0

如何删除不需要的

在以下情况下使用 pregmatch 标记。我写了 pregmatch 但它不适用于某些情况。这是我的字符串

<?php 

$str='<div class="borderdummydiv" style="padding: 10px;">
<div class="showcolsec" style="line-height: normal;">
<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><strong>Email Template for Testing - 01:</strong></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;"><br data-mce-bogus="1"></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;">Email body for testing the autoresponder mails and email blasts scheduling functionality<br data-mce-bogus="1"></p>
<p></p>
<p><br></p>
<p></br></p>
<p>&nbsp; </br></p>
<p>&nbsp; <br class="ddd"></p>
<p class="ddd"></p>
<p class="ddd"><br class="ddd"></p>
<p class="ddd"></br></p>
<p class="ddd">&nbsp; </br></p>
<p class="ddd">&nbsp; <br class="ddd"></p>
</div>
</div>';
//echo $str;

echo preg_replace("/<p[^>]*>[\s|&nbsp;|<\br [^>]*>|<\/br>]*<\/p>/", '', $str);

?>

以下是不需要的段落。那么我怎样才能从字符串中删除

<p></p>
<p><br></p>
<p></br></p>
<p>&nbsp; </br></p>
<p>&nbsp; <br class="ddd"></p>
<p class="ddd"></p>
<p class="ddd"><br class="ddd"></p>
<p class="ddd"></br></p>
<p class="ddd">&nbsp; </br></p>
<p class="ddd">&nbsp; <br class="ddd"></p>
4

2 回答 2

1

在 <\br [^>]*> 部分的正则表达式中，您使用反斜杠转义“b”。这样你就可以把它变成一个退格键。我想你不想要那个。

尝试删除该反斜杠，然后使其变为：

echo preg_replace("/<p[^>]*>[\s|&nbsp;|<br [^>]*>|<\/br>]*<\/p>/", '', $str);

编辑：（因为提问者的新信息）好的，这个可以工作：

echo preg_replace("/<p[^>]*>(\s|&nbsp;|<br [^>]*>|<\/?br>)*<\/p>/", '', $str);

必须用圆括号替换方括号，并使“br”之前的斜线可选。

于 2015-06-19T07:02:10.007 回答
0

这是我的代码

$str='<div class="borderdummydiv" style="padding: 10px;">
<div class="showcolsec" style="line-height: normal;">
<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><strong>Email Template for Testing - 01:</strong></p>
<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><br data-mce-bogus="1"></p>
<p></p>
<p><br></p>
<p></br></p>
<p>&nbsp; </br></p>
<p>&nbsp; <br class="ddd"></p>
<p class="ddd"></p>
<p class="ddd"><br class="ddd"></p>
<p class="ddd"></br></p>
<p class="ddd">&nbsp; </br></p>
<p class="ddd">&nbsp; <br class="ddd"></p>
<p style="font-size: 14px;" data-mce-style="font-size: 14px;">Email body for testing the autoresponder mails and email blasts scheduling functionality<br data-mce-bogus="1"></p>

<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><strong>Email Template for Testing - 01:</strong></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;"><br data-mce-bogus="1"></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;">Email body for testing the autoresponder mails and email blasts scheduling functionality<br data-mce-bogus="1"></p>
</div>
</div>';

//echo $str;
echo preg_replace("/<p[^>]*>[\s|&nbsp;|<br [^>]*>|<\/br>]*<\/p>/", '', $str);

这是输出的html

<div class="borderdummydiv" style="padding: 10px;">
<div class="showcolsec" style="line-height: normal;">
<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><strong>Email Template for Testing - 01:</strong></p>
<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><br data-mce-bogus="1"></p>
<p></p>
</p>
<p>
<p>&nbsp; 
<p>&nbsp; <br class="ddd"></p>
<p class="ddd"></p>
<p class="ddd"><br class="ddd"></p>
<p class="ddd">
<p class="ddd">&nbsp; 
<p class="ddd">&nbsp; <br class="ddd"></p>
<p style="font-size: 14px;" data-mce-style="font-size: 14px;">Email body for testing the autoresponder mails and email blasts scheduling functionality<br data-mce-bogus="1"></p>

<p style="font-size: 14px;" data-mce-style="font-size: 14px;"><strong>Email Template for Testing - 01:</strong></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;"><br data-mce-bogus="1"></p><p style="font-size: 14px;" data-mce-style="font-size: 14px;">Email body for testing the autoresponder mails and email blasts scheduling functionality<br data-mce-bogus="1"></p>
</div>
</div>

在浏览器中显示这样

Email Template for Testing - 01:











Email body for testing the autoresponder mails and email blasts scheduling functionality

Email Template for Testing - 01:


Email body for testing the autoresponder mails and email blasts scheduling functionality
于 2015-06-19T07:45:03.363 回答