Question

在这个变量中：$ this-＆gt; item-＆gt; text我有这个字符串：

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<div class="itp-fshare-floating" id="itp-fshare" style="position:fixed; top:30px !important; left:50px !important;"></div><p>Lorem Ipsum è un testo segnaposto utilizzato nel settore della tipografia e della stampa. Lorem Ipsum è considerato il testo segnaposto standard sin dal sedicesimo secolo, quando un anonimo tipografo prese una cassetta di caratteri e li assemblòdei fogli di caratteri trasferibili “Letraset”,</p>
<p style="text-align: center;"><span class="easy_img_caption" style="display:inline-block;line-height:0.5;vertical-align:top;background-color:#F2F2F2;text-align:left;width:150px;float:left;margin:0px 10px;"><a href="/joomla/index.php?option=com_content&view=article&id=8:recensione&catid=3:recensione-dei-servizi-di-cloud-computing&Itemid=4"><img src="/joomla/plugins/content/imagesresizecache/8428e9c26f1d8498ece730c0aa6aa023.jpeg" border="0" alt="1" title="1"  style="width:150px; height:120px; ;margin:0;" /></a><span class="easy_img_caption_inner" style="display:inline-block;line-height:normal;color:#000000;font-size:8pt;font-weight:normal;font-style:normal;padding:4px 8px;margin:0px;">1</span></span></p>
<p>che contenevano passaggi del Lorem Ipsum, e più recentemente da software di impaginazione come Aldus PageMaker</p>

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<span class="cp_tag_label">Tags: </span><span class="cp_tag cp_tag_6"><a href="/joomla/index.php?option=com_customproperties&task=tag&tagId=6&Itemid=1">Recensioni</a>
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所以使用这段代码我提取

<span class="easy_img_caption......></span>

代码（我正在使用这个名为phpQuery http://goo.gl/rSu3k的库）：

include_once('includes/phpQuery.php');
$doc = phpQuery::newDocument($this->item->text);
$extraction=pq('.easy_img_caption:eq(0)')->htmlOuter();
echo"<textarea>".$extraction."</textarea>";

所以我的问题是：如何从$ this-＆gt; item-＆gt; text中删除$ extract字符串？谢谢。

Answer 1

我会假设phpQuery是一些帮助在php中进行dom解析的库吗？

无论如何，要实现这一点，您并不需要这个外部库。它可以通过正则表达式替换来轻松完成：

$text = preg_replace('/<span.*?class="[^"]*?easy_img_caption[^"]*?".*?>.*?<\/span>/s', '', $this->item->text);
echo "<textarea>" . $text . "</textarea>";

[php]从字符串中删除html代码

1 个答案: