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- Added HTTP::head($url) which sends a "HEAD" HTTP command to a server

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and returns the headers as an associative array
- Call-time pass-by-reference fixes
This commit is contained in:
Tomas V.V.Cox 2002-01-11 01:51:24 +00:00
parent 3c0d0b351e
commit e5898af98c
1 changed files with 54 additions and 2 deletions
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56
pear/HTTP.php
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@ -82,7 +82,7 @@ class HTTP {
if (isset($HTTP_SERVER_VARS['HTTP_ACCEPT_LANGUAGE'])) {
$accepted = split(',[[:space:]]*', $HTTP_ACCEPT_LANGUAGE);
for ($i = 0; $i < count($accepted); $i++) {
if (eregi('^([a-z]+);[[:space:]]*q=([0-9\.]+)', $accepted[$i], &$arr)) {
if (eregi('^([a-z]+);[[:space:]]*q=([0-9\.]+)', $accepted[$i], $arr)) {
$q = (double)$arr[2];
$l = $arr[1];
} else {
@ -107,7 +107,7 @@ class HTTP {
/* Check for a valid language code in the top-level domain of
* the client's host address.
*/
if (ereg("\.[^\.]+$", $HTTP_SERVER_VARS['REMOTE_HOST'], &$arr)) {
if (ereg("\.[^\.]+$", $HTTP_SERVER_VARS['REMOTE_HOST'], $arr)) {
$lang = strtolower($arr[1]);
if (!empty($supported[$lang])) {
return $lang;
@ -116,5 +116,57 @@ class HTTP {
return $default;
}
/**
* Sends a "HEAD" HTTP command to a server and returns the headers
* as an associative array. Example output could be:
* Array
* (
* [response_code] => 200 // The HTTP response code
* [response] => HTTP/1.1 200 OK // The full HTTP response string
* [Date] => Fri, 11 Jan 2002 01:41:44 GMT
* [Server] => Apache/1.3.20 (Unix) PHP/4.1.1
* [X-Powered-By] => PHP/4.1.1
* [Connection] => close
* [Content-Type] => text/html
* )
*
* @param string $url A valid url, for ex: http://pear.php.net/credits.php
* @return mixed Assoc array or PEAR error on no conection
*
* @author Tomas V.V.Cox <cox@idecnet.com>
*/
function head($url)
{
$purl = parse_url($url);
$port = (isset($purl['port'])) ? $purl['port'] : 80;
$fp = fsockopen($purl['host'], $port, $errno, $errstr, 10);
if (!$fp) {
return PEAR::raiseError("HTTP::head Error $errstr ($erno)");
}
$path = (!empty($purl['path'])) ? $purl['path'] : '/';
fputs($fp, "HEAD $path HTTP/1.0\r\n");
fputs($fp, "Host: " . $purl['host'] . "\r\n\r\n");
$response = rtrim(fgets($fp, 4096));
if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|", $response, $status)) {
$headers['response_code'] = $status[1];
}
$headers['response'] = $response;
while ($line = fgets($fp, 4096)) {
if (!trim($line)) {
break;
}
if (($pos = strpos($line, ':')) !== false) {
$header = substr($line, 0, $pos);
$value = trim(substr($line, $pos + 1));
$headers[$header] = $value;
}
}
fclose($fp);
return $headers;
}
}
?>