php curl请求和获取接口数据

class ToolModel{
/**
* [http 调用接口函数]
* @Author GeorgeHao
* @param string $url [接口地址]
* @param array $params [数组 || json字符串] (GET提交方式的传入$params必须是数组),(POST 提交方式的传入 $params 必须是json字符串形式)
* @param string $method [GET\POST\DELETE\PUT]
* @param array $header [HTTP头信息]
* @param integer $timeout [超时时间]
* @return [type] [接口返回数据]
*/
public static function restCall($url, $params, $method = 'GET', $header = array(), $timeout = 10000){
// POST 提交方式的传入 $set_params 必须是字符串形式
$opts = array(
CURLOPT_TIMEOUT => $timeout,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HEADER => true,
CURLOPT_NOBODY => false,
CURLOPT_HTTPHEADER => $header
); /* 根据请求类型设置特定参数 */
switch (strtoupper($method)) {
case 'GET':
if(empty($params)){
$opts[CURLOPT_URL] = $url;
} else {
$opts[CURLOPT_URL] = $url . '?' . http_build_query($params);
}
break;
case 'POST':
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POST] = 1;
$opts[CURLOPT_POSTFIELDS] = $params;
break;
case 'UPLOAD':
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POST] = 1;
$opts[CURLOPT_POSTFIELDS] = $params;
break;

case 'DOWNLOAD':
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POSTFIELDS] = $params;
break;
case 'DELETE':
if(empty($params)){
$opts[CURLOPT_URL] = $url;
} else {
$opts[CURLOPT_URL] = $url . '?' . http_build_query($params);
}
// $opts[CURLOPT_URL] = $url;
$opts[CURLOPT_HTTPHEADER] = array("X-HTTP-Method-Override: DELETE");
$opts[CURLOPT_CUSTOMREQUEST] = 'DELETE';
$opts[CURLOPT_POSTFIELDS] = $params;
break;
case 'PUT':
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POST] = 0;
$opts[CURLOPT_CUSTOMREQUEST] = 'PUT';
$opts[CURLOPT_POSTFIELDS] = $params;
break;
default:
echo "不支持的请求方式！";
break;
} /* 初始化并执行curl请求 */
$ch = curl_init();
curl_setopt_array($ch, $opts);
$data = curl_exec($ch);
$error = curl_error($ch);
// var_dump($error);
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) != '200') {
echo "<br/>http请求错误。";
}
// 根据请求方式判断是否返回头部消息
switch (strtoupper($method)) {
case 'GET':
//除去header消息
$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$headerData = substr($data, 0, $headerSize);
$bodyData = substr($data, $headerSize);
return $bodyData;
break;
case 'POST':
//除去header消息
$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$headerData = substr($data, 0, $headerSize);
$bodyData = substr($data, $headerSize);
return $bodyData;
break;
case 'UPLOAD':
$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$headerData = substr($data, 0, $headerSize);
$bodyData = substr($data, $headerSize);
return $bodyData;
break;
case 'DOWNLOAD':
return $data;
break;
case 'DELETE':
return $data;
break;
case 'PUT':
return $data;
break;
default:
echo "不支持的请求方式！";
break;
}
return $data;
}

/**
* json数据强制转字符串类型
* @param array $array 待转换的数组
* @return string 转换后的json字符串
* @author chunkuan <urcn@qq.com>
*/
public static function json_encode_s($array){
foreach($array as &$v){
$v = (string) $v;
}
return json_encode($array);
}
}

$params["userId"]=1;
$params["pageNo"]=1;
$params["pageSize"]=20;
$jsonhttp_data = ToolModel::json_encode_s($params);
$headermsg = array(
'Content-Type:application/json;charset=UTF-8',
'Connection:Keep-Alive',
'Content-Length: ' . strlen($jsonhttp_data)
);
$a = ToolModel::restCall("http://10.6.3.141:8010/orders",$params,"GET",$headermsg,10);
$obj = json_decode($a,TRUE);
$data = $obj['data'];