內容簡介
### 摘要:
Effortless QR Code Generator 是一款輕量級的 WordPress 外掛，可以使用簡單的短代碼來創建 QR 碼。此外掛使用 JavaScript 在客戶端生成 QR 碼，無需外部依賴或伺服器處理。
### 問題與答案:
1. 這個外掛的主要功能是什麼?
- **答案:** 允許使用簡單的短代碼來生成 QR 碼。
2. QR 碼的尺寸可以做怎樣的客製化調整?
- **答案:** 可以使用 "size" 參數來控制 QR 碼的尺寸，預設大小為 150 像素，最小為 50 像素，最大為 500 像素。
3. 這個外掛保護使用者隱私嗎?
- **答案:** 是的，這個外掛不會收集、儲存或傳遞任何個人資料，QR 碼完全是在使用者的瀏覽器中使用 JavaScript 生成的。
外掛標籤
開發者團隊
② 後台搜尋「EffortLess QR Code Generator」→ 直接安裝（推薦）
原文外掛簡介
Effortless QR Code Generator is a WordPress plugin that allows you to create QR codes using a simple shortcode. It supports both client-side JavaScript rendering and server-side PHP rendering.
Features
Simple shortcode: Use [effortless_qrcode url="https://example.com"] to generate QR codes
Dual rendering modes: Client-side (JavaScript) or server-side (PHP/PNG)
Developer API: Generate QR codes programmatically from your plugins/themes
Customizable size: Control QR code dimensions (100-500 pixels)
Custom colors: Set dark and light colors for the QR code
Error correction levels: Choose L, M, Q, or H
Cached PNG images: Server-rendered QR codes are cached in the uploads folder
Responsive design: QR codes adapt to different screen sizes
No external dependencies: All code is bundled locally
Privacy-friendly: No data sent to external services
Accessibility ready: Proper alt text support
Performance optimized: Scripts load only when needed
Shortcode Parameters
url – The URL to encode (required)
size – Size in pixels (default: 150, min: 100, max: 500)
color_dark – Dark color in hex format (default: #000000)
color_light – Light color in hex format (default: #ffffff)
render – Rendering mode: “client” or “server” (default: client)
ecc – Error correction level: L, M, Q, H (default: M)
alt – Alt text for accessibility (server rendering only)
class – Additional CSS class (server rendering only)
data – Arbitrary data to encode (plain text, WiFi, vCard, etc.). When set, overrides url and disables link
link – Wrap QR code in a clickable link: “yes” or “no” (default: no). Only works with URL content, ignored when data is used
title – Tooltip text shown on hover
target – Link target attribute: “_blank”, “_self”, etc. (default: _blank)
Usage Examples
Basic usage (client-side):
[effortless_qrcode url=”https://example.com”]
Server-side rendering:
[effortless_qrcode url=”https://example.com” render=”server”]
With custom size and colors:
[effortless_qrcode url=”https://example.com” size=”200″ color_dark=”#0073aa”]
Server-side with high error correction:
[effortless_qrcode url=”https://example.com” render=”server” ecc=”H” alt=”Scan me”]
PHP API for Developers
Third-party plugins and themes can generate QR codes programmatically using the Effortless_QRCode_Native class.
Basic Usage:
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}
}
?>
With Custom Options:
Display in a Template:
width="150"
height="150">
API Reference
Effortless_QRCode_Native::generate_png( $data, $size, $color_dark, $color_light, $ecc, $margin )
Generates a QR code PNG image and saves it to the WordPress uploads folder.
Parameters:
$data (string) – Required. The data to encode (URL, text, etc.)
$size (int) – Optional. Image size in pixels. Default: 150
$color_dark (string) – Optional. Hex color for dark modules. Default: ‘#000000’
$color_light (string) – Optional. Hex color for light modules. Default: ‘#ffffff’
$ecc (string) – Optional. Error correction level (L, M, Q, H). Default: ‘M’
$margin (int) – Optional. Quiet zone margin in modules. Default: 4
Returns:
Array on success with keys:
* url – Public URL to the generated PNG image
* path – Server filesystem path to the PNG file
* debug – Debug information string
Returns false on failure.
Notes:
Images are cached based on all parameters (same input = same file)
Files are stored in wp-content/uploads/effortless-qrcodes/
Requires GD library for PNG generation
Error Correction Levels
L – 7% recovery capacity (smallest QR code)
M – 15% recovery capacity (default, good balance)
Q – 25% recovery capacity
H – 30% recovery capacity (largest QR code, best for print)
Higher error correction allows the QR code to be read even if partially damaged or obscured.
Privacy
This plugin does not collect, store, or transmit any personal data. QR codes are generated locally (either in the browser or on your server).
Requirements
PHP 7.4+ with GD library (for server-side PNG generation)
WordPress 5.0+
JavaScript enabled (for client-side rendering only)
