update

app/Helpers/functions.php

@@ -125,7 +125,7 @@ if (!function_exists('get_user_distance_field')) {
             return '"未知" distance';
         }
 
-        return 'if(longitude=0 and latitude=0,"未知",round(6378.138*2*asin(sqrt(pow(sin( (' . $latitude . '*pi()/180-latitude*pi()/180)/2),2)+cos(' . $latitude . '*pi()/180)*cos(latitude*pi()/180)* pow(sin((' . $longitude . '*pi()/180-longitude*pi()/180)/2),2)))*1000)) distance';
+        return 'if(longitude=0 and latitude=0,999999999,round(6378.138*2*asin(sqrt(pow(sin( (' . $latitude . '*pi()/180-latitude*pi()/180)/2),2)+cos(' . $latitude . '*pi()/180)*cos(latitude*pi()/180)* pow(sin((' . $longitude . '*pi()/180-longitude*pi()/180)/2),2)))*1000)) distance';
 
     }
 }