Warning: Undefined array key "q" in /app/pages/services/city.php on line 215

Fatal error: Uncaught TypeError: substr(): Argument #1 ($string) must be of type string, null given in /app/pages/services/city.php:215 Stack trace: #0 /app/pages/services/city.php(215): substr(NULL, 0, 80) #1 [internal function]: {closure}(Array) #2 /app/pages/services/city.php(214): array_map(Object(Closure), Array) #3 /app/index.php(272): include('/app/pages/serv...') #4 {main} thrown in /app/pages/services/city.php on line 215