Pass a php call to javascript variable? [closed]

There are many ways you could do this. Here are a few options:

(Note: For purposes of demonstration, these examples assume that your PHP script returns the GeoJSON Spec Example Code.)

• AJAX: For doing AJAX calls, I recommend using a library, like jQuery, because it means you don't have to worry about all of the peculiarities of different browser versions. If you use jQuery, the function you need to use is $.getJSON() (see docs for more examples). Your call might look like this:

  var path = http://localhost/conn.php?geotable=INFR&geomfield=the_geom&srid=&fields=&parameters=&orderby=&sort=&limit=&offset=
  
  var result;
  $.getJSON(path, function(data) {
      result = data;
  });
  

  This will receive the GeoJSON data from the server and copy it to the result variable.

• If you can modify the server-side script, the easiest way to do what you want is probably with JSONP. Modify the PHP code on the server so it takes a callback parameter and returns the JSON data wrapped inside a function with that name. For example, if you set callback=process, the server will return the following:

  process(
      { "type": "FeatureCollection",
        "features": [
          { "type": "Feature",
            "geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
            "properties": {"prop0": "value0"}
            },
      .....
      }
  );
  

  (Note that this is exactly the same data as the sample linked above, just with process( before it and ); after it.)

  All you need to get the data is some code like this:

  <script>
      var result;
      function process(received) {
          result = data;
      }
  </script>
  <script src="http://localhost/conn.php?callback=process&geotable=INFR&geomfield=the_geom&srid=&fields=&parameters=&orderby=&sort=&limit=&offset="></script>
  

If you want your GET variables available in javascript you could do something like this.

<script>
<?php 
echo 'var phpData = ' . json_encode($_GET);
?>
</script>

Make sure this code is before the part where you start using your javascript. You can call your variable in javascript like this:

phpData.var

For example this part of your get ?geotable=INFR would be called in javascript using phpData.geotable

Hope this helps you out.