<?php print_r($_GET); if($_GET["a"] === "") echo "a is an empty string\n"; if($_GET["a"] === false) echo "a is false\n"; if($_GET["a"] === null) echo "a is null\n"; if(isset($_GET["a"])) echo "a is set\n"; if(!empty($_GET["a"])) echo "a is not empty"; $offset = $argv[0]; // beware, no input validation! $query = $offset; echo $query; $offset='beware'; $query = $offset; echo $query; ?>
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