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Homephp教程php手册php反中文汉字转Unicode编码实现程序

本文章来给大家介绍php反中文汉字转Unicode编码实现程序方法,有需要了解的朋友可进入参考。

程序

 代码如下 复制代码

/**
 * $str 原始字符串
 * $encoding 原始字符串的编码,默认GBK
 * $prefix 编码后的前缀,默认""
 * $postfix 编码后的后缀,默认";"
 */
function unicode_encode($str, $encoding = 'GBK', $prefix = '', $postfix = ';') {
    $str = iconv($encoding, 'UCS-2', $str);
    $arrstr = str_split($str, 2);
    $unistr = '';
    for($i = 0, $len = count($arrstr); $i         $dec = hexdec(bin2hex($arrstr[$i]));
        $unistr .= $prefix . $dec . $postfix;
    }
    return $unistr;
}
 
/**
 * $str Unicode编码后的字符串
 * $encoding 原始字符串的编码,默认GBK
 * $prefix 编码字符串的前缀,默认""
 * $postfix 编码字符串的后缀,默认";"
 */
function unicode_decode($unistr, $encoding = 'GBK', $prefix = '', $postfix = ';') {
    $arruni = explode($prefix, $unistr);
    $unistr = '';
    for($i = 1, $len = count($arruni); $i         if (strlen($postfix) > 0) {
            $arruni[$i] = substr($arruni[$i], 0, strlen($arruni[$i]) - strlen($postfix));
        }
        $temp = intval($arruni[$i]);
        $unistr .= ($temp     }
    return iconv('UCS-2', $encoding, $unistr);
}

使用范例:

 代码如下 复制代码

//GBK字符串测试
$str = '哈哈';
echo $str.'
';
 
$unistr = unicode_encode($str);
echo $unistr.'
'; // 哈哈
 
$str2 = unicode_decode($unistr);
echo $str2.'
'; //哈哈
 
//UTF-8字符串测试
$utf8_str = iconv('GBK', 'UTF-8', $str);
echo $utf8_str.'
'; // ???? 注:UTF在GBK下显示的乱码!可切换浏览器的编码测试
 
$utf8_unistr = unicode_encode($utf8_str, 'UTF-8');
echo $utf8_unistr.'
'; // 哈哈
 
$utf8_str2 = unicode_decode($utf8_unistr, 'UTF-8');
echo $utf8_str2.'
'; // ????
 
//其它后缀、前缀测试
$prefix_unistr = unicode_encode($str, 'GBK', "u", '');
echo $prefix_unistr.'
'; // u60u98u62u21704u21704u60u47u98u62
 
$profix_unistr2 = unicode_decode($prefix_unistr, 'GBK', "u", '');
echo $profix_unistr2.'
'; //哈哈



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