send mail personal solution php

What should I write to send email from Ruby Stack on mac with my solution in php and mysql

[mail function]

; For Win32 only.

; http://php.net/smtp

SMTP = localhost

; http://php.net/smtp-port

smtp_port = 25

; For Win32 only.

; http://php.net/sendmail-from

;sendmail_from = me@example.com

; For Unix only. You may supply arguments as well (default: "sendmail -t -i").

; http://php.net/sendmail-path

;sendmail_path =

; Force the addition of the specified parameters to be passed as extra parameters

; to the sendmail binary. These parameters will always replace the value of

; the 5th parameter to mail(), even in safe mode.

;mail.force_extra_parameters =

; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename

mail.add_x_header = On

; The path to a log file that will log all mail() calls. Log entries include

; the full path of the script, line number, To address and headers.

;mail.log =

thanks