LV. HTTP 函数

简介

本类函数可以以低至 HTTP 协议的级别来操纵发回远端浏览器的输出。

需求

要编译本扩展模块无需外部库文件。

安装

本扩展模块作为 PHP 内核的一部分，无需安装即可使用。

运行时配置

本扩展模块在 php.ini 中未定义任何配置选项。

资源类型

本扩展模块未定义任何资源类型。

预定义常量

本扩展模块未定义任何常量。

目录
http_cache_etag -- Caching by ETag
http_cache_last_modified -- Caching by last modification
http_chunked_decode -- Decode chunked-encoded data
http_deflate -- Deflate data
http_inflate -- Inflate data
http_get_request_body_stream -- Get request body as stream
http_get_request_body -- Get request body as string
http_get_request_headers -- Get request headers as array
http_date -- Compose HTTP RFC compliant date
http_support -- Check built-in HTTP support
http_match_etag -- Match ETag
http_match_modified -- Match last modification
http_match_request_header -- Match any header
http_build_cookie -- Build cookie string
http_negotiate_charset -- Negotiate clients preferred character set
http_negotiate_content_type -- Negotiate clients preferred content type
http_negotiate_language -- Negotiate clients preferred language
ob_deflatehandler -- Deflate output handler
ob_etaghandler -- ETag output handler
ob_inflatehandler -- Inflate output handler
http_parse_cookie -- Parse HTTP cookie
http_parse_headers -- Parse HTTP headers
http_parse_message -- Parse HTTP messages
http_parse_params -- Parse parameter list
http_persistent_handles_count -- Stat persistent handles
http_persistent_handles_ident -- Get/set ident of persistent handles
http_persistent_handles_clean -- Clean up persistent handles
http_get -- Perform GET request
http_head -- Perform HEAD request
http_post_data -- Perform POST request with pre-encoded data
http_post_fields -- Perform POST request with data to be encoded
http_put_data -- Perform PUT request with data
http_put_file -- Perform PUT request with file
http_put_stream -- Perform PUT request with stream
http_request_method_exists -- Check whether request method exists
http_request_method_name -- Get request method name
http_request_method_register -- Register request method
http_request_method_unregister -- Unregister request method
http_request -- Perform custom request
http_request_body_encode -- Encode request body
http_redirect -- Issue HTTP redirect
http_send_content_disposition -- Send Content-Disposition
http_send_content_type -- Send Content-Type
http_send_data -- Send arbitrary data
http_send_file -- Send file
http_send_last_modified -- Send Last-Modified
http_send_status -- Send HTTP response status
http_send_stream -- Send stream
http_throttle -- HTTP throttling
http_build_str -- Build query string
http_build_url -- Build an URL

add a note User Contributed Notes

alan at akbkhome dot com
11-Aug-2006 04:19


Note: the Classes are Only available in PHP5, the functions however work in both PHP4 and PHP5.

henke dot andersson at comhem dot se
14-Jan-2006 09:01


If you want to make outgoing http connections with php, concider the curl extension.

woei at xs4all dot nl
30-Nov-2005 03:57


Actually, if you want to redirect a user why let HTML or JavaScript do it? Simply do this:



header("Location: http://www.example.com/");

WeeJames
07-Jul-2004 06:39


Regarding what the guy before said.  We've experienced problems where certain firewalls have encrypted the HTTP_REFERER meaning that it doesnt always contain the place you've come from.



Better to track where the user has come from either in a form post or in the url.

28-Apr-2004 02:05


in reference to toashwinisidhu's and breaker's note, a more effective way would be to use meta-tag redirect, for example.



<?php

$url = "http://somesite.com/index.php"; // target of the redirect

$delay = "3"; // 3 second delay



echo '<meta http-equiv="refresh" content="'.$delay.';url='.$url.'">';



?>



The meta goes in the head of the HTML.

This method does not require javascript and is supported by most browsers and is rarely, if ever, filterd out.

toashwinisidhu at yahoo dot com
21-Apr-2004 10:55


The method given below may not sometimes work.

The following method has always worked with me:

just put the following 3 lines in your PHP code



?>

<body onload=setTimeout("location.href='$url'",$sec)>

<?PHP

-------?>



$sec is the time in second after which the browser would automatically go to the url. Set it to 0 if you do not want to give any time.

You can use this function on the events of various html/form objects (eg.-onclick for button).eg.

<input type=button value="Go to Php.net" onclick=setTimeout("location.href='php.net'",0)>

Use this to one step back

<input type="button" value="Back" onclick=history.go(-1)>

jeffp-php at outofservice dot com
05-Jan-2001 04:37


$HTTP_RAW_POST_DATA --





You'll usually access variables from forms sent via POST method by just accessing the associated PHP global variable.





However, if your POST data is not URI encoded (i.e., custom application that's not form-based) PHP won't parse the data into nice variables for you.  You will need to use $HTTP_RAW_POST_DATA to access the raw data directly. (This should return a copy of the data given to the PHP process on STDIN; note that you wan't be able to open STDIN and read it yourself because PHP already did so itself.)

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