39 lines
1.1 KiB
PHP
39 lines
1.1 KiB
PHP
<?php
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// 获取传入参数
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$goods = $_GET['goods'] ?? null;
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// 检查参数是否提供
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if ($goods === null) {
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echo json_encode(["error" => "Missing required parameter: goods"]);
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exit;
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}
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// 定义目标地址
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$target_url = "http://localhost:8022/goods/flash_sale_1.php";
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// 使用 cURL 抓取页面内容
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $target_url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_TIMEOUT, 10); // 设置超时时间
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$response = curl_exec($ch);
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if (curl_errno($ch)) {
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echo json_encode(["error" => "Failed to fetch the target page"]);
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curl_close($ch);
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exit;
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}
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curl_close($ch);
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// 使用正则表达式匹配指定商品的价格
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// 根据提供的网页结构，价格在 <span id="商品ID">价格</span> 中
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$pattern = '/<span id="' . preg_quote($goods, '/') . '">(\d+)元<\/span>/';
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if (preg_match($pattern, $response, $matches)) {
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// 提取并输出价格
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echo json_encode([(int)$matches[1]]);
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} else {
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// 如果没有匹配到价格，返回提示信息
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echo json_encode(["error" => "Price not found for the specified goods"]);
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}
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?>
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