XML Feeds
Link: http://code.google.com/apis/maps/documentation/distancematrix/#JSON
This code gets the distance, in miles, between two US Zip codes (04429 and 02135). You can substitute other origins and destinations.
PHP:
<?php | |
function curl_request($sURL,$sQueryString=null) | |
{ | |
$cURL=curl_init(); | |
curl_setopt($cURL,CURLOPT_URL,$sURL.'?'.$sQueryString); | |
curl_setopt($cURL,CURLOPT_RETURNTRANSFER, TRUE); | |
$cResponse=trim(curl_exec($cURL)); | |
curl_close($cURL); | |
return $cResponse; | |
} | |
| |
$sResponse=curl_request('http://maps.googleapis.com/maps/api/distancematrix/json', | |
'origins=04429&destinations=02135&mode=driving&units=imperial&sensor=false'); | |
$oJSON=json_decode($sResponse); | |
if ($oJSON->status=='OK') | |
$fDistanceInMiles=(float)preg_replace('/[^\d\.]/','',$oJSON->rows[0]->elements[0]->distance->text); | |
else | |
$fDistanceInMiles=0; | |
| |
echo 'Distance in Miles: '.$fDistanceInMiles.PHP_EOL; |
Notes
- The preg_replace code discards any text, other than the numeric representation of the distance.
- This was run under PHP 5.2.17, the json_decode function was introduced in version 5.2.0.
- Be sure to include the sensor input, otherwise, you will get a “REQUEST DENIED”
- Also be sure to validate and sanitize any inputs as appropriate.
Refer to the link above for additional information.
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