我有一种感觉,这是由于安装的PHP版本不同。没有正确执行代码的服务器正在运行PHP 4.3.9版本。
这是不起作用的代码部分。
// Function to find browser name
function getBrowser() {
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version= "";
//First get the platform?
if (preg_match('/linux/i', $u_agent)) {
$platform = 'Linux';
}
elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
$platform = 'Mac';
}
elseif (preg_match('/windows|win32/i', $u_agent)) {
$platform = 'Windows';
}
// Next get the name of the useragent yes seperately and for good reason
if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))
{
$bname = 'Internet Explorer';
$ub = "MSIE";
}
elseif(preg_match('/Firefox/i',$u_agent))
{
$bname = 'Mozilla Firefox';
$ub = "Firefox";
}
elseif(preg_match('/Chrome/i',$u_agent))
{
$bname = 'Google Chrome';
$ub = "Chrome";
}
elseif(preg_match('/Safari/i',$u_agent))
{
$bname = 'Apple Safari';
$ub = "Safari";
}
elseif(preg_match('/Opera/i',$u_agent))
{
$bname = 'Opera';
$ub = "Opera";
}
elseif(preg_match('/Netscape/i',$u_agent))
{
$bname = 'Netscape';
$ub = "Netscape";
}
elseif(preg_match('/Android/i',$u_agent))
{
$bname = 'Android';
$ub = "Android";
}
elseif(preg_match('/iPad/i',$u_agent))
{
$bname = 'iPad';
$ub = "iPad";
}
elseif(preg_match('/iPhone/i',$u_agent))
{
$bname = 'iPhone';
$ub = "iPhone";
}
elseif(preg_match('/BlackBerry/i',$u_agent))
{
$bname = 'BlackBerry';
$ub = "BlackBerry";
}
// finally get the correct version number
$known = array('Version', $ub, 'other');
$pattern = '#(?<browser>' . join('|', $known) .
')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches)) {
// we have no matching number just continue
}
// see how many we have
$i = count($matches['browser']);
if ($i != 1) {
//we will have two since we are not using 'other' argument yet
//see if version is before or after the name
if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
$version= $matches['version'][0];
}
else {
$version= $matches['version'][1];
}
}
else {
$version= $matches['version'][0];
}
// check if we have a number
if ($version==null || $version=="") {$version="?";}
return array(
'userAgent' => $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
);
}
// now try it
$ua=getBrowser();
// Make browser and variables readable
$browser = $ua['name'] . " v" . $ua['version'];
$user_agent = $ua['userAgent'];
编辑:澄清,这里是输出的错误消息(感谢提醒)
警告:编译失败:第150行/var/www/vhosts/staging.xxxxxxxxx.com/httpdocs/feedback/feedback-acept.php中偏移量3处的(?<)后面有无法识别的字符
注意:未定义的索引:浏览器位于/var/www/vhosts/staging.xxxxxxxxx.com/httpdocs/feedback/feedback-acept.php的第155行
致命错误:调用第159行上/var/www/vhosts/staging.xxxxxxxxx.com/httpdocs/feedback/feedback-acept.php中的未定义函数:strripos()
谢谢你们的帮助,信息和建议都很好。
这是服务器的phpinfo()脚本在上不起作用
在没有看到实际错误的情况下很难,但我猜罪魁祸首是strripos(),它只在PHP>5上可用
更新后编辑:我猜对了。顺便说一句,在看这里的时候,我发现了这个:
致命错误:调用未定义的函数:strripos()
它的代码与您的代码非常相似,并且是一个可接受的解决方案,您可以参考SO问题(如果您觉得有用,请务必相信那里的回答者)
有一个PHP函数对您的PHP版本有效。
它被称为"get_browser",它基本上做与函数相同的事情。
http://php.net/manual/en/function.get-browser.php
检查正则表达式的delimeter集是否为#
,而不是默认设置的/
。
那是给赛前呼叫的
$pattern = '#(?<browser>' . join('|', $known) .
')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';