Mysterious .user. Is the ini file
.user.ini a mysterious thing?
Let’s see what the official says:
https://www.php.net/manual/zh/configuration.file.per-user.phpSince PHP 5.3.0 Starting from , PHP supports .htaccess style INI files on a per-directory basis. Such files are only processed by the CGI/FastCGI SAPI. This feature makes PECL's htscanner extension obsolete. If using Apache, using an .htaccess file has the same effect.
Xiaobai said he didn’t understand~
As we all know, php.ini is the core configuration file of PHP and is read when PHP starts, so are other ini files in the web directory. It can be recognized by PHP. The official also said that in addition to the main php.ini, PHP will also scan INI files in each directory, starting from the directory where the executed PHP file is located and going up to the web root directory. (specified by $_SERVER['DOCUMENT_ROOT']). If the PHP file being executed is outside the web root directory, only that directory will be scanned.
In this case, all configurations can be modified by .user.ini reconfiguration?Oh, Maga’s
You are thinking too much, the official also said:
Only those with
PHP_INI_PERDIR# in the .user.ini style INI file INI settings for ## andPHP_INI_USER modes are recognized. Xiaobai, raise your hand again, what is PHP_INI_* mode?The official says this: The range in which the configuration can be specified (https://www.php.net/manual/zh/configuration.changes.modes.php)
These modes determine when, where and whether a PHP command can be set. Each instruction in the manual has a mode to which it belongs. For example, some commands can be set in PHP scripts using ini_set(), while others can only be set in php.ini or httpd.conf.
For example, the output_buffering directive belongs toThat is to say, only PHP_INI_USER mode can be set inPHP_INI_PERDIR
, so it cannot be set with ini_set(). But the display_errors directive belongs toPHP_INI_ALL and can be set anywhere, including ini_set(). Definition of PHP_INI_* mode
模式 含义 PHP_INI_USER 可在用户脚本（例如 ini_set()）或 Windows 注册表（自 PHP 5.3 起）以及 .user.ini 中设定 PHP_INI_PERDIR 可在 php.ini，.htaccess 或 httpd.conf 中设定 PHP_INI_SYSTEM 可在 php.ini 或 httpd.conf 中设定 PHP_INI_ALL 可在任何地方设定
.user.ini
, so which configurations can be set in What about the settings in.user.ini? php.ini configuration option list (https://www.php.net/manual/zh/ini.list.php)
It’s a bit interesting, not all configurations.user.inican be modified, such as
disable_functions, upload_max_filesize. The answer to the thousand-year-old mystery is found here?
"No input file specified" appears when accessing the php page, and trying various methods to no avail. Have you begun to doubt your character, have you begun to suspect kidney failure, do you feel that you are so young? That won’t work?- In desperation, have you found a file called
.user.ini
in your website directory? In a fit of anger, you decided to delete it. Oh, yes, there is a way.What?
.user.ini - If you can’t delete it, do you feel that you are really in trouble?
[root@Tech1024]# rm -rf .user.ini rm: cannot remove ‘.user.ini’: Operation not permitted
Let’s take a look at the attributes of the file. Are you crying with joy, ah, you are finally able to do it again. Hey, Xiaobai may feel that he is not good again, why is it still "No input file specified"? Young man, don’t worry, take a look at the official website (http://php.net/manual/zh/conf... ). user_ini.cache_ttl Controls the interval between re-reading user INI files. The default is 300 seconds (5 minutes). -
......
5 difficult minutes have passed, have you cried with joy again: Hey, you can do it after all. What is the use of
Finally.user.ini?
If you are curious, please click https://lnmp.org/faq/lnmp-vhost-add-howto.html#user.ini