http_parse_headers
(PECL pecl_http >= 0.10.0)
http_parse_headers — Parse HTTP headers
Description
array http_parse_headers
( string
$header
)Parses HTTP headers into an associative array.
Parameters
-
header -
string containing HTTP headers
Return Values
Returns an array on success or FALSE on failure.
Examples
Example #1 Using http_parse_headers()
<?php
$headers = "content-type: text/html; charset=UTF-8\r\n".
"Server: Funky/1.0\r\n".
"Set-Cookie: foo=bar\r\n".
"Set-Cookie: baz=quux\r\n".
"Folded: works\r\n\ttoo\r\n";
print_r(http_parse_headers($headers));
?>
The above example will output:
Array
(
[Content-Type] => text/html; charset=UTF-8
[Server] => Funky/1.0
[Set-Cookie] => Array
(
[0] => foo=bar
[1] => baz=quux
)
[Folded] => works
too
)
[an error occurred while processing the directive]
- http_cache_etag
- http_cache_last_modified
- http_chunked_decode
- http_deflate
- http_inflate
- http_build_cookie
- http_date
- http_get_request_body_stream
- http_get_request_body
- http_get_request_headers
- http_match_etag
- http_match_modified
- http_match_request_header
- http_support
- http_negotiate_charset
- http_negotiate_content_type
- http_negotiate_language
- ob_deflatehandler
- ob_etaghandler
- ob_inflatehandler
- http_parse_cookie
- http_parse_headers
- http_parse_message
- http_parse_params
- http_persistent_handles_clean
- http_persistent_handles_count
- http_persistent_handles_ident
- http_get
- http_head
- http_post_data
- http_post_fields
- http_put_data
- http_put_file
- http_put_stream
- http_request_body_encode
- http_request_method_exists
- http_request_method_name
- http_request_method_register
- http_request_method_unregister
- http_request
- http_redirect
- http_send_content_disposition
- http_send_content_type
- http_send_data
- http_send_file
- http_send_last_modified
- http_send_status
- http_send_stream
- http_throttle
- http_build_str
- http_build_url
Коментарии
If you don't have access to the PECL library, you can use this code to parse headers contained in strings.
Note that it's probably not as robust as the PECL version, as it only parses if the headers are separated by newlines (\n). This isn't a problem in most cases, though, as the standard suggests to use \r\n as the delimiter for headers.
HTTP response code is put into 'status'.
Any suggestions welcome!
<?
function http_parse_headers($headers=false){
if($headers === false){
return false;
}
$headers = str_replace("\r","",$headers);
$headers = explode("\n",$headers);
foreach($headers as $value){
$header = explode(": ",$value);
if($header[0] && !$header[1]){
$headerdata['status'] = $header[0];
}
elseif($header[0] && $header[1]){
$headerdata[$header[0]] = $header[1];
}
}
return $headerdata;
}
$headers = "HTTP/1.1 200 OK\r\n
Date: Tue, 08 Aug 2006 05:32:01 GMT\r\n
X-Powered-By: PHP/4.4.3-dev\r\n
Data 1: Value for Data 1\r\n
Data 2: Value for Data 2\r\n
Connection: close\r\n
Content-Type: text/html\r\n";
http_parse_headers($headers);
// OUTPUT:
array(7) {
["status"]=>
string(15) "HTTP/1.1 200 OK"
["Date"]=>
string(29) "Tue, 08 Aug 2006 05:32:01 GMT"
["X-Powered-By"]=>
string(13) "PHP/4.4.3-dev"
["Data 1"]=>
string(16) "Value for Data 1"
["Data 2"]=>
string(16) "Value for Data 2"
["Connection"]=>
string(5) "close"
["Content-Type"]=>
string(9) "text/html"
}
?>
This one works even better:
<?php
function http_parse_headers( $header )
{
$retVal = array();
$fields = explode("\r\n", preg_replace('/\x0D\x0A[\x09\x20]+/', ' ', $header));
foreach( $fields as $field ) {
if( preg_match('/([^:]+): (.+)/m', $field, $match) ) {
$match[1] = preg_replace('/(?<=^|[\x09\x20\x2D])./e', 'strtoupper("\0")', strtolower(trim($match[1])));
if( isset($retVal[$match[1]]) ) {
if (!is_array($retVal[$match[1]])) {
$retVal[$match[1]] = array($retVal[$match[1]]);
}
$retVal[$match[1]][] = $match[2];
} else {
$retVal[$match[1]] = trim($match[2]);
}
}
}
return $retVal;
}
?>
<?php
$headers = "HTTP/1.1 302 Found
Server: nginx
Date: Sat, 27 Apr 2013 08:07:57 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 976
Connection: keep-alive
X-Frame-Options: sameorigin
X-Runtime: 443
Status: 302
Cache-Control: max-age=86400
Expires: Sun, 28 Apr 2013 08:07:56 GMT
Vary: Accept-Encoding,User-Agent
Strict-Transport-Security: max-age=3600 ; includeSubDomains";
if (!function_exists('http_parse_headers')) {
function http_parse_headers ($raw_headers) {
$headers = [];
foreach (explode("\n", $raw_headers) as $i => $h) {
$h = explode(':', $h, 2);
if (isset($h[1])) {
$headers[$h[0]] = trim($h[1]);
}
}
return $headers;
}
}
var_dump(http_parse_headers($headers));
?>
array(12) {
["Server"]=>
string(5) "nginx"
["Date"]=>
string(29) "Sat, 27 Apr 2013 08:07:57 GMT"
["Content-Type"]=>
string(24) "text/html; charset=utf-8"
["Content-Length"]=>
string(3) "976"
["Connection"]=>
string(10) "keep-alive"
["X-Frame-Options"]=>
string(10) "sameorigin"
["X-Runtime"]=>
string(3) "443"
["Status"]=>
string(3) "302"
["Cache-Control"]=>
string(13) "max-age=86400"
["Expires"]=>
string(29) "Sun, 28 Apr 2013 08:07:56 GMT"
["Vary"]=>
string(26) "Accept-Encoding,User-Agent"
["Strict-Transport-Security"]=>
string(32) "max-age=3600 ; includeSubDomains"
}
if (!function_exists('http_parse_headers')) {
function http_parse_headers ($raw_headers) {
$headers = array(); // $headers = [];
foreach (explode("\n", $raw_headers) as $i => $h) {
$h = explode(':', $h, 2);
if (isset($h[1])) {
if(!isset($headers[$h[0]])) {
$headers[$h[0]] = trim($h[1]);
} else if(is_array($headers[$h[0]])) {
$tmp = array_merge($headers[$h[0]],array(trim($h[1])));
$headers[$h[0]] = $tmp;
} else {
$tmp = array_merge(array($headers[$h[0]]),array(trim($h[1])));
$headers[$h[0]] = $tmp;
}
}
}
return $headers;
}
}
Taken from function.http-parse-headers#112917 and modified to: make folded work too, return status in first key.
