Something

AGI Rx << Usage: php [-q] [-h] [-s] [-v] [-i] [-f <file>]
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<        php <file> [args...]
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -a               Run interactively
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -C               Do not chdir to the script's directory
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -c <path>|<file> Look for php.ini file in this directory
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -n               No php.ini file will be used
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -d foo[=bar]     Define INI entry foo with value 'bar'
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -e               Generate extended information for debugger/profiler
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -f <file>        Parse <file>.  Implies `-q'
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -h               This help
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -i               PHP information
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -l               Syntax check only (lint)
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -m               Show compiled in modules
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -q               Quiet-mode.  Suppress HTTP Header output.
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -s               Display colour syntax highlighted source.
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -v               Version number
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -w               Display source with stripped comments and whitespace.
AGI Tx >> 510 Invalid or unknown command
AGI Rx <<   -z <file>        Load Zend extension <file>.
AGI Tx >> 510 Invalid or unknown command
    -- AGI Script checknum.php completed, returning 0