1. Create AcsClient instance.
    $clientProfile = DefaultProfile::getProfile(
        $mps_region_id,                   # Region ID
        $access_key_id,                   # AccessKey ID
        $access_key_secret                # AccessKey Secret
    );
    $client = new DefaultAcsClient($clientProfile);
  2. Create request, and set parameters.
    $request = new Mts\SubmitJobsRequest();
    $request->setAcceptFormat('JSON');
  3. Set transcoding parameters.
    • Input
      $input = array('Location' => $oss_location,
                'Bucket' => $oss_bucket,
                'Object' => urlencode($head_object));
      $request->setInput(json_encode($input));
    • Output
      $output = array('OutputObject' => urlencode($oss_output_object));
      • Video
        $output['Video'] = array('Width' => 1280,
                         'Height' => 720);
      • MergeList
        $merge_video = array('MergeURL' => 'http://'.$oss_bucket.'.'.$oss_location.'.aliyuncs.com/'.urlencode($oss_input_object));
        $merge_tail = array('MergeURL' => 'http://'.$oss_bucket.'.'.$oss_location.'.aliyuncs.com/'.urlencode($tail_object));
        $output['MergeList'] = array($merge_video, $merge_tail);
  4. Initiate API request and display returned value.
    $response = $client->getAcsResponse($request);
    print 'RequestId is:' . $response->{'RequestId'} . "\n";;
    if ($response->{'JobResultList'}->{'JobResult'}[0]->{'Success'}) {
        print 'JobId is:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Job'}->{'JobId'} . "\n";
    } else {
        print 'SubmitJobs Failed code:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Code'} .
               ' message:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Message'} . "\n";
    }
Full codes
include_once 'aliyun-openapi-php-sdk/aliyun-php-sdk-core/Config.php';
use Mts\Request\V20140618 as Mts;
$access_key_id = 'xxx';
$access_key_secret = 'xxx';
$mps_region_id = 'cn-hangzhou';
$pipeline_id = 'xxx';
$template_id = 'S00000001-200030';
$oss_location = 'oss-cn-hangzhou';
$oss_bucket = 'xxx';
$oss_input_object = 'input.mp4';
$oss_output_object = 'output.mp4';
$head_object = 'head.mp4';
$tail_object = 'tail.mp4';
// Create a DefaultAcsClient instance and initialize it;
$clientProfile = DefaultProfile::getProfile(
    $mps_region_id,                   # Region ID
    $access_key_id,                   # AccessKey ID
    $access_key_secret                # AccessKey Secret
);
$client = new DefaultAcsClient($clientProfile);
# Create an API request and set parameters
$request = new Mts\SubmitJobsRequest();
$request->setAcceptFormat('JSON');
# Input
$input = array('Location' => $oss_location,
               'Bucket' => $oss_bucket,
               'Object' => urlencode($head_object));
$request->setInput(json_encode($input));
# Output
$output = array('OutputObject' => urlencode($oss_output_object));
# Ouput->Video
$output['Video'] = array('Width' => 1280,
                         'Height' => 720);
# Ouput->TemplateId
$output['TemplateId'] = $template_id;
# Output->MergeList
$merge_video = array('MergeURL' => 'http://'.$oss_bucket.'.'.$oss_location.'.aliyuncs.com/'.urlencode($oss_input_object));
$merge_tail = array('MergeURL' => 'http://'.$oss_bucket.'.'.$oss_location.'.aliyuncs.com/'.urlencode($tail_object));
$output['MergeList'] = array($merge_video, $merge_tail);
# Outputs
$outputs = array($output);
$request->setOUtputs(json_encode($outputs));
$request->setOutputBucket($oss_bucket);
$request->setOutputLocation($oss_location);
# PipelineId
$request->setPipelineId($pipeline_id);
# call api
try {
    $response = $client->getAcsResponse($request);
    print 'RequestId is:' . $response->{'RequestId'} . "\n";;
    if ($response->{'JobResultList'}->{'JobResult'}[0]->{'Success'}) {
        print 'JobId is:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Job'}->{'JobId'} . "\n";
    } else {
        print 'SubmitJobs Failed code:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Code'} .
               ' message:' .
               $response->{'JobResultList'}->{'JobResult'}[0]->{'Message'} . "\n";
    }
} catch(ServerException $e) {
    print 'Error: ' . $e->getErrorCode() . ' Message: ' . $e->getMessage() . "\n";
} catch(ClientException $e) {
    print 'Error: ' . $e->getErrorCode() . ' Message: ' . $e->getMessage() . "\n";
}