內容簡介
<h2>外掛簡介：</h2>
<p>ZigZag Image Captcha for Contact Form 7 為 Contact Form 7 增加了一個功能強大的基於圖像的驗證碼。該外掛生成一個安全的彎曲失真圖像驗證碼，具有背景雜訊、點、線條和隨機角度，以防止自動化機器人。</p>
<h3>問題與答案：</h3>
<ul>
<li>這個外掛提供了什麼功能？</li>
<p>該外掛提供了安全的彎曲失真驗證碼、隨機字符和隨機角度的字母、點、線條，自動刷新圖像，會話驗證，有效期計時器，會話驗證，並顯示 CF7 原生錯誤消息。</p>
<li>這個外掛如何確保安全性？</li>
<p>外掛提供安全的會話驗證，讓驗證碼失效後自動重新生成，並能避免自訂覆蓋，支持 AJAX 和非 AJAX 提交。</p>
<li>這個外掛有哪些使用方式？</li>
<p>只需將此短代碼添加到任何 Contact Form 7 表單中：[imagecaptcha* cf7_image_captcha]</p>
</ul>
外掛標籤
開發者團隊
② 後台搜尋「ZigZag Image Captcha for Contact Form 7」→ 直接安裝（推薦）
原文外掛簡介
ZigZag Image Captcha for Contact Form 7 adds a powerful, image-based captcha field designed to protect your forms from spam and bots.
The plugin generates a zig-zag distorted captcha image with background noise, dots, lines, and randomized angles — making it extremely difficult for automated bots to solve.
It integrates seamlessly with Contact Form 7, works fully with AJAX submissions, and displays native CF7 validation errors.
🔒 Features
Secure zig-zag distorted image captcha
Random characters with noise, distortion, and angled letters
One-click image refresh
Session-based secure validation
Expiration timer with auto-regeneration
Native Contact Form 7 error messages
Works with AJAX and non-AJAX forms
Lightweight and optimized
No external API required
Fully responsive and accessible
⚙️ Notes
Requires Contact Form 7 to be installed and active
No third-party services or tracking
Fully self-hosted captcha generation
How to Use
Open Contact Form 7 → Edit Form
Insert the captcha field where you want it to appear: [imagecaptcha* cf7_image_captcha]
Save the form
Done! 🎉 The captcha will automatically validate submissions
The * makes the captcha field required.
