Apache server does not work PHP

Apache Server cannot run PHP
System: RHEL6
Lamp Construction Completed

Apache starts normally
But unable to run PHP files, in the browser directly display the PHP code!

------Solution--------------------
Phpinfo ();
?>

So what?
------Solution--------------------
PHP is changed to ------solution by default--------------------
Just add AddType application/x-httpd-php. php This is not enough. To confirm that the PHP module is loaded does not. Search for the relevant configuration.
------Solution--------------------
The PHP environment should not be built correctly.
------Solution--------------------
You're not setting up a good environment.

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