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File: readme.txt

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File: readme.txt
Role: Documentation
Content type: text/plain
Description: English readme with description and todo list
Class: HTML SQL
Parse and extract information from HTML using SQL
Author: By
Last change:
Date: 16 years ago
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htmlSQL - Version 0.5 - README --------------------------------------------------------------------- AUTHOR: Jonas John (http://www.jonasjohn.de/) DESCRIPTION: --------------------------------------------------------------------- htmlSQL is a experimental PHP class which allows you to access HTML values by an SQL like syntax. This means that you don't have to write complex functions (regular expressions) to extract specific values. The htmlSQL queries look like this: SELECT href,title FROM a WHERE $class == "list" ^ Attributes ^ ^ search query (can be empty) to return ^ ^ HTML tag to search in "*" is possible = all tags This query returns an array with all links that contain the attribute class="list". All web transfers in htmlSQL are using the awesome Snoopy class (package version 1.2.3 - URL: http://snoopy.sourceforge.net/) But for file or string queries Snoopy is not required. You find all Snoopy related documents (copyright, readme, etc) in the snoopy_data/ folder. HOW TO USE: --------------------------------------------------------------------- Just include the "snoopy.class.php" and the "htmlsql.class.php" files into your PHP scripts and look at the examples (examples/) to get an idea of how to use the htmlSQL class. It should be very simple :-) BACKGROUND / IDEA: --------------------------------------------------------------------- I had this idea while extracting some data from a website. As I realized that the algorithms and functions to extract links and other tags are often the same - I had the idea to combine all functions to an universal usable class. While drinking a coffee and thinking on that problem, I thought it would be cool to access HTML elements by using SQL. So I started creating this class... WARNING: --------------------------------------------------------------------- The eval() function is used for the WHERE statement. Make sure that all user data is checked and filtered against malicious PHP code. Never trust user input! TODO: --------------------------------------------------------------------- - enhance the HTML parser - test htmlSQL with invalid and bad HTML files - replace the ugly eval() method for the WHERE statement with an own method - more error checks - include the LIMIT function/method like in SQL LICENSE: --------------------------------------------------------------------- htmlSQL uses a modified BSD license, you find the full license text in the "htmlsql.class.php".