The first screenshot at right shows the initial rendering ofprob3.html. The textbox has name=”num”. When the form is submitted,a GET request is sent to prob3.php in the same folder. This scriptchecks whether this number is less than 10 or greater than 20. Ifnot, then it is considered in range, and the value is echoed backin the HTML of the response. The second screenshot on the right isthe rendering of the response when the number entered was 15. If,however, the number is out of range, then the request is redirectedto a script outOfRange.php in the folder errors just below thedocument root
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