How to solve the problem that php still has blank space after using strip_tags() to remove html tags

This article mainly introduces the solution to the problem of using strip_tags() in PHP to remove html tags that still have blank spaces. It involves related operation skills of PHP regular replacement. Friends in need can refer to it. I hope to be helpful.

The details are as follows:

$subject = strip_tags($newsRs['content']);//去除html标签
$pattern = '/\s/';//去除空白
$content = preg_replace($pattern, '', $subject);      
$seodata['articledescription'] = mb_substr($content, 0, 80);//截取80个汉字

Note: strip_tags(); in the first step; just replaces the html tags with spaces

For example:

<p>
  你好
</p>
<p>
  <br />
</p>
<p>
  alsdkjf;laskjd;flasj;
</p>
<p>
  asdjfasjd;lkafsj;lfdkj
</p>
<p>
  aksdjfl;ak
</p>

After strip_tags() is processed, it becomes

  你好
      空行...
  alsdkjf;laskjd;flasj;
      空行...
  asdjfasjd;lkafsj;lfdkj
      空行...
  aksdjfl;ak

This may not be what we want, and then use regular replacement to remove the blanks

The final result:

你好alsdkjf;laskjd;flasj;asdjfasjd;lkafsj;lfdkjaksdjfl;ak

In addition: \s represents a blank character, \S represents a non-blank character (note the case, generally the upper and lower case means the opposite meaning)

Related recommendations:

Detailed explanation of regular expression capturing groups and non-capturing groups in PHP

Basics and simple examples of PHP regular expressions

Summary of commonly used functions in php

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