symfony/polyfill-mbstring

Health v2 · maintenance only

Adoption not part of the score

7817 stars · 39 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A Symfony component that provides a native PHP implementation of the Mbstring extension's functions for environments where the extension is not installed. It allows code relying on multibyte string functions like mb_strlen and mb_substr to run on any PHP setup.

Use cases

• use mb_* string functions without the mbstring extension installed
• make a PHP library portable across hosts lacking mbstring
• ensure consistent multibyte string handling in a PHP package
• add mbstring compatibility shim to a legacy PHP application
• avoid hard dependency on PHP extensions in a composer package

When to choose

• you are writing a reusable PHP library that should work without the mbstring extension
• your deployment environment may lack the mbstring PHP extension
• you already use Symfony components and want consistent polyfills

When to avoid

• the mbstring extension is already installed and guaranteed on your target servers
• you need a full, high-performance implementation of all mbstring functions
• you are not working in PHP

Facets

library · maturity stable

serialization developer-tools developer-tools web-development php cross-platform polyfill mbstring shim compatibility string-handling multibyte symfony-component localization

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markdown · JSON · MCP: product_card(name="symfony/polyfill-mbstring")