Best practices for anti-shaking and anti-resubmission in PHP

Best practices for anti-shaking and anti-recurrence submission in PHP

Introduction:
When developing web applications, we often encounter some Problems with repeated submissions or triggering too quickly need to be avoided. These problems may result in unnecessary operations or excessive pressure on the server. In order to solve these problems, we can use the anti-shake and anti-resubmission methods in PHP to limit user behavior.

What is anti-shake?
Anti-shake is a method of limiting the number of operations by ignoring repeated triggers for a certain period of time. After the user triggers an operation, if the same operation is triggered again within a certain period of time, the anti-shake method will ignore the subsequent operations. This avoids performance issues caused by frequently triggering operations.

The method to achieve anti-shake is as follows:

function debounce($callback, $delay) {
    $timer = null;
    return function() use ($callback, $delay, &$timer) {
        if ($timer) {
            clearTimeout($timer);
        }
        $timer = setTimeout(function() use ($callback) {
            call_user_func_array($callback, func_get_args());
        }, $delay);
    };
}

// 使用示例：
$debouncedFunction = debounce(function() {
    // 防抖操作的具体逻辑
}, 1000);

$debouncedFunction();
$debouncedFunction();
$debouncedFunction();
// 只会执行一次 防抖操作的具体逻辑

What is anti-duplicate submission?
Anti-repeated submission refers to preventing users from submitting the same operation again after an operation has been submitted. This is usually very useful in form submission scenarios to avoid users submitting the same data multiple times, resulting in data duplication.

The method to implement anti-duplicate submission is as follows:

function preventDuplicateSubmission($formName) {
    session_start();
  
    if(isset($_SESSION[$formName]) && $_SESSION[$formName] == true){
        // 已经提交过相同的操作
        return false;
    } else {
        // 第一次提交这个操作
        $_SESSION[$formName] = true;
        return true;
    }
}

// 使用示例：
$formName = "submit_form";
if(preventDuplicateSubmission($formName)){
    // 执行表单提交操作的代码
} else {
    // 阻止重复提交的提示
    echo "请勿重复提交!";
}

Conclusion:
Anti-shaking and anti-duplicate submission are common methods to reduce unnecessary operations and protect the server. By using anti-bouncing and anti-resubmission best practices in PHP, we can avoid triggering actions repeatedly and prevent users from submitting the same form multiple times. The code examples provided above can help you implement these functions and improve the performance and user experience of your web applications. I hope these methods can be helpful to your development work.

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