Steven/HexDecBinCalc
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Steven Tracey
2022-11-03 12:47:44 -04:00
parent 3c9c8e200f
commit e96329ac03
7 changed files with 249 additions and 0 deletions
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index.php Normal file
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<?php
include "./conversions.php";
?>
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="./style.css">
<title>HexDecBin Calc</title>
</head>
<body>
<div class="inputs">
<form action="index.php" method="get">
<?php
session_start();
$bin = 0;
$dec = 0;
$hex = 0;
$new = false;
if (!isset($_GET['binary']) ||
!isset($_GET['decimal']) ||
!isset($_GET['hexadecimal'])) {
$new = true;
}
if (!isset($_SESSION['bin']) ||
!isset($_SESSION['dec']) ||
!isset($_SESSION['hex'])) {
$_SESSION['bin'] = 0;
$_SESSION['dec'] = 0;
$_SESSION['hex'] = 0;
}
if (!$new) {
$last_bin = $_SESSION['bin'];
$last_dec = $_SESSION['dec'];
$last_hex = $_SESSION['hex'];
$bin = $_GET['binary'];
$dec = $_GET['decimal'];
$hex = $_GET['hexadecimal'];
if ($bin == 0 && $dec == 0) {
$bin = hex_to_binary($hex);
$_SESSION['bin'] = $bin;
$dec = hex_to_decimal($hex);
$_SESSION['dec'] = $dec;
$_SESSION['hex'] = $hex;
} else if ($bin == 0 && $hex == 0) {
$bin = decimal_to_binary($dec);
$_SESSION['bin'] = $bin;
$_SESSION['dec'] = $dec;
$hex = decimal_to_hex($dec);
$_SESSION['hex'] = $hex;
} else if ($dec == 0 && $hex == 0) {
$_SESSION['bin'] = $bin;
$dec = binary_to_decimal($bin);
$_SESSION['dec'] = $dec;
$hex = binary_to_hex($bin);
$_SESSION['hex'] = $hex;
}
else {
if ($bin == $last_bin && $dec == $last_dec && $hex != $last_hex) {
$bin = hex_to_binary($hex);
$_SESSION['bin'] = $bin;
$dec = hex_to_decimal($hex);
$_SESSION['dec'] = $dec;
$_SESSION['hex'] = $hex;
} else if ($bin == $last_bin && $hex == $last_hex && $dec != $last_dec) {
$bin = decimal_to_binary($dec);
$_SESSION['bin'] = $bin;
$_SESSION['dec'] = $dec;
$hex = decimal_to_hex($dec);
$_SESSION['hex'] = $hex;
} else if ($dec == $last_dec && $hex == $last_hex && $bin != $last_bin) {
$_SESSION['bin'] = $bin;
$dec = binary_to_decimal($bin);
$_SESSION['dec'] = $dec;
$hex = binary_to_hex($bin);
$_SESSION['hex'] = $hex;
} else {
$bin = 0;
$dec = 0;
$hex = 0;
}
}
}
?>
<div>
<label for="binary">Binary: </label>
<input type="text" id="binary" name="binary" value="<?php echo $bin; ?>">
</div>
<div>
<label for="decimal">Decimal: </label>
<input type="text" id="decimal" name="decimal" value="<?php echo $dec; ?>">
</div>
<div>
<label for="hexadecimal">Hexadecimal: </label>
<input type="text" id="hexadecimal" name="hexadecimal" value="<?php echo $hex; ?>">
</div>
<div>
<input class="submit" type="submit">
</div>
</form>
</div>
</body>
</html>