我尝试执行pecl upgrade-all但得到以下结果：
Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in PEAR/Proxy.php on line 105
PHP Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in /usr/local/lib64/php/PEAR/Proxy.php on line 105
Notice: Undefined variable: proxy_host in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_host in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Notice: Undefined variable: proxy_port in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_port in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Error getting channel info from pear.php.net: Could not establish SSL connection through proxy ::
Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in PEAR/Proxy.php on line 105
PHP Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in /usr/local/lib64/php/PEAR/Proxy.php on line 105
Notice: Undefined variable: proxy_host in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_host in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Notice: Undefined variable: proxy_port in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_port in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Error getting channel info from pear.php.net: Could not establish SSL connection through proxy ::
Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in PEAR/Proxy.php on line 105
PHP Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in /usr/local/lib64/php/PEAR/Proxy.php on line 105
Notice: Undefined variable: proxy_host in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_host in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Notice: Undefined variable: proxy_port in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_port in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Error getting channel info from pear.php.net: Could not establish SSL connection through proxy ::
Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in PEAR/Proxy.php on line 105
PHP Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in /usr/local/lib64/php/PEAR/Proxy.php on line 105
Notice: Undefined variable: proxy_host in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_host in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Notice: Undefined variable: proxy_port in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_port in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Error getting channel info from pear.php.net: Could not establish SSL connection through proxy ::
Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in PEAR/Proxy.php on line 105
PHP Warning: stream_socket_enable_crypto(): this stream does not support SSL/crypto in /usr/local/lib64/php/PEAR/Proxy.php on line 105
Notice: Undefined variable: proxy_host in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_host in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Notice: Undefined variable: proxy_port in PEAR/Proxy.php on line 107
PHP Notice: Undefined variable: proxy_port in /usr/local/lib64/php/PEAR/Proxy.php on line 107
Error getting channel info from pear.php.net: Could not establish SSL connection through proxy ::
Nothing to upgrade-all
我能做些什么？