I am wanting to not echo out the comma at the end of the echo after the last row. How can I do that? Here is my code:
<?php
header("Content-type: application/json");
echo '{"points":[';
mysql_connect("localhost", "user", "password");
mysql_select_db("database");
$q = "SELECT venues.id, venues.lat, venues.lon, heat_indexes.temperature FROM venues, heat_indexes WHERE venues.id = heat_indexes.venue_id";
$res = mysql_query($q) or die(mysql_error());
while ($point = mysql_fetch_assoc($res)) {
echo $point['lat'] . "," . $point['lon'] . "," . $point['temperature'] . ",";
}
mysql_free_result($res);
echo ']}';
?>