如何从 CURL 响应中删除 HTTP 标头？

php http-headers curl

2022-08-30 09:38:51

我有一个php脚本，只返回纯文本，没有任何html。现在我想向该脚本发出cURL请求，并得到以下响应：

HTTP/1.1 200 OK
Date: Mon, 28 Feb 2011 14:21:51 GMT
Server: Apache/2.2.14 (Ubuntu)
X-Powered-By: PHP/5.2.12-nmm2
Vary: Accept-Encoding
Content-Length: 6
Content-Type: text/html

6.8320

实际的响应仅为6.8320，作为没有任何html的文本。我想通过删除标头信息从上面的响应中检索它。

我已经对脚本进行了一些缩小：

$url = $_GET['url'];

if ( !$url ) {

  // Passed url not specified.
  $contents = 'ERROR: url not specified';
  $status = array( 'http_code' => 'ERROR' );

} else if ( !preg_match( $valid_url_regex, $url ) ) {

  // Passed url doesn't match $valid_url_regex.
  $contents = 'ERROR: invalid url';
  $status = array( 'http_code' => 'ERROR' );

} else {
  $ch = curl_init( $url );

  if ( strtolower($_SERVER['REQUEST_METHOD']) == 'post' ) {
    curl_setopt( $ch, CURLOPT_POST, true );
    curl_setopt( $ch, CURLOPT_POSTFIELDS, $_POST );
  }

  curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
  curl_setopt( $ch, CURLOPT_HEADER, true );
  curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );

  curl_setopt( $ch, CURLOPT_USERAGENT, $_GET['user_agent'] ? $_GET['user_agent'] : $_SERVER['HTTP_USER_AGENT'] );

  list( $header, $contents ) = preg_split( '/([\r\n][\r\n])\\1/', curl_exec( $ch ), 2 );

  $status = curl_getinfo( $ch );

  curl_close( $ch );
}

// Split header text into an array.
$header_text = preg_split( '/[\r\n]+/', $header );

if ( true ) {
  if ( !$enable_native ) {
    $contents = 'ERROR: invalid mode';
    $status = array( 'http_code' => 'ERROR' );
  }

  // Propagate headers to response.
  foreach ( $header_text as $header ) {
    if ( preg_match( '/^(?:Content-Type|Content-Language|Set-Cookie):/i', $header ) ) {
      header( $header );
    }
  }
  print $contents;
}

任何想法我需要更改什么才能从响应中删除标头信息？

答案 1

只需设置为 false。CURLOPT_HEADER

答案 2

确保你把设置标题标志：

        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, true );
        curl_setopt($ch, CURLOPT_TIMEOUT, Constants::HTTP_TIMEOUT);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, Constants::HTTP_TIMEOUT);
        $response = curl_exec($ch);

在 curl 调用后执行此操作：

$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$headerstring = substr($response, 0, $header_size);
$body = substr($response, $header_size);

编辑：如果你想在assoc数组中有标题，添加如下内容：

    $headerArr = explode(PHP_EOL, $headerstring);
    foreach ($headerArr as $headerRow) {
        preg_match('/([a-zA-Z\-]+):\s(.+)$/',$headerRow, $matches);
        if (!isset($matches[0])) {
            continue;
        }
        $header[$matches[1]] = $matches[2];
    }

结果：print_r($header)

(
    [content-type] => application/json
    [content-length] => 2848
    [date] => Tue, 06 Oct 2020 10:29:33 GMT
    [last-modified] => Tue, 06 Oct 2020 10:17:17 GMT
)

不要忘记关闭连接curl_close($ch);