计数器重置在PHP中

Question

我有一个脚本可以计算你访问某个页面的次数，我想要做的是让计数器在每次有效时重置5. ie（从1-5开始计数）并重置为1。想法？

$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

非常简单，

您可以使用

执行此操作

    $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);