http_match_request_header
http_negotiate_charset
Funções para HTTP
PHP Manual

# http_support

(PECL pecl_http >= 0.15.0)

http_support — Check built-in HTTP support

### Descrição

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.

### Parâmetros

`feature`

  feature to probe for

### Valor Retornado

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

### Exemplos

Exemplo #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
Funções para HTTP
PHP Manual