header_remove

(PHP 5 >= 5.3.0)

header_remove — Remove previously set headers

说明

void header_remove ([ string $name ] )

Removes an HTTP header previously set using header().

参数

name: The header name to be removed.

Note: This parameter is case-insensitive.

返回值

没有返回值。

范例

Example #1 Unsetting specific header.


<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove("X-Foo"); 
?>

以上例程的输出类似于：

X-Bar: Baz

Example #2 Unsetting all previously set headers.


<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove(); 
?>

以上例程的输出类似于：

注释

Caution

This function will remove all headers set by PHP, including cookies, session and the X-Powered-By headers.

Note:
数据头只会在SAPI支持时得到处理和输出。

参见

header() - Send a raw HTTP header
headers_sent() - Checks if or where headers have been sent

用户评论:

Saeed Khamseh (2011-02-24 11:53:15)

if you want to remove header information about php version (x-powered-by), you can use: header_remove('x-powered-by'); alternatively, if you don't have php 5.3 installed, you can do the same thing using "header" command: header('x-powered-by:'); don't forget the ':' character at the end of the string!

rwagener11 at gmail dot com (2010-07-07 15:16:05)

FYI: This function does not support an array or multiple entries header_remove(array("X-Powered-By","Expires")); // doesn't work header_remove("X-Powered-By","Expires"); // doesn't work Spent the time verifying if it was similar to the unset() command which allows. unset($a,$b);