Discuz browserversion函数 检测浏览器版本
//返回浏览器版本
function browserversion($type) {
static $return = array();
static $types = array('ie' => 'msie', 'firefox' => '', 'chrome' => '', 'opera' => '', 'safari' => '', 'mozilla' => '', 'webkit' => '', 'maxthon' => '', 'qq' => 'qqbrowser');
if(!$return) {
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
$other = 1;
foreach($types as $i => $v) {
$v = $v ? $v : $i;
if(strpos($useragent, $v) !== false) {
preg_match('/'.$v.'(\/|\s)([\d\.]+)/i', $useragent, $matches);
$ver = $matches;
$other = $ver !== 0 && $v != 'mozilla' ? 0 : $other;
} else {
$ver = 0;
}
$return[$i] = $ver;
}
$return['other'] = $other;
}
return $return[$type];
}
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