php url decode问题:+被转义成空格问题

php代码用 urlencode/urldecode, "+"在urldecode时会被转成空格，看代码以下php $str = "QQ:￥￥++"; echo "ori=$str"; echo "<br/>"; echo "encode=".urlencode($str); echo "|<br/>"; echo "decode=".urldecode($str); echo "|<br/>";

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