title: Querying within longitude and latitude in MySQL
body: <p>Before asking for specific code examples, I just wanted to ask whether it is possible to make a query something like this pseudo code:</p>
  
  <p>select items from table where lat/lon = -within x miles of a certain lat/lon point-</p>
  
  <p>Is that doable? Or do I have to jump through some hoops?
  Any good approaches that could be recommended would be great!</p>