php如何捕获解析json语法错误_phpjson_decode加标志与异常包装返回提示

function safeJsonDecode($jsonString) {
    $data = json_decode($jsonString, true);
    
    if (json_last_error() === JSON_ERROR_NONE) {
        return ['success' => true, 'data' => $data];
    }

    return [
        'success' => false,
        'error'   => json_last_error_msg(),
        'raw'     => $jsonString
    ];
}

try {
    $data = json_decode($jsonString, true, 512, JSON_THROW_ON_ERROR);
    echo "解析成功";
} catch (JsonException $e) {
    echo "JSON 解析失败: " . $e->getMessage();
}

function parseJson($jsonString) {
    // 去除 BOM 或空白字符干扰
    $jsonString = trim($jsonString);
    if (substr($jsonString, 0, 3) === pack("CCC", 0xEF, 0xBB, 0xBF)) {
        $jsonString = substr($jsonString, 3);
    }

    if (PHP_VERSION_ID >= 70300) {
        try {
            $data = json_decode($jsonString, true, 512, JSON_THROW_ON_ERROR);
            return ['success' => true, 'data' => $data];
        } catch (JsonException $e) {
            return [
                'success' => false,
                'error'   => $e->getMessage(),
                'code'    => $e->getCode()
            ];
        }
    } else {
        $data = json_decode($jsonString, true);
        if (json_last_error() === JSON_ERROR_NONE) {
            return ['success' => true, 'data' => $data];
        }
        return [
            'success' => false,
            'error'   => json_last_error_msg(),
            'hint'    => '请检查 JSON 格式，如引号、逗号、括号是否正确'
        ];
    }
}

$result = parseJson('{"name": "张三", "age": }');
if (!$result['success']) {
    echo "错误提示：" . $result['error'];
}