Decode string in MIME header field

# mb_decode_mimeheader

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_decode_mimeheader — Decode string in MIME header field

### Description

mb_decode_mimeheader(string `$string`): string

Decodes encoded-word string `string` in MIME header.

### Parameters

`string`

  The string being decoded.

### Return Values

The decoded string in internal character encoding.

### Changelog

Version | Description
--- | ---
8.3.0 | Underscores are converted to spaces as specified by » RFC 2047.

### See Also

- mb_encode_mimeheader() - Encode string for MIME header

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