Work fine, in web browser, when i try to run like cron, not work, give error like:

Code:
/home/com/public_html/cron_guest_info_table.php: line 1: ?php
: No such file or directory
/home/com/public_html/cron_guest_info_table.php: line 2: syntax error near unexpected token `"/home/com/public_html/include/config.php"'
/home/com/public_html/cron_guest_info_table.php: line 2: `        include("/home/com/public_html/include/config.php");
why? i dont understand why trought broeser work and with cron no. :(