Converting the DigitalGreen Farmbook API feed to GeoJSON

dgfeed.php

<?php
$dgfeed = file_get_contents('http://www.digitalgreen.org/bmgf/feed/');
$dgfeed = str_replace('feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en-us"', 'feed xmlns:georss="http://www.georss.org/georss" xmlns="http://www.w3.org/2005/Atom" xml:lang="en-us"', $dgfeed);
$xml    = simplexml_load_string($dgfeed);

# Define the georss namespace
#$site = $village->children('http://www.georss.org/georss')

# Build GeoJSON feature collection array
$geojson = array(
    'type' => 'FeatureCollection',
    'features' => array()
);

# Loop through rows to build feature arrays
foreach ($xml->entry as $village):
    $site = $village->children('http://www.georss.org/georss');
    #Weed out the sites with no geometry
    if ($site->point != 'None None') {
        $coords      = (string) $site->point;
        $coordsarray = explode(' ', $coords, 2);
        # Build features
        $feature     = array(
            'type' => 'Feature',
            'geometry' => array(
                'type' => 'Point',
                'coordinates' => 
                # return x first, then y - need to flip the input order
                    array_map('floatval', array_reverse($coordsarray))
            ),
            'properties' => array(
                'name' => (string) $village->title,
                'url' => (string) $village->link['href'],
                'id' => (string) $village->id
            )
        );
        array_push($geojson['features'], $feature);
    } else {
        continue;
    }
endforeach;

# Push GeoJSON Output
header('Content-type: application/json');
echo json_encode($geojson);
?>