<?php
$sgpa=0;
if(!empty($_POST["save"]))
{
$total_subjects = count($_POST["subject_name"]);
$counter=0;
$total_cr=$_POST['total_cr'];
$sub_cr=$_POST["sub_cr"];
for($i=0;$i<$total_subjects;$i++)
{
$counter++;
$sub_gpa=($_POST["subject_gpa"][$i]*$sub_cr[$i])/$total_cr;
$sgpa+=$sub_gpa;
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>gpa</title>
</head>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css">
<link rel="stylesheet" type="text/css" href="bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="http://code.jquery.com/jquery-2.1.1.js"></script>
<script>
function addMore() {
$("<div>").load("getdata.php", function() {
$("#subjects").append($(this).html());
});
}
function deleteRow() {
$('div.grab_values').each(function(index, item){
jQuery(':checkbox', this).each(function () {
if ($(this).is(':checked')) {
$(item).remove();
}
});
});
}
</script>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="index.php">GPA CALCULATOR</a>
</div>
<ul class="nav navbar-nav">
<li class="active"><a href="index.php"><span class="glyphicon glyphicon-home"></span>Calculate SGPA</a></li>
<li><a href="cgpa.php"><span class="glyphicon glyphicon-flag"></span>Calculate CGPA</a></li>
</ul>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-lg-7 col-lg-offset-2">
<form method="post">
<b>Your SGPA : </b>
<input type="text" class="form-control" placeholder="Your SGPA is" value="<?php print round($sgpa, 2) ;?>" readonly></input><br>
<input type="text" name="total_cr" class="form-control" placeholder="Total Credit Hours" required></input>
<table class="table" >
<th>     </th>
<th>Subject Name</th>
<th>Subject GPA</th>
<th>Subject Credit Hour</th>
</table>
<div id="subjects">
<?php include("getdata.php") ?>
</div>
<div>
<br><br>
<input type="button" class="btn btn-success" name="add_item" value="Add More" onClick="addMore();" />
<input type="button" class="btn btn-danger" name="del_item" value="Delete" onClick="deleteRow();" />
<input type="submit" name="save" value="Calculate" class="btn btn-primary"/>
<br><br>
</div>
<div>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
