HTTP 函数
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http_date

(PECL pecl_http >= 0.1.0)

http_date — Compose HTTP RFC compliant date

说明

string http_date ([ int $timestamp ] )

Compose a valid HTTP date regarding RFC 1123 looking like: Wed, 22 Dec 2004 11:34:47 GMT.

参数

timestamp

Unix timestamp; current time if omitted

返回值

Returns the HTTP date as string.

参见

HTTP 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: Compose HTTP RFC compliant date

用户评论:

joshsnyder at earthlink dot net (21-Sep-2008 12:41)

Not sure if this is a failure of documentation or a bug, but it is worth noting that this function seems to return the timestamp of the script execution by default, not the current time. So e.g. this:

<?php

echo http_date();
sleep(60);
echo http_date();

?>

will output the exact same string twice.