How do I eliminate repetition in this PHP code?

[boymaster]

Is there a way I can check all these values without having to code all these if statements and then grab the last value for instance in this code example \[code\]sub10\[/code\] How can I do this using PHP?Here is the PHP code.\[code\]if(isset($_GET['sub1'])) { $sub1 = $_GET['sub1'];}if(isset($_GET['sub2'])) { $sub2 = $_GET['sub2'];}if(isset($_GET['sub3'])) { $sub3 = $_GET['sub3'];}if(isset($_GET['sub4'])) { $sub4 = $_GET['sub4'];}if(isset($_GET['sub5'])) { $sub5 = $_GET['sub5'];}if(isset($_GET['sub6'])) { $sub6 = $_GET['sub6'];}if(isset($_GET['sub7'])) { $sub7 = $_GET['sub7'];}if(isset($_GET['sub8'])) { $sub8 = $_GET['sub8'];}if(isset($_GET['sub9'])) { $sub9 = $_GET['sub9'];}if(isset($_GET['sub10'])) { $sub10 = $_GET['sub10'];}\[/code\]