PHP RSS to WML/HDML Converter

Legacy mobile content generator for retro mobile devices and browsers

📖 Overview

PHP scripts to convert RSS feeds into mobile-friendly formats:

• WML (Wireless Markup Language) for WAP 1.x devices
• HDML (Handheld Device Markup Language) for pre-WAP browsers

Modernized version of original 2003 codebase (RSSmanip) with:

• Security hardening
• PHP 7.4+ compatibility
• Enhanced error handling
• Multi-encoding support

✨ Features

• Feed Processing

  • RSS 2.0 full spec support
  • Auto-encoding detection (UTF-8/ISO-8859-1)
  • Content length optimization
  • HTTP compression handling

• Security

  • XML injection protection
  • SSL verification
  • Input sanitization
  • Error suppression

• Mobile Optimization

  • WML 1.1 compliant output
  • HDML 3.0 support
  • Device memory constraints awareness
  • Accesskey navigation

🛠 Requirements

Server Environment

Component	Requirement
PHP Version	7.4 or newer
Extensions	cURL, libxml, SimpleXML
Memory Limit	≥128MB
MIME Types	text/vnd.wap.wml text/x-hdml

Recommended Testing Tools

graph LR
  A[Local Dev] --> B[WinWAP Emulator]
  A --> C[Nokia Mobile Simulator]
  A --> D[Openwave SDK]
  E[Production] --> F[Real Device Testing]

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🚀 Installation

Clone repository:

  git clone https://github.com/yourusername/php-rss2wml_rss2hdml.git
  cd php-rss2wml_rss2hdml

Configure feed settings:

  // config.php
  $url = 'https://example.com/feed.rss';  // RSS source
  $max_elements = 12;                     // Optimal for 4KB limit
  $encoding = 'ISO-8859-1';               // Match feed encoding

Configure web server (Apache example):

<IfModule mod_mime.c>
  AddType text/vnd.wap.wml .wml
  AddType text/x-hdml .hdml
</IfModule>

DirectoryIndex index.php

Technical Considerations

Legacy Browser Limitations

Issue	Impact Solution
30x Redirects	Broken links	Use direct file paths
Memory Limits	Truncated content	Keep output <4KB
Encoding Mismatch	Garbled text	Test multiple encodings
Caching Issues	Stale content	Add Cache-Control: no-store

Optimization Tips

flowchart TD
  A[Start] --> B{Feed Size}
  B -->|>4KB| C[Reduce max_elements]
  B -->|OK| D[Check Encoding]
  D --> E[Validate RSS Structure]
  E --> F[Test Multiple Devices]

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