二维码生成器代理PHP,vps dreamhost,加拿大VPS云主机搭建,云主机多少钱一个,高防vps租用抗DNS

🗣 Wd提问: 二维码生成器代理PHP

🤖 Ai回答:
二维码生成器代理PHP实现

下面是一个完整的二维码生成器代理实现，使用PHP作为后端，前端提供简洁的用户界面。

php
<?php
// qr_proxy.php 二维码生成器代理

// 错误处理设置
error_reporting(E_ALL);
ini_set('display_errors', 1);

// 允许跨域请求（可选）
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST');
header('Content-Type: application/json');

// 引入QR码生成库 (需要先安装: composer require endroid/qr-code)
require_once 'vendor/autoload.php';

use Endroid\QrCode\Builder\Builder;
use Endroid\QrCode\Encoding\Encoding;
use Endroid\QrCode\ErrorCorrectionLevel;
use Endroid\QrCode\Label\LabelAlignment;
use Endroid\QrCode\RoundBlockSizeMode;
use Endroid\QrCode\Writer\PngWriter;

class QRCodeProxy {
private $defaultOptions = [
'size' = 300,
'margin' = 10,
'foreground_color' = '000000',
'background_color' = 'FFFFFF',
'error_correction' = 'medium', // low, medium, quartile, high
'encoding' = 'UTF-8'
];

public function generate($data, $options = []) {
try {
// 合并默认选项和用户选项
$options = array_merge($this-defaultOptions, $options);

// 验证数据
if (empty($data)) {
throw new Exception('数据内容不能为空');
}

// 构建QR码
$builder = Builder::create()
-writer(new PngWriter())
-data($data)
-encoding(new Encoding($options['encoding']))
-errorCorrectionLevel($this-getErrorCorrectionLevel($options['error_correction']))
-size($options['size'])
-margin($options['margin'])
-foregroundColor($this-hexToRgb($options['foreground_color']))
-backgroundColor($this-hexToRgb($options['background_color']));

// 添加标签（如果提供）
if (isset($options['label']) && !empty($options['label'])) {
$builder-labelText($options['label'])
-labelAlignment(LabelAlignment::Center);
}

// 生成QR码
$qrCode = $builder-build();

// 返回结果
return [
'success' = true,
'data' = base64_encode($qrCode-getString()),
'mime_type' = $qrCode-getMimeType(),
'size' = $qrCode-getSize()
];

} catch (Exception $e) {
return [
'success' = false,
'error' = $e-getMessage()
];
}
}

private function getErrorCorrectionLevel($level) {
$levels = [
'low' = ErrorCorrectionLevel::Low,
'medium' = ErrorCorrectionLevel::Medium,
'quartile' = ErrorCorrectionLevel::Quartile,
'high' = ErrorCorrectionLevel::High
];

return $levels[$level] ?? ErrorCorrectionLevel::Medium;
}

private function hexToRgb($hex) {
$hex = str_replace('', '', $hex);

if (strlen($hex) == 3) {
$r = hexdec(str_repeat(substr($hex, 0, 1), 2));
$g = hexdec(str_repeat(substr($hex, 1, 1), 2));
$b = hexdec(str_repeat(substr($hex, 2, 1), 2));
} else {
$r = hexdec(substr($hex, 0, 2));
$g = hexdec(substr($hex, 2, 2));
$b = hexdec(substr($hex, 4, 2));
}

return ['r' = $r, 'g' = $g, 'b' = $b];
}
}

// 处理请求
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$input = json_decode(file_get_contents('php://input'), true);

$data = $input['data'] ?? $_POST['data'] ?? '';
$options = $input['options'] ?? $_POST['options'] ?? [];

$proxy = new QRCodeProxy();
$result = $proxy-generate($data, $options);

echo json_encode($result);

} elseif ($_SERVER['REQUEST_METHOD'] === 'GET') {
// 提供HTML界面
?
<!DOCTYPE html
<html lang=zh-CN
<head
<meta charset=UTF-8
<meta name=viewport content=width=device-width, initial-scale=1.0
<titleQR码生成器代理</title
<style
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Arial, sans-serif; padding: 20px; background-color: f5f5f5; }
.container { max-width: 800px; margin: 0 auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
h1 { text-align: center; margin-bottom: 20px; color: 333; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: bold; }
input, textarea, select { width: 100%; padding: 8px; border: 1px solid ddd; border-radius: 4px; }
textarea { height: 100px; resize: vertical; }
button { background: 007bff; color: white; border: none; padding: 10px 15px; border-radius: 4px; cursor: pointer; width: 100%; }
button:hover { background: 0056b3; }
.result { margin-top: 20px; text-align: center; }
.qr-image { max-width: 100%; height: auto; border: 1px solid ddd; border-radius: 4px; padding: 10px; background: white; }
.error { color: red; margin-top: 10px; }
.options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 600px) { .options { grid-template-columns: 1fr; } }
</style
</head
<body
<div class=container
<h1QR码生成器代理</h1
<form id=qrForm
<div class=form-group
<label for=data要编码的内容:</label
<textarea id=data name=data placeholder=输入文本、URL或其他数据... required</textarea
</div

<div class=options
<div class=form-group
<label for=size尺寸 (像素):</label
<input type=number id=size name=size value=300 min=100 max=1000
</div

<div class=form-group
<label for=margin边距:</label
<input type=number id=margin name=margin value=10 min=0 max=50
</div

<div class=form-group
<label for=foreground_color前景色:</label
<input type=color id=foreground_color name=foreground_color value=000000
</div

<div class=form-group
<label for=background_color背景色:</label
<input type=color id=background_color name=background_color value=FFFFFF
</div

<div class=form-group
<label for=error_correction纠错级别:</label
<select id=error_correction name=error_correction
<option value=low低 (7%)</option
<option value=medium selected中 (15%)</option
<option value=quartile高 (25%)</option
<option value=high最高 (30%)</option
</select
</div

<div class=form-group
<label for=label标签文本 (可选):</label
<input type=text id=label name=label placeholder=二维码下方的标签
</div
</div

<button type=submit生成QR码</button
</form

<div class=result id=result
<! 这里将显示生成的QR码
</div
</div

<script
document.getElementById('qrForm').

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