实际上,我想读取搜索查询之后的内容,当它完成时。问题是URL只接受POST方法,它不采取任何行动与GET方法…

我必须在domdocument或file_get_contents()的帮助下读取所有内容。有没有什么方法可以让我用POST方法发送参数,然后通过PHP读取内容?


当前回答

你可以使用cURL:

<?php
//The url you wish to send the POST request to
$url = $file_name;

//The data you want to send via POST
$fields = [
    '__VIEWSTATE '      => $state,
    '__EVENTVALIDATION' => $valid,
    'btnSubmit'         => 'Submit'
];

//url-ify the data for the POST
$fields_string = http_build_query($fields);

//open connection
$ch = curl_init();

//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, true);
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);

//So that curl_exec returns the contents of the cURL; rather than echoing it
curl_setopt($ch,CURLOPT_RETURNTRANSFER, true); 

//execute post
$result = curl_exec($ch);
echo $result;
?>

其他回答

根据主要答案,以下是我使用的方法:

function do_post($url, $params) {
    $options = array(
        'http' => array(
            'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
            'method'  => 'POST',
            'content' => $params
        )
    );
    $result = file_get_contents($url, false, stream_context_create($options));
}

使用示例:

do_post('https://www.google-analytics.com/collect', 'v=1&t=pageview&tid=UA-xxxxxxx-xx&cid=abcdef...');

我正在寻找一个类似的问题,并找到了更好的方法来做到这一点。所以它开始了。

您可以简单地在重定向页面(例如page1.php)上放置以下行。

header("Location: URL", TRUE, 307); // Replace URL with to be redirected URL, e.g. final.php

我需要这个来重定向REST API调用的POST请求。这个解决方案能够重定向post数据以及自定义头值。

这里是参考链接。

我更喜欢这个:

function curlPost($url, $data = NULL, $headers = []) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5); //timeout in seconds
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_ENCODING, 'identity');

    
    if (!empty($data)) {
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    }

    if (!empty($headers)) {
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    }

    $response = curl_exec($ch);
    if (curl_error($ch)) {
        trigger_error('Curl Error:' . curl_error($ch));
    }

    curl_close($ch);
    return $response;
}

使用的例子:

$response=curlPost("http://my.url.com", ["myField1"=>"myValue1"], ["myFitstHeaderName"=>"myFirstHeaderValue"]);

这里只使用了一个没有cURL的命令。超级简单。

echo file_get_contents('https://www.server.com', false, stream_context_create([
    'http' => [
        'method' => 'POST',
        'header'  => "Content-type: application/x-www-form-urlencoded",
        'content' => http_build_query([
            'key1' => 'Hello world!', 'key2' => 'second value'
        ])
    ]
]));

我想补充一些关于Fred Tanrikut基于卷曲的回答的想法。我知道大部分问题已经写在上面的答案中,但我认为给出一个包括所有问题的答案是个好主意。

下面是我编写的基于curl进行HTTP-GET/POST/PUT/DELETE请求的类,只涉及响应体:

