symfony/polyfill-mbstring

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.

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