http_match_request_header
http_negotiate_charset
HTTP Functions
PHP Manual

# http_support

(PECL pecl_http:0.15.0-1.5.5)

http_support — Check built-in HTTP support

### Description

int http_support ([ int `$feature = 0` ] )

Check for features that require external libraries.

See the feature support constants table for possible values for the `feature` argument.

### Parameters

`feature`

  feature to probe for

### Return Values

Returns integer, whether requested feature is supported, or a bitmask with all supported features if `feature` was omitted.

### Examples

Example#1 A http_support() example

`<?php
if (!http_support(HTTP_SUPPORT_REQUESTS)) {
die("Need HTTP request support!\n");
}
?>`

http_match_request_header
http_negotiate_charset
HTTP Functions
PHP Manual