使用php判斷浏覽器是pc還是手機

function isMobile()

{

// 如果有HTTP_X_WAP_PROFILE則一定是移動裝置

if (isset (KaTeX parse error: Double subscript at position 16: _SERVER['HTTP_X_̲WAP_PROFILE']))…_SERVER[‘HTTP_VIA’]))

{

// 找不到為flase,否則為true

return stristr(KaTeX parse error: Expected 'EOF', got '}' at position 49: …e : false; }̲ // 腦殘法，判斷…_SERVER[‘HTTP_USER_AGENT’]))

{

$clientkeywords = array (‘nokia’,

‘sony’,

‘ericsson’,

‘mot’,

‘samsung’,

‘htc’,

‘sgh’,

‘lg’,

‘sharp’,

‘sie-’,

‘philips’,

‘panasonic’,

‘alcatel’,

‘lenovo’,

‘iphone’,

‘ipod’,

‘blackberry’,

‘meizu’,

‘android’,

‘netfront’,

‘symbian’,

‘ucweb’,

‘windowsce’,

‘palm’,

‘operamini’,

‘operamobi’,

‘openwave’,

‘nexusone’,

‘cldc’,

‘midp’,

‘wap’,

‘mobile’

);

// 從HTTP_USER_AGENT中查找手機浏覽器的關鍵字

if (preg_match("/(" . implode(’|’, c l i e n t k e y w o r d s ) . " ) / i " , s t r t o l o w e r ( clientkeywords) . ")/i", strtolower( clientkeywords).")/i",strtolower(_SERVER[‘HTTP_USER_AGENT’])))

{

return true;

}

}

// 協定法，因為有可能不準确，放到最後判斷

if (isset (KaTeX parse error: Expected '}', got 'EOF' at end of input: … if ((strpos(_SERVER[‘HTTP_ACCEPT’], ‘vnd.wap.wml’) !== false) && (strpos( S E R V E R [ ′ H T T P A C C E P T ′ ] , ′ t e x t m l ′ ) = = = f a l s e ∣ ∣ ( s t r p o s ( _SERVER[&#x27;HTTP_ACCEPT&#x27;], &#x27;textml&#x27;) === false || (strpos( S​ERVER[′HTTPA​CCEPT′],′textml′)===false∣∣(strpos(_SERVER[‘HTTP_ACCEPT’], ‘vnd.wap.wml’) < strpos($_SERVER[‘HTTP_ACCEPT’], ‘textml’))))

{

return true;

}

}

return false;

}