<div id="content" class="row">
<div class="col-md-12">
<?php
$amount = $_POST["convertAmount"];
$unit = htmlentities($_POST["convertUnit"]);
$pattern = "/^[1-9][0-9]*\$/";
if ($unit != "noEntry") {
$trimmedAmount = trim($amount);
if (strlen($trimmedAmount) > 0) {
preg_match($pattern, $amount, $matches);
if (empty($matches)) {
echo '<div class = "error">You did not input a valid number.</div>';
} else {
ConvertLiquid($amount, $unit);
}
} else {
echo '<div class = "error">You did not enter a number.</div>';
}
} else {
$pattern = "/^[1-9][0-9]*\$/";
$trimmedAmount = trim($amount);
if (strlen($trimmedAmount) == 0) {
echo '<div class = "error">You did not enter an amount.<br>You did not select a unit to convert.</div>';
} else {
if (strlen($trimmedAmount) > 0) {
preg_match($pattern, $amount, $matches);
if (empty($matches)) {
echo '<div class = "error">You did not input a valid number.<br>You did not select a unit to convert.</div>';
}
/* Check if an amount has been entered */
if (!is_valid(sanitize_input($_POST[$requiredField['amount']]))) {
array_push($errors, [$requiredField['amount'] => $errorMessage['no_amount']]);
}
/* If an amount has been entered and is valid, check if numeric and greater than zero */
if (is_valid(sanitize_input($_POST[$requiredField['amount']])) && !is_num_above_zero($_POST[$requiredField['amount']])) {
array_push($errors, [$requiredField['amount'] => $errorMessage['num_above_zero']]);
}
/* Check if a unit has been selected */
if ($_POST[$requiredField['unit']] == 'default') {
array_push($errors, [$requiredField['unit'] => $errorMessage['no_unit']]);
}
/* If there are no errors, convert! */
if (!has_items($errors)) {
/* Send the submitted values to the convert function */
$convertedValue = ConvertLiquid($_POST[$requiredField['amount']], $_POST[$requiredField['unit']]);
}
} else {
if (isset($_POST['reset'])) {
unset($errors);
}
}
?>
<?php
include 'partials/header.php';
?>
<div class="container">
<div class="page-header">
<h1><i class="fa fa-tint fa-fw"></i> Welcome to the Liquid Conversion Tool</h1>
