59 lines
1.4 KiB
PHP
59 lines
1.4 KiB
PHP
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<?php
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/**
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* Basic cash register system.
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* @author: Jacob McCloughan
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* @version: 4/09/2017
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*/
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// Variables
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$input = "";
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$subtotal = 0;
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$total = 0;
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define("tax", .06);
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$items = array();
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// Loop for driving price entry
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while(true) {
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$input = readline("Insert a value (type 'stop' to stop): ");
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if ($input == "stop") {
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echo "Entry halted.\n";
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break;
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}
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if (!is_numeric($input)) {
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echo "Invalid value. Try again.\n";
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}
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echo "Item added.\n";
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$input = round((float)$input, 2);
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array_push($items, $input);
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}
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// Calculates and prints receipt
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$subtotal = array_sum($items);
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$total = round(($subtotal + ($subtotal * tax)), 2);
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echo "\nReceipt:\n";
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foreach ($items as $num=>$item) {
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echo "Item #" . ($num + 1) . " Price: " . $item . "\n";
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}
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echo "\nSubtotal: " . $subtotal . "\n";
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echo "Tax: " . round(($subtotal * tax), 2) . "\n";
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echo "Total: " . $total . "\n\n";
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// Loop for driving change entry
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while(true) {
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if ($total < 0) {
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echo "\nYour change is " . round((-1 * $total), 2) . ". Have a nice day.\n";
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break;
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} else if ($total == 0) {
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echo "\nHave a nice day.\n";
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}
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$input = readline("Insert payment value: ");
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if (!is_numeric($input)) {
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echo "Invalid value. Try again.\n";
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}
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$total = round($total - (float)$input, 2);
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if ($total > 0) {
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echo "Remaining total is: " . $total . "\n";
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}
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}
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?>
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