In this tutorial, I will show how to write a PHP program that will ask the user to give a number and then the program will convert the given number to its square equivalent.
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Program Listing
<html>
<head>
<title>Square Root a Number in PHP </title>
</head>
<body>
<style type="text/css">
body {
font-family: arial;
size: 12px;
};
</style>
<?php
$num_values = $_POST['num_val'];
if(isset($_POST['submit'])) {
$square_root = sqrt($num_values);
$results ="The Square Root number
equivalent of $num_values is $square_root.";
}
if(isset($_POST['clear'])) {
$num_values = "";
$results = "";
}
?>
<h2> Square Root a Number in PHP </h2>
<p> Mr. Jake Rodriguez Pomperada,MAED-IT, MIT </p>
<form method="post">
<p>Give a Number <input
type="numeric" name="num_val"
value="<?php echo $num_values; ?>" autofocus required /></p>
<input type="submit" name="submit"
title="Click here to compute the square value. "
value="Submit" />
<input type="submit" name="clear"
title="Click here to clear the textbox."
value="Clear" />
</form>
<?php
echo $results;
?>
</body>
</html>
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