symfony/polyfill-mbstring
Polyfill Mbstring
This project is a PHP compatibility layer that implements multi-byte string functions for environments where the native Mbstring extension is not installed. It serves as a library for processing text in various character encodings to ensure consistent string handling across different servers.
The library provides a set of tools for internationalization text handling, allowing for the processing of non-English characters and diverse languages. It ensures correct string length and manipulation for text containing characters beyond the basic ASCII set.
Features
- PHP Polyfills - Replicates native C-based extension functions using pure PHP to ensure consistent behavior across environments.
- Mbstring Polyfills - Implements multi-byte string functions for environments where the native Mbstring extension is not installed.
- String Processing Libraries - Provides a comprehensive set of utilities for manipulating text strings with support for various character encodings.
- Native Function Mocking - Provides global functions that mirror the exact signature and behavior of missing native extensions.
- Unicode and Byte String Distinction - Handles the distinction and manipulation of multi-byte strings versus raw byte sequences.
- Multi-byte Offset Calculations - Provides logic to process strings by calculating byte offsets based on specific character encoding sets.
- Unicode Text Handling - Provides runtime support for processing multi-byte encoded strings and calculating character offsets for diverse languages.
- String Processing Algorithms - Implements complex string manipulation and processing algorithms for multi-byte text.
- Runtime Compatibility Layers - Provides missing system extensions to ensure code runs consistently regardless of installed server modules.
- Polyfill Function Guards - Implements guards to ensure polyfill functions are only defined if the native extension is missing.
