PHP Secure Login script (PHP:SL script) is simple (core file is only 25 KB in size) single-file PHP authentication script. Whole script is written as single file, which can be very useful for developers. Even images are embedded into script’s PHP file. However, you may extend this script with some extra stuff such as CSS styles or localization with some external files. Also, user credentials can be defined within script file or in MySQL database.

This is pretty much something like phpSecurePages script, but a little bit simpler (no access levels) and with somewhat more liberal license.

There is no classic installation of this script: You just need to upload it inside folder you want to protect, and to include script’s file on very beginning of all php files in that folder… or at least those you want to protect :-)

Download PHP Secure Login script