119 lines
4.2 KiB
PHP
119 lines
4.2 KiB
PHP
<!DOCTYPE html>
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<html lang="en">
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<head>
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<?php require_once "../../base/meta.php" ?>
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<title>Calculator</title>
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<script src="formValidation.js"></script>
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</head>
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<body>
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<?php
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require_once "../../base/settings.php";
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require_once "../../base/headers.php";
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Headers::html();
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if (
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isset($_POST["operand1"], $_POST["operand2"], $_POST["operator"]) &&
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is_numeric($_POST["operand1"]) &&
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is_numeric($_POST["operand2"])
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) {
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$operand1 = $_POST["operand1"];
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$operand2 = $_POST["operand2"];
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$operator = $_POST["operator"];
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switch ($operator) {
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case "addition":
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$result = $operand1 + $operand2;
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break;
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case "subtraction":
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$result = $operand1 - $operator2;
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break;
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case "multiplication":
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$result = $operand1 * $operand2;
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break;
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case "division":
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if ($operand2 == 0) {
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$result = "Not defined";
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break;
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}
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$result = $operand1 / $operand2;
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break;
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}
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} else if (isset($_POST["firstLoad"])) {
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$errors = [];
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if (!isset($_POST["operand1"]))
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array_push($errors, "Operand 1 not set");
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else if (!is_numeric($_POST["operand1"]))
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array_push($errors, "Operand 1 not numeric");
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if (!isset($_POST["operand2"]))
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array_push($errors, "Operand 2 not set");
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else if (!is_numeric($_POST["operand2"]))
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array_push($errors, "Operand 2 not numeric");
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if (!isset($_POST["operator"]))
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array_push($errors, "No operator chosen");
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}
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?>
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<div class="form-check form-switch m-3">
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<input class="form-check-input" type="checkbox" role="switch" id="clientSideValidate">
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<label class="form-check-label" for="clientSideValidate">Use Client Side Validation</label>
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</div>
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<form method="post" class="p-3 needs-validation" novalidate>
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<div class="mb-3">
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<label class="form-label" for="operand1">Operand 1</label>
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<input class="form-control" id="operand1" type="number" name="operand1" value="<?php echo isset($result) && is_numeric($result) ? $result : 0 ?>" required step="any" />
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<div class="invalid-feedback">
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Please enter a number
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</div>
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</div>
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<div class="mb-3">
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<label class="form-label" for="operand2">Operand 2</label>
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<input class="form-control" id="operand2" type="number" name="operand2" value="0" required step="any" />
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<div class="invalid-feedback">
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Please enter a number
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</div>
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</div>
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<label class="form-label">Operator</label>
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<div class="form-check">
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<input class="form-check-input" id="additionRadio" type="radio" name="operator" value="addition" <?php echo array_key_exists("operator", $_POST) && $_POST['operator'] == 'addition' ? 'checked' : '' ?> required />
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<label class="form-check-label" for="additionRadio">+</label>
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</div>
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<div class="form-check">
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<input class="form-check-input" id="subtractionRadio" type="radio" name="operator" value="subtraction" <?php echo array_key_exists("operator", $_POST) && $_POST['operator'] == 'subtraction' ? 'checked' : '' ?> required />
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<label class="form-check-label" for="subtractionRadio">-</label>
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</div>
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<div class="form-check">
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<input class="form-check-input" id="multiplicationRadio" type="radio" name="operator" value="multiplication" <?php echo array_key_exists("operator", $_POST) && $_POST['operator'] == 'multiplication' ? 'checked' : '' ?> required />
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<label class="form-check-label" for="multiplicationRadio">*</label>
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</div>
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<div class="form-check">
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<input class="form-check-input" id="divisionRadio" type="radio" name="operator" value="division" <?php echo array_key_exists("operator", $_POST) && $_POST['operator'] == 'division' ? 'checked' : '' ?> required />
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<label class="form-check-label" for="divisionRadio">/</label>
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<div class="invalid-feedback">
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Please choose an operator
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</div>
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</div>
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<button class="btn btn-primary mt-3" name="firstLoad" value="0">Berechnen</button>
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</form>
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<div class="spacer-1"></div>
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<?php if (isset($result)) { ?>
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<h2 class="m-3">
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Result: <?= $result ?>
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</h2>
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<?php } ?>
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<?php if (isset($errors)) {
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foreach ($errors as $error) { ?>
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<h2 class="text-danger"><?= $error ?></h2>
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<?php }
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} ?>
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</body>
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</html>
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