php使用htmlspecialchars函数转换序列化后反序列化无效

[dnpao]

一段html代码 用 htmlspecialchars 函数转换后再序列化serialize，生成以下代码，但是unserialize却无效，在网上看到重新计算字符的长度，但还是无效，是什么问题

function mb_unserialize($serial_str) {  
    $serial_str= preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $serial_str );  
    $serial_str= str_replace("\r", "", $serial_str); 
    return unserialize($serial_str);  
}

a:1:{s:4:"html";s:1256:"<li class="news-li"><a href="#"><span class="news-span">07-01</span>特朗普放大招！美国大幅减税 中国该如何应对？</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>印度男子上公交车脱鞋 袜子太臭引众怒被警方逮捕</a></li>
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<li class="news-li"><a href="#"><span class="news-span">07-01</span>女子微信借钱给朋友 只因备注了两个字被赖账</a></li>
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以下是源码

<li class="news-li"><a href="#"><span class="news-span">07-01</span>特朗普放大招！美国大幅减税 中国该如何应对？</a></li> <li class="news-li"><a href="#"><span class="news-span">07-01</span>印度男子上公交车脱鞋 袜子太臭引众怒被警方逮捕</a></li> <li class="news-li"><a href="#"><span class="news-span">07-01</span>河北百余白血病患者遇“配捐”骗局 警方介入调查</a></li> <li class="news-li"><a href="#"><span class="news-span">07-01</span>女子微信借钱给朋友 只因备注了两个字被赖账</a></li> <li class="news-li"><a href="#"><span class="news-span">07-01</span>老太创业失败摊偿还百万债务：该我还的债一定要还</a></li> <li class="news-li"><a href="#"><span class="news-span">07-01</span>9岁男孩输液中出现休克症状 抢救时鼻腔出血身亡</a></li>

[老虎爱代码]

你是不是步骤弄反了啊，经测试是可以解析出来的

$string ='a:1:{s:4:"html";s:1256:"<li class="news-li"><a href="#"><span class="news-span">07-01</span>特朗普放大招！美国大幅减税 中国该如何应对？</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>印度男子上公交车脱鞋 袜子太臭引众怒被警方逮捕</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>河北百余白血病患者遇“配捐”骗局 警方介入调查</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>女子微信借钱给朋友 只因备注了两个字被赖账</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>老太创业失败摊偿还百万债务：该我还的债一定要还</a></li>
<li class="news-li"><a href="#"><span class="news-span">07-01</span>9岁男孩输液中出现休克症状 抢救时鼻腔出血身亡</a></li>";}';
$unsetArr = (unserialize($string));
foreach ($unsetArr as $key=> $unset) {
   $unsetArr [$key] = htmlspecialchars_decode($unset);
}
var_dump($unsetArr);

[小熊开发]

htmlspecialchars_decode(unserialize($serial_str))