AGI not working

Hi mudslide,
Thank you for your responding.
Even I changed the dial plan like this:


[from-internal]
exten => 789,1,AGI(simpleAgi.php)
exten => 789,n,Hangup()

I still got errors:

[Oct 14 13:32:18] VERBOSE[23773] logger.c: – Launched AGI Script /var/lib/asterisk/agi-bin/simpleAgi.php
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_request: simpleAgi.php
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_channel: SIP/211-b7800468
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_language: en
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_type: SIP
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_uniqueid: 1287088338.43
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_callerid: 211
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_calleridname: device
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_callingpres: 0
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_callingani2: 0
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_callington: 0
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_callingtns: 0
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_dnid: 123
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_rdnis: unknown
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_context: from-internal
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_extension: 123
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_priority: 1
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_enhanced: 0.0
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> agi_accountcode:
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >>
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Rx << Usage: php [options] [-f] [–] [args…]
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> 510 Invalid or unknown command
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Rx << php [options] -r [–] [args…]
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> 510 Invalid or unknown command
[Oct 14 13:32:18] ERROR[23773] utils.c: write() returned error: Broken pipe
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Rx << php [options] [-B <begin_code>] -R [-E <end_code>] [–] [args…]
[Oct 14 13:32:18] VERBOSE[23773] logger.c: AGI Tx >> 510 Invalid or unknown command
[

I am getting frustrated now. I do not know what to do.
Please help me out.
Thank you very much,

Please help me !!!
Thank you!