How to implement PHP regular matching that does not contain a certain character

How to implement php regular matching that does not contain a certain character: first create a PHP sample file; then enter the statement "$search = '//is ';preg_match_all($search,$str,$r);"; Finally, execute the file.

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php Regular matching content does not include A certain character

Specific question:

I need to match characters that include , but they cannot contain

For example:

Hello customer, I recommend the following projects to you: > and

I want to match and

Implementation method:

<?php
$str = &#39;客户您好，为您推荐以下项目：<项目2:项目名称<项目3:项目名称>>以及<项目1:项目名称>&#39;;
$search = &#39;/<([^<]*?)>/is&#39;;
preg_match_all($search,$str,$r);
echo &#39;<pre class="brush:php;toolbar:false">&#39;;
print_r($r);
echo &#39;

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