See the current options with php –help. If you want to run a file from the command line instead of through the browser, simply do this:
php <filename>
The -r flag tells php to not require code tags, and allows code to be used instead of a file name.
php -r 'echo date("Y-m-d h:i:s", strtotime("2004-10-28T16:37:15Z")) . "\n";'
PHP allows you to have commands executed as you type them. To start in interactive mode, use the -a switch.
$ php -a Interactive mode enabled <? ob_start(); $now = time(); echo date("Y-m-d", $now); exit("\n");
(output will be the current date)