class HTTPRequester {
    /**
     * @description Make HTTP-GET call
     * @param       $url
     * @param       array $params
     * @return      HTTP-Response body or an empty string if the request fails or is empty
     */
    public static function HTTPGet($url, array $params) {
        $query = http_build_query($params); 
        $ch    = curl_init($url.'?'.$query);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, false);
        $response = curl_exec($ch);
        curl_close($ch);
        return $response;
    }
    /**
     * @description Make HTTP-POST call
     * @param       $url
     * @param       array $params
     * @return      HTTP-Response body or an empty string if the request fails or is empty
     */
    public static function HTTPPost($url, array $params) {
        $query = http_build_query($params);
        $ch    = curl_init();
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
        $response = curl_exec($ch);
        curl_close($ch);
        return $response;
    }
    /**
     * @description Make HTTP-PUT call
     * @param       $url
     * @param       array $params
     * @return      HTTP-Response body or an empty string if the request fails or is empty
     */
    public static function HTTPPut($url, array $params) {
        $query = \http_build_query($params);
        $ch    = \curl_init();
        \curl_setopt($ch, \CURLOPT_RETURNTRANSFER, true);
        \curl_setopt($ch, \CURLOPT_HEADER, false);
        \curl_setopt($ch, \CURLOPT_URL, $url);
        \curl_setopt($ch, \CURLOPT_CUSTOMREQUEST, 'PUT');
        \curl_setopt($ch, \CURLOPT_POSTFIELDS, $query);
        $response = \curl_exec($ch);
        \curl_close($ch);
        return $response;
    }
    /**
     * @category Make HTTP-DELETE call
     * @param    $url
     * @param    array $params
     * @return   HTTP-Response body or an empty string if the request fails or is empty
     */
    public static function HTTPDelete($url, array $params) {
        $query = \http_build_query($params);
        $ch    = \curl_init();
        \curl_setopt($ch, \CURLOPT_RETURNTRANSFER, true);
        \curl_setopt($ch, \CURLOPT_HEADER, false);
        \curl_setopt($ch, \CURLOPT_URL, $url);
        \curl_setopt($ch, \CURLOPT_CUSTOMREQUEST, 'DELETE');
        \curl_setopt($ch, \CURLOPT_POSTFIELDS, $query);
        $response = \curl_exec($ch);
        \curl_close($ch);
        return $response;
    }
}

改进

Using http_build_query to get the query-string out of an request-array.(you could also use the array itself, therefore see: http://php.net/manual/en/function.curl-setopt.php) Returning the response instead of echoing it. Btw you can avoid the returning by removing the line curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);. After that the return value is a boolean(true = request was successful otherwise an error occured) and the response is echoed. See: http://php.net/en/manual/function.curl-exec.php Clean session closing and deletion of the curl-handler by using curl_close. See: http://php.net/manual/en/function.curl-close.php Using boolean values for the curl_setopt function instead of using any number.(I know that any number not equal zero is also considered as true, but the usage of true generates a more readable code, but that's just my opinion) Ability to make HTTP-PUT/DELETE calls(useful for RESTful service testing)

用法示例

GET

$response = HTTPRequester::HTTPGet("http://localhost/service/foobar.php", array("getParam" => "foobar"));

POST

$response = HTTPRequester::HTTPPost("http://localhost/service/foobar.php", array("postParam" => "foobar"));

PUT

$response = HTTPRequester::HTTPPut("http://localhost/service/foobar.php", array("putParam" => "foobar"));

删除

$response = HTTPRequester::HTTPDelete("http://localhost/service/foobar.php", array("deleteParam" => "foobar"));

测试

您还可以通过使用这个简单的类来进行一些很酷的服务测试。

class HTTPRequesterCase extends TestCase {
    /**
     * @description test static method HTTPGet
     */
    public function testHTTPGet() {
        $requestArr = array("getLicenses" => 1);
        $url        = "http://localhost/project/req/licenseService.php";
        $this->assertEquals(HTTPRequester::HTTPGet($url, $requestArr), '[{"error":false,"val":["NONE","AGPL","GPLv3"]}]');
    }
    /**
     * @description test static method HTTPPost
     */
    public function testHTTPPost() {
        $requestArr = array("addPerson" => array("foo", "bar"));
        $url        = "http://localhost/project/req/personService.php";
        $this->assertEquals(HTTPRequester::HTTPPost($url, $requestArr), '[{"error":false}]');
    }
    /**
     * @description test static method HTTPPut
     */
    public function testHTTPPut() {
        $requestArr = array("updatePerson" => array("foo", "bar"));
        $url        = "http://localhost/project/req/personService.php";
        $this->assertEquals(HTTPRequester::HTTPPut($url, $requestArr), '[{"error":false}]');
    }
    /**
     * @description test static method HTTPDelete
     */
    public function testHTTPDelete() {
        $requestArr = array("deletePerson" => array("foo", "bar"));
        $url        = "http://localhost/project/req/personService.php";
        $this->assertEquals(HTTPRequester::HTTPDelete($url, $requestArr), '[{"error":false}]');
    }
}