- Multiple inputs may be interconnected in such way that client side events that occur on one input can trigger actions on the context of other inputs. Developers may use input interconnection support without writing Javascript code.
- Can be extended with new types of input controls plug-in classes.
- Custom input plug-in classes can be used to support for handling client site events on the server side without submitting the form or redrawing the whole form page
- Some control plug-in classes are made available:
* AJAX based form submission (without reloading the whole page)
* Auto-complete text inputs
* Select a location on a map using Google Maps API
* Calendar date input
* CAPTCHA test to prevent automated access by robots
* Linked select input to switch select options when the value of another input changes. An unlimited number of selected can be linked in cascade. Additional plug-in subclasses are provided to retrive option groups from a MySQL database or many other SQL databases using the Metabase PEAR::MDB2 PHP database abstraction layer APIs
* Manage animations that apply visual effects to the page form elements, like: fade-in, fade-out, show, hide, update content, etc..
- XHTML compliant output.
- Load submitted form field values even with register_globals option Off and strip slashes when magic_quotes_gpc option is On.
- Keyboard navigation support:
* Attachment of labels with activation keys to each form field.
* Tab navigation order index.
- Built-in server side (PHP based) and client side (Javascript 1.0 or better) field validation for:
* E-mail address
* Credit card numbers (Visa, Mastercard, American Express, Discover, Diners Club, Carte Blanche, enRoute, JCB, any of these or even determined by a select field).
* Regular expressions.
* Field not empty.
* Field equal to another (useful for password confirmation fields).
* Field different from another (useful for reminder fields that must not be equal to the actual password).
* As set (for check boxes, radio buttons and select multiple fields).
* As integer number (with range limitation).
* As floating point number (with range limitation).
* Programmer defined client and server validation functions.
- Highlight invalid fields rendering them distinct CSS styles
- Security attack prevention by optionally discarding invalid values passed in fields that could not be edited by users but may be spoofed by attackers.
- Option to define a value that, when used in a field, it is accepted without performing any of the validations defined for the field.
- Ability to stop the user from submiting a form more than once inadvertdly.
- Sub form validation (validate only smaller set of field depending on the submit button that was used).
- Composition and generation of the form HTML output with fields displayed as fully accessible or in read-only mode.
- Generation of Javascript functions (useful to set to the page ONLOAD event):
* Set the input focus to a field.
* Select the text of a field.
* Set the input focus and select the text of a field.
* Enable and disable input fields
- Automatic capitalization of the text of a field:
* Upper case.
* Lower case.
* Word initials
- Replacement of text field expressions to perform adjustments like trimming whitespace or auto-complete values based on rules defined by regular expressions
- Compose forms with templates using plain HTML files with embedded PHP code or using the Smarty template engine with a supplied pre-filter plugin
- Etc.
This class can be used to authenticate and manage user accounts stored in SQLite.
It implements several operations and display HTML forms to authenticate users and manage their account records stored in a SQLite database.
Currently it can register a new account, activate registered accounts, authenticate an user and start a session, end a logged user session, change the user password or e-mail address.
This package can be used to import data stored in CSV files into a database.
The main class can import the data into a table named by imported CSV-file name. Table in database is like image of CSV file, query "DROP TABLE IF EXISTS `<CSV-filename>`" is called before table creation!
The types of the columns and other details can be defined in a separate configuration XML file. This package comes with one class that can parse and extract the configuration details.
The import class uses an external package to provide DBMS independent access to the database in order to store the imported data.
CAPTCHA validation asking questions about pictures
This class can be used to implement a CAPTCHA validation method that asks questions about pictures to the user.
It presents several images and asks the user to answer a question related to the pictures. Only one picture is the right answers. The user has to pick the right picture to pass the validation.
The class presents the question and pictures in a form with radio buttons associated to each picture to let the user pick the right picture that answers the question.
The information about the pictures that the user picks is stored in a MySQL database.
This class implements an efficient method to manipulate hierarchical data stored in SQL databases tables by using preordered tree records.
It is a more efficient method to add, remove and retrieve data that form trees of records, than using the traditional recursive way to manage trees using only a field parent that is really mich more resource consuming as it may require the execution of many database queries. This class uses
This class lets you retrieve a complete tree structure from your database table with a single query. Only tree changes require more than one query.
This class can also use the tree record retrieval functions to generate HTML select input fields that present an hierarchy of options.
Currently, it requires the use mysqldb or sqlitedb class also available in this site, bit it could be easily adapted to use other database access classes.
Crawl pages and scrape e-mail addresses into MySQL
This class can be used to crawl Web pages and scrape e-mail addresses into a MySQL database.
It retrieves a given start Web page, follows its links to retrieve other pages and any other pages linked from those. It does not follow links with URLs that have certain file name extensions.
The class scrapes each retrieved page to extract any e-mail addresses found in those pages.
This class can be used to manipulate MySQL database table records displayed in a HTML table.
It displays a table with data from fields of a MySQL database table.
The table can display links for sort the listing by the clicked column and also to execute actions such as insert a new record, update and delete a record.
It uses AJAX to avoid reloading a page after executing each action.
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