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<?php |
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/** |
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* Class Charset |
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* |
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* @link https://www.icy2003.com/ |
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* @author icy2003 <[email protected]> |
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* @copyright Copyright (c) 2017, icy2003 |
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*/ |
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namespace icy2003\php\ihelpers; |
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/** |
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* 编码转换 |
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*/ |
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class Charset |
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{ |
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/** |
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* 检测字符串的编码格式. |
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* |
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* @param string $string |
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* |
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* @return string 编码 |
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*/ |
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public static function detect($string) |
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{ |
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// EUC-CN 是 GB2312 的表现方式 |
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$charset = mb_detect_encoding($string, 'UTF-8,EUC-CN,ISO-8859-2,ASCII,UTF-7,EUC-JP,SJIS,eucJP-win,SJIS-win,JIS,ISO-2022-JP', true); |
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return $charset; |
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} |
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/** |
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* 将任意编码的字符串转成 UTF-8. |
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* |
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* @param string $string |
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* @param string|null $fromCharset 强制指定编码 |
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* |
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* @return string 转码后的字符串 |
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*/ |
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public static function toUtf($string, $fromCharset = null) |
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{ |
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return self::convertTo($string, 'UTF-8', $fromCharset); |
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} |
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/** |
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* 将任意编码的字符串转成中文编码. |
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* |
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* @param string $string |
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* @param string|null $fromCharset 强制指定编码 |
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* |
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* @return string 转码后的字符串 |
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*/ |
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public static function toCn($string, $fromCharset = null) |
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{ |
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return self::convertTo($string, 'EUC-CN', $fromCharset); |
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} |
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/** |
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* 判断字符串是否是 UTF-8 编码 |
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* |
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* @param string $string 待检测的字符串 |
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* |
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* @return boolean |
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*/ |
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public static function isUtf8($string) |
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{ |
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return 'UTF-8' === self::detect($string); |
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} |
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/** |
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* 转换编码 |
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* |
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* @param string $string 待转换的字符串 |
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* @param string $targetCharset 目标编码 |
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* @param string|null $fromCharset 强制指定编码 |
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* |
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* @return string |
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*/ |
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public static function convertTo($string, $targetCharset, $fromCharset = null) |
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{ |
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$charset = null === $fromCharset ? self::detect($string): $fromCharset; |
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$converted = @iconv($charset, $targetCharset . '//TRANSLIT//IGNORE', $string); |
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// if (false === $converted) { |
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// $converted = mb_convert_encoding($string, $targetCharset); |
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// } |
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return $converted; |
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} |
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} |
icy2003 /
php
If the returned type also contains false, it is an indicator that maybe an error condition leading to the specific return statement remains unhandled.