header_remove

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

header_remove删除之前设置的 HTTP 头

说明

header_remove(?string $name = null): void

删除之前用 header() 设置的 HTTP 头。

参数

name

要移除的头名称。当为 null,移除之前设置的所有 header。

注意: 参数不分大小写。

返回值

没有返回值。

更新日志

版本 说明
8.0.0 name 现在允许为 null。

示例

示例 #1 取消指定的头

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

以上示例的输出类似于:

X-Bar: Baz

示例 #2 取消之前全部指定的头

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

以上示例的输出类似于:


注释

警告

本函数会删除所有 PHP 设置的头, 包括 Cookie、Session 和 X-Powered-By

注意:

数据头只会在SAPI支持时得到处理和输出。

参见

添加备注

用户贡献的备注 4 notes

up
14
Saeed Khamseh
14 years ago
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!
up
3
Anonymous
9 years ago
expose_php is php.ini only!this won't work:ini_set('expose_php',0);works:header_remove('x-powered-by');
up
1
luis dot angelino at laweb dot com dot br
1 year ago
If you are using this:#!/usr/local/bin/phpYou can add "-q" at the end of it and the headers will be removed, beacuse header_remove will not remove "Content-type"#!/usr/local/bin/php -q
up
-3
jake at qzdesign dot co dot uk
7 years ago
When called from a command-line process, this function does nothing when passed a specific header to remove, but it does nonetheless work properly when called with no arguments to remove all headers.Thus, when unit-testing or executing in some other test harness, if the code you are testing may call `header_remove()`, with the UOPZ and XDebug extensions loaded, you could use the following in order to more effectively test that the expected headers are set [which you would do by inspecting the array returned by `xdebug_get_headers()` after running the code under test, as `headers_list()` does not work despite the headers actually being stored internally as normal]:<?phpuopz_set_return(  'header_remove',  function($name = null) {    if ($name !== null) {      $pattern = '/^' . preg_quote($name, '/') . ':/i';      $headers = array_filter(        xdebug_get_headers(),        function($header) use($pattern) {          return !preg_match($pattern, $header);        }      );    }    // This works to remove all headers, just not individual headers.    header_remove();    if ($name !== null) {      foreach ($headers as $header) {        header($header);      }    }  },  true);?>
To Top