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function isMobile() { // 如果有HTTP_X_WAP_PROFILE則一定是行動裝置 if (isset ( $_SERVER [ ‘HTTP_X_WAP_PROFILE‘ ])) { return true; } // 如果via資訊含有wap則一定是行動裝置,部分服務商會屏蔽該資訊 if (isset ( $_SERVER [ ‘HTTP_VIA‘ ])) { // 找不到為flase,否則為true return stristr ( $_SERVER [ ‘HTTP_VIA‘ ], "wap" ) ? true : false; } // 腦殘法,判斷手機發送的用戶端標誌,相容性有待提高 if (isset ( $_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中尋找手機瀏覽器的關鍵字 if (preg_match( "/(" . implode( ‘|‘ , $clientkeywords ) . ")/i" , strtolower ( $_SERVER [ ‘HTTP_USER_AGENT‘ ]))) { return true; } } // 協議法,因為有可能不準確,放到最後判斷 if (isset ( $_SERVER [ ‘HTTP_ACCEPT‘ ])) { // 如果只支援wml並且不支援html那一定是行動裝置 // 如果支援wml和html但是wml在html之前則是行動裝置 if (( strpos ( $_SERVER [ ‘HTTP_ACCEPT‘ ], ‘vnd.wap.wml‘ ) !== false) && ( strpos ( $_SERVER [ ‘HTTP_ACCEPT‘ ], ‘text/html‘ ) === false || ( strpos ( $_SERVER [ ‘HTTP_ACCEPT‘ ], ‘vnd.wap.wml‘ ) < strpos ( $_SERVER [ ‘HTTP_ACCEPT‘ ], ‘text/html‘ )))) { return true; } } return false; } |