apache_setenv()
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
设置 Apache 子进程环境变量
说明
apache_setenv(string $variable,string $value[,bool $walk_to_top= false]): bool
apache_setenv()设置由$variable指定的 Apache 环境变量值。
Note:当设置了某 Apache 环境变量,相应的$_SERVER变量不会改变。
参数
- $variable
将被设置的环境变量。
- $value
新$variable值。
- $walk_to_top
是否将所设置的顶层变量应用到所有 Apache 层。
返回值
成功时返回TRUE
,或者在失败时返回FALSE
。
范例
使用apache_setenv()设置一个 Apache 环境变量
<?php apache_setenv("EXAMPLE_VAR", "Example Value"); ?>
注释
Note:apache_setenv()可与apache_getenv()配合使用,以在不同页面间传递变量,或将 PHP 脚本中已设置变量传入 Server Side Includes(.shtml)页面。
参见
apache_getenv()
获取 Apache subprocess_env 变量
If you set a variable, either new or existing, the corresponding $_SERVER variable is not changed, and you will have to change it as well.
If you are using mod_gzip or mod_deflate to compress HTML output, you're not able to send partial file to the browser.... To disable mod_deflate in PHP (if needed), you can tell Apache with this : apache_setenv('no-gzip', '1');
When you need to set the QUERY_STRING variable into a page included with the "virtual" function do this: virtual ("some_page.shtml?$QUERY_STRING"); apache_setenv does not work for this case.
When you want to set variables to pass to Server Side Includes (.shtml) included in PHP scripts, use this.