value
}

fclose($f);