A simple program to ask the user to give a decimal value and then convert it into hexadecimal equivalent using PHP programming language.
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Program Listing
index.htm
<?php
$output = "";
if (isset($_POST["txtNumber"])) {
$output = '<div class="output">Hexadecimal Value = '.
dechex($_POST["txtNumber"]).
'</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>Decimal To Hexadecimal In PHP</title>
<style>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
background-color: #eee;
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
font-family: sans-serif;
}
form {
background: #fff;
padding: 30px;
border-radius: 10px;
}
h2 {
margin-bottom: 20px;
}
label,
input,
button {
display: block;
width: 100%;
font-size: 14px;
}
label {
padding: 5px 0;
}
input {
padding: 5px;
margin-bottom: 5px;
}
button {
padding: 8px 0;
background-color: #03a9f4;
border: none;
border-radius: 3px;
color: #fefefe;
cursor: pointer;
}
.output {
margin-top: 10px;
background-color: #607d8b;
padding: 12px 0;
color: #fefefe;
text-align: center;
}
</style>
</head>
<body>
<form action="" method="post">
<h1>Decimal To Hexadecimal In PHP</h1>
<h2>Jake R. Pomperada, MAED-IT, MIT</h2>
<label for="txtNumber">Enter a number to convert:</label>
<input type="number" name="txtNumber" id="txtNumber" value="<?= isset($_POST["txtNumber"])?$_POST["txtNumber"]:""; ?>" autofocus>
<button type="submit">Convert To Hexadecimal</button>
<?= $output; ?>
</form>
</body>
</html>
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