(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
$http_response_header — HTTP response headers
The $http_response_header array is similar to the get_headers() function. When using the HTTP wrapper, $http_response_header will be populated with the HTTP response headers. $http_response_header will be created in the local scope.
Example #1 $http_response_header example
<?php
function get_contents() {
file_get_contents("http://example.com");
var_dump($http_response_header); // variable is populated in the local scope
}
get_contents();
var_dump($http_response_header); // a call to get_contents() does not populate the variable outside the function scope
?>The above example will output something similar to:
array(9) {
[0]=>
string(15) "HTTP/1.1 200 OK"
[1]=>
string(35) "Date: Sat, 12 Apr 2008 17:30:38 GMT"
[2]=>
string(29) "Server: Apache/2.2.3 (CentOS)"
[3]=>
string(44) "Last-Modified: Tue, 15 Nov 2005 13:24:10 GMT"
[4]=>
string(27) "ETag: "280100-1b6-80bfd280""
[5]=>
string(20) "Accept-Ranges: bytes"
[6]=>
string(19) "Content-Length: 438"
[7]=>
string(17) "Connection: close"
[8]=>
string(38) "Content-Type: text/html; charset=UTF-8"
}
Warning: Undefined variable $http_response_header
NULL