A simple program that will ask the user to give prelim, midterm, and endterm grade and then the program will compute the average grade of the student using PHP programming language.
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Program Listing
index.php
<?php if(isset($_POST["grade1"], $_POST["grade2"], $_POST["grade3"])) { $calc = $_POST["grade1"] + $_POST["grade2"] +$_POST["grade3"]; $calc = round($calc / 3, 2); $avg = '<div>You average grade is: <strong>'.$calc.'</strong></div>'; } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Average Grade Solver</title> <style> * { box-sizing: border-box; margin: 0; padding: 0; } body { min-height: 100vh; display: flex; justify-content: center; align-items: center; background-color: #f1f1f1; font-family: sans-serif; } main { padding: 30px; border-radius: 2px; background-color: #fff; } h1 { margin-bottom: 10px; line-height: 1; text-transform: uppercase; font-size: 28px; text-align: center; } h2 { margin-bottom: 30px; line-height: 1; font-size: 20px; text-align: center; } .block { margin: 0 auto 10px; } label { display: block; margin-bottom: 5px; } input { padding: 8px; width: 100%; } button { padding: 8px 16px; background-color: #607d8b; color: #fff; outline: 0; border: 0; border-radius: 3px; cursor: pointer; width: 150px; width: 100%; margin-bottom: 20px; } button + div { font-size: 18px; text-align: center; background-color: #ffeb3b; padding: 10px; border-radius: 3px; } </style> </head> <body> <main class="container"> <h1>Average Grade Solver in PHP</h1> <h2>Jake R. Pomperada, MAED-IT, MIT</h2> <form action="" method="post"> <div class="block"> <label for="grade1">Give Prelim Grade:</label> <input type="number" min=0 name="grade1" id="grade1"> </div> <div class="block"> <label for="grade2">Give Midterm Grade:</label> <input type="number" min=0 name="grade2" id="grade2"> </div> <div class="block"> <label for="grade3">Give Final Grade:</label> <input type="number" min=0 name="grade3" id="grade3"> </div> <button type="submit">Submit</button> <?php if(isset($avg)) echo $avg; ?> </form> </main> </body> </html>
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