eXeLearning .elp Parser for PHP

Simple, fast, and extension-free parser for eXeLearning project files

Features | Installation | Usage

Features

ELP Parser provides a simple and intuitive API to parse eXeLearning project files (.elp):

• Parse both version 2 and version 3 .elp files
• Extract text content from XML
• Detect file version
• Extract entire .elp file contents
• No external extensions required
• Lightweight and easy to use (less than 4 KB footprint library)
• Compatible with PHP 8.0 to PHP 8.5

For more information, visit the documentation.

Requirements

• PHP 8.0+
• Composer
• zip extension

Installation

Install the package via Composer:

composer require exelearning/elp-parser

Usage

Basic Parsing

use Exelearning\ELPParser;

try {
    // Parse an .elp file
    $parser = ELPParser::fromFile('/path/to/your/project.elp');
    
    // Get the file version
    $version = $parser->getVersion(); // Returns 2 or 3
    
    // Get metadata fields
    $title = $parser->getTitle();
    $description = $parser->getDescription();
    $author = $parser->getAuthor();
    $license = $parser->getLicense();
    $language = $parser->getLanguage();

    // Get all extracted strings
    $strings = $parser->getStrings();
    
    // Print extracted strings
    foreach ($strings as $string) {
        echo $string . "\n";
    }
} catch (Exception $e) {
    echo "Error parsing ELP file: " . $e->getMessage();
}

File Extraction

use Exelearning\ELPParser;

try {
    $parser = ELPParser::fromFile('/path/to/your/project.elp');
    
    // Extract entire .elp contents to a directory
    $parser->extract('/path/to/destination/folder');
} catch (Exception $e) {
    echo "Error extracting ELP file: " . $e->getMessage();
}

Advanced Usage

// Convert parsed data to array
$data = $parser->toArray();

// JSON serialization
$jsonData = json_encode($parser);

Error Handling

The parser includes robust error handling:

• Detects invalid .elp files
• Throws exceptions for parsing errors
• Supports both version 2 and 3 file formats

Performance

• Lightweight implementation
• Minimal memory footprint
• Fast XML parsing using native PHP extensions

Contributing

Contributions are welcome! Please submit pull requests or open issues on our GitHub repository.

License

The MIT License (MIT). Please see License File for more information.