http_support

(PECL pecl_http:0.15.0-1.5.5)

http_support — Check built-in HTTP support

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.

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

Example#1 A http_support() example


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


	PHP5中文手册 http_date http_match_etag HTTP PHP Manual http_support (PECL pecl_http:0.15.0-1.5.5) http_support — Check built-in HTTP support 说明 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. 参数 `feature` feature to probe for 返回值 Returns integer, whether requested feature is supported, or a bitmask with all supported features if `feature` was omitted. 范例 Example#1 A http_support() example `<?php if (!http_support(HTTP_SUPPORT_REQUESTS)) { die("Need HTTP request support!\n"); } ?>` http_date http_match_etag HTTP PHP Manual