This page is dedicated for a bunch of PHP useful snippets and codes that we often use it in web development.
Opening and Closing PHP Tags
To write any php codes, you will always need to put that codes inside opening <?php and closing ?> tags. Otherwise it will not be executed.
For example:
<?php echo "Hello world!"; ?>
Including another php files
It’s a good practice if we can create separated php file contains all reusable functions then we include that file whenever we need it.
To include a php file we can do it like this:
include "aphpfile.php";
After we included it, all those functions inside that file is accessible for us.
Session to be started and destroyed
If we deal with “user login and logout”, we need to put session_start(); at the beginning of our php file. Then, if user logged out, we need to destroy that session by calling session_destroy();