cd /usr/local/php/bin/

wget http://pear.php.net/go-pear.phar -O go-pear.php

php go-pear.php

##回车默认安装

yum安装
yum install php-pear

pecl search key-word    #查找扩展

pecl install key-word   #安装扩展

[root@localhost src]# pecl search swoole

Retrieving data...%

Matched packages, channel pecl.php.net:

=======================================

Package Stable/(Latest) Local

swoole  1.8. (stable) 1.8. Event-driven asynchronous and concurrent networking engine with high performance for PHP.

[root@localhost src]# pecl search xdebug

Retrieving data...%

Matched packages, channel pecl.php.net:

=======================================

Package Stable/(Latest) Local

xdebug  2.4. (stable)        Provides functions for function traces and profiling

pecl install xdebug

##安装完成之后，输出

Build process completed successfully

Installing '/usr/lib64/php/modules/xdebug.so'

install ok: channel://pecl.php.net/xdebug-2.4.1

configuration option "php_ini" is not set to php.ini location

You should add "zend_extension=/usr/lib64/php/modules/xdebug.so" to php.ini

##根据提示，我们在php.ini的最后添加

zend_extension=/usr/lib64/php/modules/xdebug.so

pecl install swoole

php.ini 中删除 extension=swoole.so

卸载,切换到PHP安装目录下的bin

./pecl uninstall swoole(已swoole为例)