PHP 5, PHP 7, PHP 8
iconv_mime_decode - Decodes a MIME header field

iconv_mime_decode( string$string, [int$mode = 0], [string|null$encoding = null] ): string|false

Decodes a MIME header field.



The encoded header, as a string.


mode determines the behaviour in the event iconv_mime_decode encounters a malformed MIME header field. You can specify any combination of the following bitmasks.

Bitmasks acceptable to iconv_mime_decode
Value Constant Description
1 ICONV_MIME_DECODE_STRICT If set, the given header is decoded in full conformance with the standards defined in RFC2047. This option is disabled by default because there are a lot of broken mail user agents that don't follow the specification and don't produce correct MIME headers.
2 ICONV_MIME_DECODE_CONTINUE_ON_ERROR If set, iconv_mime_decode_headers attempts to ignore any grammatical errors and continue to process a given header.


The optional encoding parameter specifies the character set to represent the result by. If omitted or null, iconv.internal_encoding will be used.

Return Values

Returns a decoded MIME field on success, or false if an error occurs during the decoding.


Version Description
8.0.0 encoding is nullable now.

Related Functions

Example of iconv_mime_decode

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Function iconv_mime_decode:

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