一个常用的通过curl发送HTTP请求的函数

function curl_get($url, $params) { ???return curl_http($url, $params, ‘GET‘);}function curl_post($url, $params) { ???return curl_http($url, $params, ‘POST‘);}function curl_http($url, $params, $method = ‘GET‘, $header = array(), $multi = false){ ???$opts = array( ???????????CURLOPT_TIMEOUT ???????=> 30, ???????????CURLOPT_RETURNTRANSFER => 1, ???????????CURLOPT_SSL_VERIFYPEER => false, ???????????CURLOPT_SSL_VERIFYHOST => false, ???????????CURLOPT_HTTPHEADER ????=> $header ???); ???/* 根据请求类型设置特定参数 */ ???switch(strtoupper($method)){ ???????case ‘GET‘: ???????????$opts[CURLOPT_URL] = $url . ‘?‘ . http_build_query($params); ???????????break; ???????case ‘POST‘: ???????????//判断是否传输文件 ???????????$params = $multi ? $params : http_build_query($params); ???????????$opts[CURLOPT_URL] = $url; ???????????$opts[CURLOPT_POST] = 1; ???????????$opts[CURLOPT_POSTFIELDS] = $params; ???????????break; ???????default: ???????????throw new Exception(‘不支持的请求方式！‘); ???} ???/* 初始化并执行curl请求 */ ???$ch = curl_init(); ???curl_setopt_array($ch, $opts); ???$data ?= curl_exec($ch); ???$error = curl_error($ch); ???curl_close($ch); ???if($error) throw new Exception(‘请求发生错误：‘ . $error); ???return ?$data;}