An example of how to install extensions in PHP via pecl

# cd /usr/local/php/bin/  //可查看是否已带有pecl 
# wget http://pear.php.net/go-pear.phar -O go-pear.php 
# php go-pear.php 
# ln -s /usr/local/php 
/bin/pecl /usr/bin/pecl

# pecl search swoole  // swoole为要查询扩展名（以swoole扩展为例） 
//查询结果： 
Retrieving data...0% 
.Matched packages, channel pecl.php.net: 
======================================= 
Package Stable/(Latest) Local 
swoole 1.9.23 (stable) Event-driven asynchronous and concurrent networking engine with high performance for PHP. 
swoole_serialize 0.1.1 (beta) the fastest and smallest serialize fucntion bound for php7

# pecl install swoole 
//输出结果： 
Build process completed successfully 
Installing '/usr/lib64/php/modules/swoole.so' 
install ok: channel://pecl.php.net/swoole-1.9.23 
configuration option "php_ini" is not set to php.ini location 
You should add "extension=swoole.so" to php.ini 
 
# 配置php.ini引用swoole.so然后重启php即可