php不同頁面

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$check_query = mysql_query("select S_number from ordinary_user where U_number='$UID' and U_password='$PWD' limit 1");
瀵規瘮涓

$check_query = mysql_query("select S_number from ordinary_user where U_number='{$UID}' and U_password='{$PWD}' limit 1");

$rs=mysql_query("select A_number from admin where A_number='$UID' and A_password='PWD' limit 1");

瀵規瘮涓
$rs=mysql_query("select A_number from admin where A_number='{$UID}' and A_password='{$PWD}' limit 1");

❷ php怎樣識別手機和電腦訪問分別跳轉到不同的頁面

//為true時就是手機訪問否則為PC
functionisMobile(){
//如果有HTTP_X_WAP_PROFILE則一定是移動設備
if(isset($_SERVER['HTTP_X_WAP_PROFILE']))
returntrue;

//如果via信息含有wap則一定是移動設備,部分服務商會屏蔽該信息
if(isset($_SERVER['HTTP_VIA'])){
//找不到為flase,否則為true
returnstristr($_SERVER['HTTP_VIA'],"wap")?true:false;
}
//腦殘法，判斷手機發送的客戶端標志,兼容性有待提高
if(isset($_SERVER['HTTP_USER_AGENT'])){
$clientkeywords=array('nokia','sony','ericsson','mot','samsung','htc','sgh','lg','sharp','sie-','philips','panasonic','alcatel','lenovo','iphone','ipod','blackberry','meizu','android','netfront','symbian','ucweb','windowsce','palm','operamini','operamobi','openwave','nexusone','cldc','midp','wap','mobile');
//從HTTP_USER_AGENT中查找手機瀏覽器的關鍵字
if(preg_match("/(".implode('|',$clientkeywords).")/i",strtolower($_SERVER['HTTP_USER_AGENT'])))
returntrue;
}
//協議法，因為有可能不準確，放到最後判斷
if(isset($_SERVER['HTTP_ACCEPT'])){
//如果只支持wml並且不支持html那一定是移動設備
//如果支持wml和html但是wml在html之前則是移動設備
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')))){
returntrue;
}
}
returnfalse;
}