PHP get_headers() 替代-php问题

PHP get_headers() alternative(PHP get_headers() 替代)

本文介绍了PHP get_headers() 替代的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我需要一个 PHP 脚本来读取每个 URL 请求的 HTTP 响应代码.

I need a PHP script that reads the HTTP response code for each URL request.

类似

$headers = get_headers($theURL);
return substr($headers[0], 9, 3);

问题是 get_headers() 函数在服务器级别被禁用，作为一项策略.所以它不起作用.

The problem is the get_headers() function is disabled at server level, as a policy.So it doesn't work.

问题是如何获取 URL 的 HTTP 响应代码?

The question is how to get the HTTP response code for a URL?

推荐答案

如果启用了 cURL，您可以使用它来获取整个标头或仅获取响应代码.以下代码将响应代码分配给 $response_code 变量:

If cURL is enabled, you can use it to get the whole header or just the response code. The following code assigns the response code to the $response_code variable:

$curl = curl_init();
curl_setopt_array( $curl, array(
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => 'http://stackoverflow.com' ) );
curl_exec( $curl );
$response_code = curl_getinfo( $curl, CURLINFO_HTTP_CODE );
curl_close( $curl );

要获取整个标头，您可以发出 HEAD 请求，如下所示:

To get the whole header you can issue a HEAD request, like this:

$curl = curl_init();
curl_setopt_array( $curl, array(
    CURLOPT_HEADER => true,
    CURLOPT_NOBODY => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => 'http://stackoverflow.com' ) );
$headers = explode( "
", curl_exec( $curl ) );
curl_close( $curl );

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