gistfile1.php

$project['name'] = 'test';
$project['ctype'] = 'proofreading';
$project['language_from'] = 'fr';
$project['language_to'] = 'fr';
$project['category'] = 'C003';
$project['project_briefing'] = 'Hello word';
$project['same_author_must_do_entire_project'] = 'false';
$project['language_level'] = 'basic_language_level';
$project['work_template'] = 'Default';

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true); 
curl_setopt($ch, CURLOPT_VERBOSE, true); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
curl_setopt($ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1); 

date_default_timezone_set('UTC');
$date = date('Y-m-d H:i:s');
$signature = sha1($this->secretapi.$date);

$headers = array('APIKEY: '.$this->keyapi,'DATE: '.$date, 'SIGNATURE: '.$signature);

curl_setopt($ch, CURLOPT_HTTPHEADER,  $headers );

curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,  json_encode(array('project' =>  $project)));
$url = $this->urlAPi . '/projects';
curl_setopt($ch, CURLOPT_URL, $url );
$result = curl_exec($ch);