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Table of Contents

  • Installation
  • Usage
    • Provided Constants
    • Provided Functions

The Symfony Polyfill / Mbstring Component

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Warning: You are browsing the documentation for Symfony 4.0, which is no longer maintained.

Read the updated version of this page for Symfony 6.2 (the current stable version).

The Symfony Polyfill / Mbstring Component

This component provides a partial, native PHP implementation for the mbstring PHP extension.

Installation

1
$ composer require symfony/polyfill-mbstring

Alternatively, you can clone the https://github.com/symfony/polyfill-mbstring repository.

Note

If you install this component outside of a Symfony application, you must require the vendor/autoload.php file in your code to enable the class autoloading mechanism provided by Composer. Read this article for more details.

Usage

Once this component is installed in your application, you can use the following constants and functions, no matter if the PHP mbstring extension is installed or not in your server.

Provided Constants

  • MB_CASE_UPPER (value = 0)
  • MB_CASE_LOWER (value = 1)
  • MB_CASE_TITLE (value = 2)

Provided Functions

  • mb_check_encoding
  • mb_chr
  • mb_convert_case
  • mb_convert_encoding
  • mb_convert_variables
  • mb_decode_mimeheader
  • mb_decode_numericentity
  • mb_detect_encoding
  • mb_detect_order
  • mb_encode_mimeheader
  • mb_encode_numericentity
  • mb_encoding_aliases
  • mb_get_info
  • mb_http_input
  • mb_http_output
  • mb_internal_encoding
  • mb_language
  • mb_list_encodings
  • mb_ord
  • mb_output_handler
  • mb_parse_str
  • mb_scrub
  • mb_stripos
  • mb_stristr
  • mb_strlen
  • mb_strpos
  • mb_strrchr
  • mb_strrichr
  • mb_strripos
  • mb_strrpos
  • mb_strstr
  • mb_strtolower
  • mb_strtoupper
  • mb_strwidth
  • mb_substitute_character
  • mb_substr_count
  • mb_substr
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.
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