<?php
if (!function_exists('http_parse_headers'))
{
function http_parse_headers($raw_headers)
{
$headers = array();
$key = ''; // [+]
foreach(explode("\n", $raw_headers) as $i => $h)
{
$h = explode(':', $h, 2);
if (isset($h[1]))
{
if (!isset($headers[$h[0]]))
$headers[$h[0]] = trim($h[1]);
elseif (is_array($headers[$h[0]]))
{
// $tmp = array_merge($headers[$h[0]], array(trim($h[1]))); // [-]
// $headers[$h[0]] = $tmp; // [-]
$headers[$h[0]] = array_merge($headers[$h[0]], array(trim($h[1]))); // [+]
}
else
{
// $tmp = array_merge(array($headers[$h[0]]), array(trim($h[1]))); // [-]
// $headers[$h[0]] = $tmp; // [-]
$headers[$h[0]] = array_merge(array($headers[$h[0]]), array(trim($h[1]))); // [+]
}
$key = $h[0]; // [+]
}
else // [+]
{ // [+]
if (substr($h[0], 0, 1) == "\t") // [+]
$headers[$key] .= "\r\n\t".trim($h[0]); // [+]
elseif (!$key) // [+]
$headers[0] = trim($h[0]);trim($h[0]); // [+]
} // [+]
}
return $headers;
}
}
?>
Example:
<?php
$headers = "HTTP/1.1 200 OK\r\n".
"content-type: text/html; charset=UTF-8\r\n".
"Server: Funky/1.0\r\n".
"Set-Cookie: foo=bar\r\n".
"Set-Cookie: baz=quux\r\n".
"Folded: works\r\n\ttoo\r\n";
print_r(http_parse_headers($headers));
?>
The above example will output:
Array
(
[0] => HTTP/1.1 200 OK
[content-type] => text/html; charset=UTF-8
[Server] => Funky/1.0
[Set-Cookie] => Array
(
[0] => foo=bar
[1] => baz=quux
)
[Folded] => works
too
)
I made a small mistake in function.http-parse-headers#112986
The line
<?php
$headers[0] = trim($h[0]);trim($h[0]);
?>
Should be changed to:
<?php
$headers[0] = trim($h[0]);
?>
Hi. Rewrote a function below comments
Github: https://github.com/mr-cttr/http_parse_headers
<?php
$headers = "content-type: text/html; charset=UTF-8\r\n".
"Server: Nginx\r\n".
"set-cookie: user=\r\n\tunknown\r\n".
"set-cookie: pass=strong\r\n\tpassword\r\n".
"Set-Cookie: id=1\r\n".
"HOST:github.com";
http_parse_headers ($headers);
function http_parse_headers ($raw)
{
$k = '';
$out = [];
$exp = explode("\n", $raw);
foreach ($exp as $v) {
$exp = explode(':', $v, 2);
if (isset($exp[1])) {
/** Сonvert to 'Word-Word' */
$k = strtolower($exp[0]);
$k = preg_replace_callback('/\b[a-z]/', function ($m) { return strtoupper($m[0]); }, $k);
$value = trim($exp[1]);
if (!isset($out[$k])) $out[$k] = []; /** for in_array */
if (!in_array($value, $out[$k])) $out[$k][] = $value; /** New element in array */
} else {
$value = trim($exp[0]);
if (!empty($exp[0][0]) && $exp[0][0] == "\t") {
/** Index last element */
end($out[$k]);
$i = key($out[$k]);
$out[$k][$i] .= "\r\n\t". $value;
} elseif (!$k)
$out[0] = $value;
}
}
/** Array has only once element - convert in string */
$out = array_map(function ($v) { return count($v) < 2 ? $v[0] : $v; }, $out);
return $out;
}
?>
Old function output with error
<?php
array (size=5)
'content-type' => string 'text/html; charset=UTF-8' (length=24)
'Server' => string 'Nginx' (length=5)
'set-cookie' => string 'Array // Notice: Array to string conversion
password' (length=16)
'Set-Cookie' => string 'id=1' (length=4)
'HOST' => string 'github.com' (length=10)
?>
My function output
<?php
array (size=4)
'Content-Type' => string 'text/html; charset=UTF-8' (length=24)
'Server' => string 'Nginx' (length=5)
'Set-Cookie' =>
array (size=3)
0 => string 'user=
unknown' (length=15)
1 => string 'pass=strong
password' (length=22)
2 => string 'id=1' (length=4)
'Host' => string 'github.com' (length=10)
?>