How-to articles, tricks, and solutions about PERMISSIONS

Block direct access to a file over http but allow php script access

One way to block direct access to a file over HTTP but allow PHP script access is to use a .htaccess file in the same directory as the file.

Changing permissions via chmod at runtime errors with "Operation not permitted"

It sounds like you are trying to use the chmod command to change the permissions on a file, but you are encountering an error that says "Operation not permitted".

Execute root commands via PHP

It is generally not recommended to execute root commands via PHP, as it can pose a security risk to the system.

PHP: move_uploaded_file(): Unable to move '/

The error message typically occurs when the PHP script is trying to move an uploaded file from its temporary location to a new destination.