在我的代码中,如何检测它是从命令行运行并跳过这些行,所以我不必看到这些通知？

我不想通过管道到/ dev / null阻止这些通知,我宁愿增强PHP代码.

david@ubuntu:/var/www/user$PHP cron_email.PHP
PHP Deprecated:  Comments starting with '#' are deprecated in /etc/PHP5/cli/conf.d/mcrypt.ini on line 1 in Unknown on line 0
PHP Notice:  Undefined index: SERVER_NAME in /var/www/user/codestart.PHP on line 14
PHP Notice:  Undefined index: REMOTE_ADDR in /var/www/user/codestart.PHP on line 97
PHP Notice:  Undefined index: REQUEST_URI in /var/www/user/codestart.PHP on line 99
PHP Notice:  Undefined index: HTTP_REFERER in /var/www/user/codestart.PHP on line 100
PHP Notice:  Undefined index: REQUEST_METHOD in /var/www/user/codestart.PHP on line 101
PHP Notice:  Undefined index: HTTP_USER_AGENT in /var/www/user/codestart.PHP on line 102