4ed47fc4b4
Also removes ancient support for AIX iconv. Issue #11731 Signed-off-by: Michal Čihař <michal@cihar.com>
114 lines
3.1 KiB
PHP
114 lines
3.1 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Hold the PMA\libraries\Encoding class
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*
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* @package PhpMyAdmin
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*/
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namespace PMA\libraries;
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/**
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* Encoding conversion helper class
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*
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* @package PhpMyAdmin
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*/
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class Encoding
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{
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const ENGINE_NONE = 0;
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const ENGINE_ICONV = 1;
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const ENGINE_RECODE = 2;
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const ENGINE_MB = 3;
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private static $_engine = null;
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private static $_enginemap = array(
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'iconv' => array('iconv', self::ENGINE_ICONV, 'iconv'),
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'recode' => array('recode_string', self::ENGINE_RECODE, 'recode'),
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'mb' => array('mb_convert_encoding', self::ENGINE_MB, 'mbstring'),
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'none' => array('isset', self::ENGINE_NONE, ''),
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);
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private static $_engineorder = array(
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'iconv', 'recode', 'mb'
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);
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public static function initEngine()
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{
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$engine = 'auto';
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if (isset($GLOBALS['cfg']['RecodingEngine'])) {
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$engine = $GLOBALS['cfg']['RecodingEngine'];
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}
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/* Use user configuration */
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if (isset(self::$_enginemap[$engine])) {
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if (@function_exists(self::$_enginemap[$engine][0])) {
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self::$_engine = self::$_enginemap[$engine][1];
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return;
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} else {
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PMA_warnMissingExtension(self::$_enginemap[$engine][2]);
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}
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}
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/* Autodetection */
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foreach (self::$_engineorder as $engine) {
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if (@function_exists(self::$_enginemap[$engine][0])) {
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self::$_engine = self::$_enginemap[$engine][1];
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return;
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}
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}
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/* Fallback to none conversion */
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self::$_engine = self::ENGINE_NONE;
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}
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public static function setEngine($engine)
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{
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self::$_engine = $engine;
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}
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/**
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* Converts encoding of text according to parameters with detected
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* conversion function.
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*
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* @param string $src_charset source charset
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* @param string $dest_charset target charset
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* @param string $what what to convert
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*
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* @return string converted text
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*
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* @access public
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*
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*/
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public static function convertString($src_charset, $dest_charset, $what)
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{
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if ($src_charset == $dest_charset) {
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return $what;
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}
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if (is_null(self::$_engine)) {
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self::initEngine();
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}
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switch (self::$_engine) {
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case self::ENGINE_RECODE:
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return recode_string(
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$src_charset . '..' . $dest_charset,
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$what
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);
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case self::ENGINE_ICONV:
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return iconv(
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$src_charset,
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$dest_charset .
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(isset($GLOBALS['cfg']['IconvExtraParams']) ? $GLOBALS['cfg']['IconvExtraParams'] : ''),
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$what
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);
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case self::ENGINE_MB:
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return mb_convert_encoding(
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$what,
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$dest_charset,
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$src_charset
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);
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default:
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return $what;
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}
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}
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}
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