场景：在调用第三方接口时经常需要使用到curl进行数据交互，在初次使用时遇到一些小问题，记录下来随时查阅。
封装curl相关方法便于使用，方法如下：
/** * @param $url * @param string $error * @param array|string $post * @param int $timeout * @param null $ref * @param string $ua * @param $contentType * @return bool|mixed */function xcurl($url, &$error = "", $post = array(), $timeout = 5, $ref = null, $ua = "Mozilla/5.0 (X11; Linux x86_64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre", $contentType) { ???$ch ??????????= curl_init(); ???if(!empty($ref)) { ???????curl_setopt($ch, CURLOPT_REFERER, $ref); ???} ???curl_setopt($ch, CURLOPT_AUTOREFERER, true); ???curl_setopt($ch, CURLOPT_URL, $url); ???curl_setopt($ch, CURLOPT_HEADER, 0); ???curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); ???curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); ???curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); ???curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); ???if (false !== stripos($url, "https://")) { ???????????????# https处理，不校验相关证书 ???????curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); ???????curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); ???} ???if(!empty($ua)) { ???????curl_setopt($ch, CURLOPT_USERAGENT, $ua); ???} ???if(count($post) > 0){ ???????curl_setopt($ch, CURLOPT_POST, 1); ???????curl_setopt($ch, CURLOPT_POSTFIELDS, $post); ???} ???if (‘json‘ == $contentType) { ???????curl_setopt($ch, CURLOPT_HTTPHEADER, array(‘Content-Type: application/json‘, ‘Content-Length: ‘ . strlen($post))); ???} ???$output ??????= curl_exec($ch); ???if ($output === false) { ???????$error ???= curl_error($ch); ???????curl_close($ch); ???????return false; ???} else { ???????curl_close($ch); ???????return $output; ???}}调用如下：
<?$url = ‘localhost/php/server.php‘;$error = ‘‘;$post = [ ???‘hello‘ => ‘world‘, ???‘lang‘ => ‘php‘,];$post = json_encode($post);$result = xcurl($url,$error, $post, 5, null, ‘Mozilla/5.0 (X11; Linux x86_64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre‘, ‘json‘);var_dump($result);
本地服务接受参数时遇到了问题，无论$_POST还是$_REQUEST都无法获取curl客户端发送的json，所以改用file_get_contents来获取，代码：
print_r(file_get_contents(‘php://input‘));
最终请求curl.php获取到结果为：
/code/php/curl.php:19:string
‘{"hello":"world","lang":"php"}‘ (length=30)php中使用curl来post一段json数据
原文地址：https://www.cnblogs.com/jixingke/p/8486158.html