php 常用get post http请求

/**
     * http-GET
     * 
     */
    $url = "https://www.baidu.com";
    $params = [
        "uid"   =>  $_REQUEST["uid"],
        "token" =>  $_REQUEST["token"],
    ];
    $result = file_get_contents($url);

    function curl_file_get_contents($url){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $res = curl_exec($ch);
        curl_close($ch);
        return $res;
    }
    $result = curl_file_get_contents($url);

    /**
     * http-POST
     * 
     */
    function http_post($url, $data) {
        $postdata = http_build_query($data);
        $options = [
            'http' => [
                'method' => 'POST',
                'header' => 'Content-type:application/x-www-form-urlencoded',
                'content' => $postdata,
                'timeout' => 15 * 60
            ]
        ];
        $context = stream_context_create($options);
        $result = file_get_contents($url, false, $context);
        return $result;
    }

    function http_post2($url, $data) {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json; charset=utf-8',  
            'Content-Length:' . strlen($data))
        );
        $return_content = curl_exec($ch);
        curl_close($ch);
        return $return_content;
    }

    
    $head = [];
    $head[] = 'Timestamp:'.'1600000000';
    $head[] = 'Nonce:'.'Nonce';
    $head[] = 'Signature:'.'Signature';
    $head[] = 'Content-Type:text/plain;charset=utf-8';
    // $head[] = 'Content-Type: application/json';
    /**自定义header头信息 */
    function http_post3($url, $data, $header)
    {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); // 对认证证书来源的检查
        curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转
        curl_setopt($curl, CURLOPT_AUTOREFERER, 1); // 自动设置Referer
        curl_setopt($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求
        curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环
        curl_setopt($curl, CURLOPT_HEADER, 0); // 显示返回的Header区域内容
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header);//设置自定义header头信息
        $res = curl_exec($curl); // 执行操作
        if (curl_errno($curl)) {
            echo 'Errno'.curl_error($curl);//捕抓异常
        }
        curl_close($curl); // 关闭CURL会话
        return $res; // 返回数据，json格式
    }

    function http_post4($url, $data, $header){
        $postdata = http_build_query($data);
        $opts = array('http' =>
            array(
                'method'  => 'POST',
                'header'  => $header,
                'content' => $postdata,
                'timeout' => 30
            )
        );
        $context = stream_context_create($opts);
        $result = file_get_contents($url, false, $context);
        return $result;
    }

    function http_post5($url, $data, $headers){
        $ch = curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        if(!empty($headers)){
            curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);
        }
        curl_setopt($ch, CURLOPT_POST, 1);
        /**http_build_query 吧请求的数据转换成 k=v&k2=v2 发送请求*/
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch, CURLOPT_HEADER,0);//如果想把一个头包含在输出中，设置这个选项为一个非零值。
        curl_setopt($ch, CURLINFO_HEADER_OUT,1);
        $json = curl_exec($ch);
        curl_close($ch);
        return $json;
    }

/**其他*****/
    /**
     * 获取url
     */
    function get_app_url(){
        $scheme = $_SERVER['REQUEST_SCHEME']; //协议
        $domain = $_SERVER['HTTP_HOST']; //域名/主机
        $requestUri = $_SERVER['REQUEST_URI']; //请求参数
        $getUrl = $scheme . "://" . $domain . $requestUri;
        return $getUrl;
    }

    /**
     * 跳转指定url
     * 
     */
    header("Location:https://www.baidu.com");

    /**
     * 是否支持https判断
     */
    function is_https()
    {
        if (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off')
        {
            return TRUE;
        }
        elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https')
        {
            return TRUE;
        }
        elseif (!empty($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off')
        {
            return TRUE;
        }
        return FALSE;
    }