php 解UNICODE编码

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php解UNICODE编码实例

<?php
function unicode_encode($name) {
 $name = iconv ( 'UTF-8', 'UCS-2', $name );
 
 $len = strlen ( $name );
$str = '';
 
for ($i = 0; $i < $len-1;$i = $i + 2)
{
$c = $name[$i];
$c2 = $name[$i + 1];
if (ord($c) > 0)
{    // 两个字节的文字
$str .= '\u'.base_convert(ord($c), 10, 16).base_convert(ord($c2), 10, 16);
}
else
{
$str .= $c2;
}
}
return $str;
 
}
 
// 将UNICODE编码后的内容进行解码,编码后的内容格式:YOKA\u738b (原始:YOKA王)
 
function unicode_decode($name)
{
// 转换编码,将Unicode编码转换成可以浏览的utf-8编码
 
$pattern = '/([\w]+)|(\\\u([\w]{4}))/i';
 
preg_match_all($pattern, $name, $matches);
 
if (!empty($matches))
{
$name = "";
for ($j = 0; $j < count($matches[0]); $j++)
{
$str = $matches[0][$j];
 
if (strpos($str, '\\u') === 0)
{
$code = base_convert(substr($str, 2, 2), 16, 10);
$code2 = base_convert(substr($str, 4), 16, 10);
$c = chr($code).chr($code2);
$c = iconv('UCS-2', 'UTF-8', $c);
$name .= $c;
}
else
{
$name .= $str;
}
}
}
return $name;
}
 
 
echo '<h3>http -> '.unicode_decode('\u0068\u0074\u0074\u0070').'</h3>';
 
$name = 'subin';
 
echo '<h3>'.unicode_encode($name).'</h3>';
?>

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