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# PerlIO::encoding

Perl 5 version 12.2 documentation
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# PerlIO::encoding

- NAME
- SYNOPSIS
- DESCRIPTION
- SEE ALSO

# NAME

PerlIO::encoding - encoding layer

# SYNOPSIS

      use PerlIO::encoding;  open($f, "<:encoding(foo)", "infoo");  open($f, ">:encoding(bar)", "outbar");  use Encode qw(:fallbacks);  $PerlIO::encoding::fallback = FB_PERLQQ;

# DESCRIPTION

This PerlIO layer opens a filehandle with a transparent encoding filter.

On input, it converts the bytes expected to be in the specified character set and encoding to Perl string data (Unicode and Perl's internal Unicode encoding, UTF-8). On output, it converts Perl string data into the specified character set and encoding.

When the layer is pushed, the current value of `$PerlIO::encoding::fallback` is saved and used as the CHECK argument when calling the Encode methods encode() and decode().

# SEE ALSO

open, Encode, binmode, perluniintro

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