Get email address based on email domain

/**     *  Get email address      *  @param   $email by email      *  @return  bool|string     */     public static function getemail ($email)     {          $data  = array (              ' 163.com '  =>  ' mail.163.com ',              ' vip.163.com '  =>  ' vip.163.com ',              ' 126.com '  =>  ' mail.126.com ',              ' qq.com '  =>  ' mail.qq.com ',              ' vip.qq.com '  =>  ' mail.qq.com ',              ' foxmail.com '  =>  ' mail.qq.com ',              ' gmail.com '  =>  ' mail.google.com ',              ' sohu.com '  =>  ' mail.sohu.com ',              ' tom.com '  =>  ' mail.tom.com ',              ' vip.sina.com '  =>  ' vip.sina.com ',              ' sina.com.cn '  =>  ' mail.sina.com.cn ',              ' sina.com '  =>  ' mail.sina.com.cn ',             ' yahoo.com.cn '   =>  ' mail.cn.yahoo.com ',             ' yahoo.cn '  =>  ' mail.cn.yahoo.com',             ' yeah.net '  =>  ' Www.yeah.net ',             ' 21cn.com '  =>   ' mail.21cn.com ',             ' hotmail.com '  =>  ' www.hotmail.com ',             ' Sogou.com '  =>  ' mail.sogou.com ',              ' 188.com '  =>  ' www.188.com ',              ' 139.com '  =>  ' mail.10086.cn ',              ' 189.cn '  =>  ' Webmail15.189.cn/webmail ',              ' wo.com.cn '  =>  ' Mail.wo.com.cn/smsmail ',              ' outlook.com '  =>  ' outlook.com ',              ' mail.dealmoon.com '  =>  ' exmail.qq.com ',              ' dealmoon.com '  =>  ' www.hotmail.com ',         );         $email _url = substr ( $email,  strpos ($email,  "@")  + 1);         $email _ Url = strtolower ($email _url);        if  (Isset ($data [$ Email_url])  {             $email _url =   $data [$email _url];        } else {              $email _url = false;         }        return  $email _url;    } 

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