[root@placebo][~]
$ pecl install ssh2
Failed to download pecl/ssh2 within preferred state "stable", latest release is version 0.10, stability "beta", use "channel://pecl.php.net/ssh2-0.10" to install
Cannot initialize 'channel://pecl.php.net/ssh2', invalid or missing package file
Package "channel://pecl.php.net/ssh2" is not valid
install failed