get data with CURL and JSON - php

Question

i am trying to get data using Curl
i was trying to get best result but i got
but my goal to get specific line NOT all the lines.
see my code and please help to get the result with
"routing" AND "tot_dist" Other variables NO
here is my code
<?php
function httpPost($url,$params)
{
$postData = '';
//create name value pairs seperated by &
foreach($params as $l => $v)
{
$postData .= $l . '='.$v.'&';
}
$postData = rtrim($postData, '&');
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_POST, count($postData));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
$output=curl_exec($ch);
curl_close($ch);
return $output;
}
$params = array(
"id1" => "OOMS",
"id2" => "OOSA",
"routing" => "",
"dbid" => "2006",
"k" => "",
);
echo httpPost("http://rfinder.asalink.net/free/autoroute_rtx.php",$params);
// I WANT TO GET THE RESULT WITH ROUTING AND tot_dist ONLY LIKE THIS
//OOMS DCT KASIN DCT OOSA
//459.5
?>
This result i got
{"rc":"100","rmsg":"OK","gc_dist":459.2,"routing":"OOMS DCT KASIN DCT OOSA","tot_dist":459.5,"legs":[{"wt":"A","id":"OOMS","lat":"23.6002","lon":"58.2836","freq":"","via":"","brg":"0.0","dist":"0.0","name":"MUSCAT INTERNATIONAL"},{"wt":"W","id":"KASIN","lat":"20.3147","lon":"55.9617","freq":"","via":"DCT","brg":"214.7","dist":"235.8","name":"KASIN"},{"wt":"A","id":"OOSA","lat":"17.0387","lon":"54.0913","freq":"","via":"DCT","brg":"209.6","dist":"223.6","name":"SALALAH"}]}
but i need only "Routing" and "tot_dist"

Answer 1

Once you make a request, you will get all the data. You can then select what you need. Here is what your code should look like to select only routing and tot_dist
function httpPost($url,$params)
{
$postData = '';
//create name value pairs seperated by &
foreach($params as $l => $v)
{
$postData .= $l . '='.$v.'&';
}
$postData = rtrim($postData, '&');
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_HEADER, false);
curl_setopt(
$ch, CURLOPT_HTTPHEADER,
array(
'Accept:application/json'
)
);
curl_setopt($ch, CURLOPT_POST, count($postData));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
$output=curl_exec($ch);
curl_close($ch);
return json_decode($output,true);
}
$params = array(
"id1" => "OOMS",
"id2" => "OOSA",
"routing" => "",
"dbid" => "2006",
"k" => "",
);
$data = httpPost("http://rfinder.asalink.net/free/autoroute_rtx.php",$params);
echo $data['routing'] . "\n";
echo $data['tot_dist'] . "\n";