Query MYSQL based on extent

php_mysql_extent

//Get Coordinates From Javascript Call 
$latMin = $_GET["c1"]; 
$lonMin = $_GET["c2"]; 
$latMax = $_GET["c3"]; 
$lonMax = $_GET["c4"]; 

//Gather Coordinates Into a MySQL Polygon Geometry Type 
$bounds = "GeomFromText('POLYGON((".$lonMin." ".$latMin.",".$lonMin."," .$latMax.",".$lonMax." ".$latMax.",".$lonMax." ".$latMin.",".$lonMin." ".$latMin."))')"; 

//Database Fields 
$fields = 'ASTEXT(`SHAPE`) AS SHAPE_TEXT, dnrname AS NAME, first_coun AS COUNTY, first_code AS CODE, first_mana AS MANAGER, first_base AS BASE, first_regi AS REGION, first_desi AS DESCRIPTION, first_webl AS WEB, first_dnrp AS PERCENT_DNR, sum_gisacr AS ACREAGE, sum_gismil as MILE'; 

//If None of the Coordinate Fields are Blank, Create a Selection 
//I Should Probably Make Sure That the Variables are Numbers, But I Can Do That Later 
if ($latMax != '' AND $lonMin != '' AND $lonMax != '' AND $latMin != ''){ 
  $selection = 'WHERE Intersects(SHAPE, '.$bounds.')'; 
} 
//Perform the Query 
$query = 'SELECT '.$fields.' FROM park_points '.$selection;