使用pear下载包出现：No releases available for package “pear.php.net/PHP_CodeSniffer”

1、更新一下list

PS C:\php> pear list-upgrades；

Connection to `ssl://pear.php.net:443′ failed: Unable to find the socket transport “ssl” – did you forget to enable it when you configured PHP?

2、出现php未开启ssl，到php.ini中打开ssl；

3、重新更新一下list

PS C:\php> pear list-upgrades

WARNING: channel “pear.php.net” has updated its protocols, use “pear channel-update pear.php.net” to update

4、提示channel有更新，更新一下channel

PS C:\php> pear channel-update pear.php.net

Updating channel “pear.php.net”

Update of Channel “pear.php.net” succeeded

5、再尝试upgrade

PS C:\php> pear list-upgrades

Channel pear.php.net: No upgrades available

6、安装你需要的扩展，例如phpcs

PS C:\php> pear install PHP_CodeSniffer-3.4.2

downloading PHP_CodeSniffer-3.4.2.tgz …

Starting to download PHP_CodeSniffer-3.4.2.tgz (637,880 bytes)

………………………………………………………………………………………………………………..done: 637,880 bytes

install ok: channel://pear.php.net/PHP_CodeSniffer-3.4.2

看吧~成功了