{"id":28412,"date":"2022-08-11T12:05:21","date_gmt":"2023-03-04T19:39:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%ac%ac54%e4%b8%aaubuntu%e5%9c%a8webarena%e4%b8%8a-4\/"},"modified":"2025-08-12T08:02:07","modified_gmt":"2025-08-12T00:02:07","slug":"%e7%ac%ac54%e4%b8%aaubuntu%e5%9c%a8webarena%e4%b8%8a-4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%ac%ac54%e4%b8%aaubuntu%e5%9c%a8webarena%e4%b8%8a-4\/","title":{"rendered":"\u7b2c54\u4e2aUbuntu\u5728WebArena\u4e0a"},"content":{"rendered":"<h1>\u7b80\u800c\u8a00\u4e4b<\/h1>\n<p>\u6211\u5728webarena\u4e0a\u5c1d\u8bd5\u4e86\u4e00\u4e0bUbuntu 18.04\u3002<br \/>\n\u6211\u8bd5\u7740\u505a\u4e86\u4e00\u4e9b\u7ec3\u4e60\u9898\u3002<\/p>\n<h1>\u7ec3\u4e60\u9898<\/h1>\n<p>\u8bf7\u663e\u793a\u56fe\u50cf\u8bbf\u95ee\u8ba1\u6570\u5668\u3002<\/p>\n<h1>\u793a\u4f8b\u4ee3\u7801<\/h1>\n<pre class=\"post-pre\"><code>&lt;?php\r\n    $id = \"test\";\r\n    $db = new PDO(\"mysql:host=localhost;dbname=mydb;\", 'user', 'pass');\r\n    if (!$db)\r\n    {\r\n        print \"connect error!! &lt;br&gt;\";\r\n    }\r\n    else\r\n    {\r\n        $sql = \"UPDATE counter SET cnt = cnt + 1 WHERE id='$id'\";\r\n        $db-&gt;query($sql);\r\n        $sql = \"SELECT * FROM counter WHERE id='$id'\";\r\n        $rs = $db-&gt;query($sql);\r\n        if (!$rs)\r\n        {\r\n            print \"Error in database!! 0 &lt;br&gt;\";\r\n            print $sql;\r\n        }\r\n        else\r\n        {\r\n            $count = 0;\r\n            while ($row = $rs-&gt;fetch())\r\n            {\r\n                $count = $row['cnt'];\r\n            }\r\n            header('Content-Type: image\/gif');\r\n            $im = imagecreatetruecolor(200, 50);\r\n            $color = imagecolorallocate($im, 255, 255, 255);\r\n            imagestring($im, 5, 10, 10, $count, $color);\r\n            imagegif($im);\r\n            imagedestroy($im);\r\n        }\r\n    }\r\n?&gt;\r\n<\/code><\/pre>\n<h1>\u9879\u76ee\u7684\u6210\u679c<\/h1>\n<p>\u4ee5\u4e0a\u7684\u5185\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u800c\u8a00\u4e4b \u6211\u5728webarena\u4e0a\u5c1d\u8bd5\u4e86\u4e00\u4e0bUbuntu 18.04\u3002 \u6211\u8bd5\u7740\u505a\u4e86\u4e00\u4e9b\u7ec3\u4e60\u9898\u3002 \u7ec3\u4e60\u9898 \u8bf7\u663e\u793a\u56fe [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-28412","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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