what is pecl? How to install pecl under centos?

I want to install the swoole extension in my system. The official website provides installation using pecl. However, after I entered pecl install swoole, the system said that the command was not found. Then I searched Baidu for a long time and could not find how to install pecl under linux. What is this thing? How to install it?

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I want to install the swoole extension in my system. The official website provides installation using pecl. However, after I entered pecl install swoole, the system said that the command was not found. Then I searched Baidu for a long time and could not find how to install pecl under linux. What is this thing? How to install it?

PECL: PHP Extension Community Library

Official website: pecl.php.net

Generally, PHP is installed in its bin directory, such as /usr/local/php/bin

So if you want to use it directly, either add the bin directory to the environment variable PATH, or soft-link it to the /usr/bin directory

yum install php-devel

<code>#Ubuntu/Debian上是这样(php-pear包含pecl,php5-dev包含phpize,pecl依赖phpize)
apt-get install php-pear php5-dev
pecl install swoole

#CentOS/Redhat上应该是这样
yum install php-pear php-devel
pecl install swoole

#如果是自行编译的PHP(假设安装目录为/opt/php/7.0)
/opt/php/7.0/bin/phpize
/opt/php/7.0/bin/pecl</code>

Compile and install PHP tutorial reference on Linux