   #PHP Manual Function Reference readline recode_file

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LXXXIX. GNU Recode functions

Introduction

   This module contains an interface to the GNU Recode library. The GNU
   Recode library converts files between various coded character sets and
   surface encodings. When this cannot be achieved exactly, it may get
   rid of the offending characters or fall back on approximations. The
   library recognises or produces nearly 150 different character sets and
   is able to convert files between almost any pair. Most RFC 1345
   character sets are supported.

     Note: This extension is not available on Windows platforms.

Requirements

   You must have GNU Recode 3.5 or higher installed on your system. You
   can download the package from here.

   Warning

   The Recode library version 3.6 adds weird characters behind converted
   strings under certain circumstances. Thus it's safer to use Recode
   v3.5 or one of the available alternatives like the iconv or mbstring
   extension.

Installation

   To be able to use the functions defined in this module you must
   compile your PHP interpreter using the --with-recode[=DIR] option.

   Warning

   Crashes and startup problems of PHP may be encountered when loading
   the recode as extension after loading any extension of mysql or imap.
   Loading the recode before those extension has proved to fix the
   problem. This is due a technical problem that both the c-client
   library used by imap and recode have their own hash_lookup() function
   and both mysql and recode have their own hash_insert function.

   Warning

   The IMAP extension cannot be used in conjuction with the recode or YAZ
   extensions. This is due to the fact that they both share the same
   internal symbol.

Runtime Configuration

   This extension has no configuration directives defined in php.ini.

Resource Types

   This extension has no resource types defined.

Predefined Constants

   This extension has no constants defined.

   Table of Contents
   recode_file --  Recode from file to file according to recode request
   recode_string -- Recode a string according to a recode request
   recode -- Alias for recode_string()
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