sql - php and page id - how to? -

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i've begun learn php , there bugging me. see php pages, load content following way:

index.php?id=16

what mean? there single index.php file , content of different file (in case 16) loaded page? advantageous?

and: how create such id-pages?

i've googled , made search here, couldn't find answers...

if tell me how function called me lot!

thanks in advance!

this means calling index.php file, , pass parameter called id value 16. can access value this

$_get['id']

it allows have dynamic content in page example.


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