The KoreLogic Expression Language Library (libklel) is a C library that provides a simple expression language that can be embedded in other programs. It does not implement a full programming language, but rather a simpler expression language called KL-EL that is designed to provide arithmetic and logic operations in situations where embedding a full programming language would be overkill. KL-EL can access functions and variables exported from the embedding program, and is statically and strongly typed, which helps ensure that expressions are valid before they are executed. The embedding API is easy to use, and the library itself is very small.
PHP Script Register, Login Users registers and logs users into a website, and shows the online users. It has options to log in with Facebook or with a Google account. It includes a "Remember" button which gives the ability to automatically log in the user on the next visit. If the user forgets the password, the script can send it by email. Each user has a personal page which contains an image uploaded by the user, the registration date, the last visit date, the number of visits/logins, and other personal data (name, pronoun, birthday, personal website, occupation, and hobby). On the personal page, the user can modify the password and the email address added to registration, then he/she will receive an email message with the new data. The script displays the total number of users, the last registered user, and the online users.
Klen-library is a program for creating electronic books. It consists of three modules, for editing books, reading books, and creating tests. It offers password protection of every book and the editing mode. The print function makes it self-sufficient, as it allows creation of books without using third-party text editors. It uses SQLite, so you don't have to install a database server. It can export to the XWB, HTML, TXT, PDF, PostScript, and RTF formats, and can import from XWB, HTML, and TXT.
Multiple Select Dropdown List with AJAX can be used to dynamically create multiple Select lists with data from a MySQL table. When the user chooses an option from the Select list, it calls an Ajax function which accesses a PHP file, which will return another Select dropdown according to the option selected.
Simple PHP Chat Script is an AJAX chatting system which does not require a database. It works with text files saved on the server, so it is fast and requires very few server resources. It can be included in both PHP or HTML files (in blogs, forums), but the server must run PHP. The script can easily be changed to be used in other languages, just by translating the texts in a single file. It can have one or more chat rooms. The user can add smiles in chat, and can format the text with Bold, Italic, an Underline.