Viewing file:  charset_conversion.lib.php (3.33 KB) -rw-r--r--
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Charset conversion functions.
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
define('PMA_CHARSET_NONE', 0);
define('PMA_CHARSET_ICONV', 1);
define('PMA_CHARSET_RECODE', 2);
define('PMA_CHARSET_ICONV_AIX', 3);
define('PMA_CHARSET_MB', 4);
if (! isset($GLOBALS['cfg']['RecodingEngine'])) {
$GLOBALS['cfg']['RecodingEngine'] = '';
}
// Finally detect which function we will use:
if ($GLOBALS['cfg']['RecodingEngine'] == 'iconv') {
if (@function_exists('iconv')) {
$PMA_recoding_engine = PMA_getIconvRecodingEngine();
} else {
$PMA_recoding_engine = PMA_CHARSET_NONE;
PMA_warnMissingExtension('iconv');
}
} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'recode') {
if (@function_exists('recode_string')) {
$PMA_recoding_engine = PMA_CHARSET_RECODE;
} else {
$PMA_recoding_engine = PMA_CHARSET_NONE;
PMA_warnMissingExtension('recode');
}
} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'mb') {
if (@function_exists('mb_convert_encoding')) {
$PMA_recoding_engine = PMA_CHARSET_MB;
} else {
$PMA_recoding_engine = PMA_CHARSET_NONE;
PMA_warnMissingExtension('mbstring');
}
} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'auto') {
if (@function_exists('iconv')) {
$PMA_recoding_engine = PMA_getIconvRecodingEngine();
} elseif (@function_exists('recode_string')) {
$PMA_recoding_engine = PMA_CHARSET_RECODE;
} elseif (@function_exists('mb_convert_encoding')) {
$PMA_recoding_engine = PMA_CHARSET_MB;
} else {
$PMA_recoding_engine = PMA_CHARSET_NONE;
}
} else {
$PMA_recoding_engine = PMA_CHARSET_NONE;
}
/* Load AIX iconv wrapper if needed */
if ($PMA_recoding_engine == PMA_CHARSET_ICONV_AIX) {
include_once './libraries/iconv_wrapper.lib.php';
}
/**
* Determines the correct recoding engine to use
*
* @return int $PMA_recoding_engine
*
* @access public
*
*/
function PMA_getIconvRecodingEngine()
{
if ((@stristr(PHP_OS, 'AIX'))
&& (@strcasecmp(ICONV_IMPL, 'unknown') == 0)
&& (@strcasecmp(ICONV_VERSION, 'unknown') == 0)
) {
return PMA_CHARSET_ICONV_AIX;
} else {
return PMA_CHARSET_ICONV;
}
}
/**
* Converts encoding of text according to parameters with detected
* conversion function.
*
* @param string $src_charset source charset
* @param string $dest_charset target charset
* @param string $what what to convert
*
* @return string converted text
*
* @access public
*
*/
function PMA_convertString($src_charset, $dest_charset, $what)
{
if ($src_charset == $dest_charset) {
return $what;
}
switch ($GLOBALS['PMA_recoding_engine']) {
case PMA_CHARSET_RECODE:
return recode_string($src_charset . '..' . $dest_charset, $what);
case PMA_CHARSET_ICONV:
return iconv(
$src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $what
);
case PMA_CHARSET_ICONV_AIX:
return PMA_convertAIXIconv(
$src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $what
);
case PMA_CHARSET_MB:
return mb_convert_encoding(
$what, $dest_charset, $src_charset
);
default:
return $what;
}
} // end of the "PMA_convertString()" function
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