The phpinfo() function outputs a huge amount of information about the system you're using, such as (for example):
- PHP Version
- PHO environment
- PHP options and extension available
- OS version
- predefined variables
- ... and many others...
To create a phpinfo file, simply open a plain text file in your web space, name it phpinfo.php, and insert in it the following line:
<?php
phpinfo();
?>
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