PHP Databases Handling
You need to check whether ______ is set, to determine whether you’re editing an entry or creating a new one.

$_SET[‘url’].
$_GET[‘admin’].
$_SET[‘admin’].
$_GET[‘url’].

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PHP Databases Handling
When you are building administrative links you’ll need to accept two arguments, which of the following are they?

URL of previous entry and previous page
URL of previous entry and URL of the entry you are working with
The current page and previous page
The current page and URL of the entry you are working with

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