echo $_SERVER['HTTP_USER_AGENT']; 如果服务器请求中没有包含 HTTP_USER_AGENT 头信息,上述代码就会引发“undefined index: http_user_agent”错误。 3. 分析原因 “undefined index”错误表明你试图访问一个未定义的数组索引。在PHP中,如果你尝试从一个数组中获取一个不存在的索引,PHP会发出一个通知级别的...
Notice: Undefined index: HTTP_USER_AGENT in /var/www/clients/client1/web1/web/templates/gk_sporter/libs/mobile_device_detect.php on line 4 Notice: Undefined index: HTTP_USER_AGENT in /var/www/clients/client1/web1/web/templates/gk_sporter/libs/gk.template.helper.php on line 363 ...
应该是没有定义index变量，在需要index变量之前定义一下，例如：$index = '';
“HTTP_REFERER” 链接到当前页面的前一页面的 URL 地址 必须是类似 点击某个页面的链接地址才能取到这个值 在浏览器地址栏输入url的话是无法获取$_SERVER['HTTP_REFERER']的
Undefined index: HTTP_REFERER 解决方法 错误: 解决办法: 头部i添加:error_reporting(0); 因为我想要php可以一直返回刷新页面,我在底部添加了如下: header('location: '.$_SERVER['HTTP_REFERER']); 1. 这两段代码互相解决了。
$uri = $scheme . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; Quote:PHP Notice: Undefined index: HTTP_HOST in /var/www/html/web/libraries/src/Uri/Uri.php on line 90 and code in this line : Code: $theURI = 'http' . $https . $_SERVER['HTTP_HOST'] . $_SERVER['REQUES...
[2016-04-28 23:13:19] grav.NOTICE: Invalid slug set in YAML frontmatter: => [] [] [2016-04-29 03:17:12] grav.CRITICAL: Undefined index: HTTP_USER_AGENT - Trace: #0 /home/wwwroot/kaixin/user/plugins/login/classes/Controller.php(408): Whoops\Run->handleError(8, 'Undefined index...
Looks like I had created an mu-plugins/GeoIP Blocker which also blocked anyone without a $_SERVER['HTTP_USER_AGENT'] defined. The random errors before might have been fine but the die was definitely causing the no show of data. Now I can see a whole slew of new notices. Would this ...
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HTTP_ACCEPT => /,[=> http://yfevsa1.yf-uk.local/piwik/index.php?module=CoreHome&action=index&idSite=1&period=day&date=2009-07-31,HTTP_ACCEPT_LANGUAGE => en-gb,[=> x86,HTTP_USER_AGENT => Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 3.0....