使用JSON进行计算的PHP脚本

<?php
$json = '{
    "operation": "addition",
    "operands": [2, 3]
}';

$data = json_decode($json, true);

if ($data !== null) {
    $operation = $data['operation'];
    $operands = $data['operands'];

    switch ($operation) {
        case 'addition':
            $result = array_sum($operands);
            break;
        case 'subtraction':
            $result = $operands[0] - $operands[1];
            break;
        case 'multiplication':
            $result = $operands[0] * $operands[1];
            break;
        case 'division':
            $result = $operands[0] / $operands[1];
            break;
        default:
            $result = null;
            break;
    }

    echo "Result: " . $result;
} else {
    echo "Invalid JSON";
}
?>