使用正则表达式删除空的段落标记 （“空间”上的标准str_replace不起作用）

问题描述：

TinyMCE creates empty paragraph tags when you hit enter twice. like:

<p> </p>

Which is SPACE

In FireBug it calls this space a " " but the html code/DB backend just shows a space. When I do "str_replace(' '....." it doesnt find the block... basically I think the "space" is somehow not a standard space and some sort of borked encoded space. Is there a regex I can run that will remove this tag? I've been stuck on this for hours... or even something like

regex('LESS THAN THREE CHARS'...)

would probably work

Thank you

当您按两次输入时，TinyMCE会创建空的段落标记。像： p>

 ＆LT; p为H.  ＆lt; / p＆gt; 
  code>  pre> 
 
  
 ＆lt; p＆gt; SPACE＆lt; / p＆gt;  code>  p> 
 
  
在FireBug中，它将此空间称为“＆amp; nbsp;” code>，但html代码/数据库后端只显示一个空格。 当我执行“str_replace（'＆lt; p＆gt;＆lt; / p＆gt;'.....” code>时，它找不到块...基本上我认为“空间”不是一个标准 空间和某种borked编码空间。有没有我可以运行的正则表达式会删除这个标签？我已经坚持了几个小时...甚至像 p> 
 
 
 正则表达式（'＆lt; p＆gt;少于三个字符＆lt; / p＆gt;'...） code>  p> 
 
 

可能会起作用 p> 
 
 
谢谢 p> 
  div>

答

I would use:

$str = preg_replace('~<p>\s*<\/p>~i','',$str);

where \s signifies a white space of any kind (tab, space, etc.) and * indicates 0 or more occurence of this (space). So ,  , {multiple spaces here} will all be replaced by an empty string. The additional i flag is for case-insensitivity, just in case 's might instead be 's.

答

Try this

$string="a bunch of text with <p> </p> in it";

$string=str_replace("/<p> <\/p>/","",$string);

Note a couple things: the forward slashes before and after the string to match, as well as the escaping backslash before the forward slash in the second paragraph tag.

答

$text = preg_replace('#<p>&nbsp;</p>#i','<p></p>', $text);

worked for me, as the variable contains the actual string " " and not the non-breaking space unicode character. Thus neither #.#i worked nor copying the non-breaking-space character from character map.

答

The answers above won't work if  tag has any inline attributes, such as .

Here is a regex to catch it:

#<p[^>]*>(\s|&nbsp;|</?\s?br\s?/?>)*</?p>#

答

None of the given answers were working for me, but here's what did:

$str = str_replace('&lt;p&gt;&nbsp;&lt;/p&gt;', '', $str);

Definitely not the most correct way to do things. But if you're working with (against) TinyMCE, specifically inside of SuiteCRM, this should help.

使用正则表达式删除空的段落标记 （“空间”上的标准str_replace不起作用）

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使用正则表达式删除空的段落标记
（“空间”上的标准str_replace不起作用）