Detailed explanation of PHP get_headers() function_PHP tutorial

get_headers: Send the server response to the HTTP request
get_headers (string url [link format])
get_headers() returns the server HTTP request in the form of an array. If execution fails, FALSE and an error level E_WARNING will be returned.
The optional parameter is set to 1, get_headers() can analyze the response speed of the system and set the keys in the array.

Note: To use this function, you need to set allow_url_fopen = On in php.ini to use it.

The example is as follows:
$url = http://www.ite5e.com;
print_r(get_headers($url));
print_r(get_headers($url, 1));
?>

Print result:
Array

(<br>    [0] => HTTP/1.1 200 OK<br>    [1] => Connection: close<br>    [2] => Date: Tue, 16 Nov 2010 09:48:20 GMT<br>    [3] => Content-Length: 52708<br>    [4] => Content-Type: text/html<br>    [5] => Content-Location: http://www.ite5e.com/index.html<br>    [6] => Last-Modified: Tue, 16 Nov 2010 09:19:13 GMT<br>    [7] => Accept-Ranges: bytes<br>    [8] => ETag: "50d16c556f85cb1:b1f76"<br>    [9] => Server: Microsoft-IIS/6.0<br>    [10] => X-Powered-By: ASP.NET<br>)<br>Array<br>(<br>    [0] => HTTP/1.1 200 OK<br>    [Connection] => close<br>    [Date] => Tue, 16 Nov 2010 09:48:21 GMT<br>    [Content-Length] => 52708<br>    [Content-Type] => text/html<br>    [Content-Location] => http://www.ite5e.com/index.html<br>    [Last-Modified] => Tue, 16 Nov 2010 09:19:13 GMT<br>    [Accept-Ranges] => bytes<br>    [ETag] => "50d16c556f85cb1:b1f76"<br>    [Server] => Microsoft-IIS/6.0<br>    [X-Powered-By] => ASP.NET<br>)

http://www.bkjia.com/PHPjc/486068.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486068.htmlTechArticleget_headers: Send server response to HTTP request get_headers (string url [link format]) get_headers() in the form of an array Returns the server HTTP request. If the execution fails, FALSE and one will be returned...