出了点问题。我一直收到400 Bad Request但似乎无法获得任何其他错误消息。这是代码：
$locations = array("LAX", "LGW");
$dateOut = '2015-04-25';
$dateIn = '2015-04-29';
$passengers = 1;
$destinations = array("NYC","LAX","CHI","WAS","LAS","SFO","MIA","BOS","DEN","AUS");
$apiQueries = array();
foreach ($destinations as $destination) {
foreach ($locations as $origin) {
$data = array("request" => array(
"passengers" => array(
"adultCount" => $passengers
),
"slice" => array(
array(
"origin" => $origin,
"destination" => $destination,
"date" => $dateOut
),
array(
"origin" => $destination,
"destination" => $origin,
"date" => $dateIn
)
),
"solutions" => "10"
));
$apiQueries[] = json_encode($data);
}
}
$batch = '';
$boundary = '--batch_xyzabc';
$i = 0;
foreach ($apiQueries as $data) {
$batch .= "\n" . $boundary . "\nContent-Type: application/http\n\nGET /qpxExpress/v1/trips/search?key=my-unique-key" . " \n" . $data . "\n";
$i ++ ;
if ($i > 48){
// we need to split the batch by packs of <50. Close this one and create the next one
$batch .= "\n" . $boundary . "\n";
$batches[] = $batch;
$batch = '' ;
$i=0;
}
}
// close the current batch pack
if ($i > 0) $batches[] = $batch . "\n" . $boundary . "\n";
for ($i = 0 ; $i < count($batches) ; $i++) {
$session = curl_init('https://www.googleapis.com/batch');
curl_setopt($session, CURLOPT_POST, true);
curl_setopt($session, CURLOPT_HTTPHEADER, array('Host: www.googleapis.com', 'Content-Type: multipart/mixed; boundary=' . $boundary, 'Content-Length: ' . strlen( $batches[$i])));
curl_setopt($session, CURLOPT_POSTFIELDS, $batches[$i]);
curl_setopt($session, CURLOPT_HEADER, true);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
curl_setopt($session, CURLOPT_VERBOSE, true);
curl_setopt($session, CURLINFO_HEADER_OUT, true);
curl_setopt($session, CURLOPT_SSL_VERIFYPEER, false);
$resp = curl_exec($session);
echo $resp;exit; // Shows 400 Bad Request message
$api_response_info = curl_getinfo($session);
$pack_of_answers = substr($resp, $api_response_info['header_size']);
curl_close($session);
}