How to set for specific directory open_basedir

You can set the open_basedir configuration option in the PHP configuration file (php.ini) to specify a specific directory for the open_basedir setting. The directive can be set to a single directory or a list of directories separated by a colon (:).

Example:

Example of setting the open_basedir configuration option in the PHP configuration file (php.ini)

open_basedir = "/var/www/html/myapp:/tmp"

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This will set open_basedir to allow access to only the /var/www/html/myapp and /tmp directories.

You can also set open_basedir on a per-directory basis using an .htaccess file in the directory you want to restrict.

Example of setting open_basedir on a per-directory basis using an .htaccess file in PHP

php_admin_value open_basedir "/var/www/html/myapp"

Note that php_admin_value in .htaccess only works with the mod_php Apache module. For modern PHP-FPM setups, you must configure open_basedir in the PHP-FPM pool configuration file (e.g., www.conf).