php script that includes class structure doesn't work

Question

Hi everyone, I have a php script running on centos 5.x When i use a code like

$db->connect();

php script doesn't work.I use php myscript.php and it does nothing. .. .. ..

$db->connect();
echo "Hello world";

when i run above script it does nothing.Nothing means the like this; [root@xxxxxxx update_call_history]# php update_call_history.php {press enter} [root@xxxxxxx update_call_history]#

but if i change the script like this

echo "hello world";

it works.I think my php doesnt run class structured script,Is there any missing module or what. Thanks for advance...

Answer 1

Make sure that:

• mysql server is on
• you have turned on error reporting
• you are specifying correct credentials

Answer 2

If all the information you've been able to gather is "doesn't work" you need to do two things:

1. Configure your environment to generate and display/log all error messages.
2. Check the return value of the function calls, test whether it was successful and print the exact error message if not.

Answer 3

php-mysql module wasn't installed so it couldn't connect to database.