获取标头响应代码 [英] Getting header response code

问题描述

这是我整理的PHP脚本的一部分。基本上，域（$ domain1）在表单中定义，并根据服务器的响应代码显示不同的消息。但是，我遇到了让它运转的问题。 3位数的响应代码是我感兴趣的。

This is part of a PHP script I am putting together. Basically a domain ($domain1) is defined in a form and a different message is displayed, based on the response code from the server. However, I am having issues getting it to work. The 3 digit response code is all I am interested in.

这是我到目前为止所拥有的：

Here is what I have so far:

function get_http_response_code($domain1) {
    $headers = get_headers($domain1);
    return substr($headers[0], 9, 3);
    foreach ($get_http_response_code as $gethead) { 
        if ($gethead == 200) {
            echo "OKAY!";
        } else {
            echo "Nokay!";
        }
    }
}

推荐答案

$domain1 = 'http://google.com';

function get_http_response_code($domain1) {
  $headers = get_headers($domain1);
  return substr($headers[0], 9, 3);
}

$get_http_response_code = get_http_response_code($domain1);

if ( $get_http_response_code == 200 ) {
  echo "OKAY!";
} else {
  echo "Nokay!";
}

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