PHP 变量小驼峰变量到下划线形式

入坑，项目中没按要求编码，入参、出参，出统一转换。
/** 转换 小驼峰变量到下划线形式
 * 如 goodsName 转换为 goods_name
 * @param array $list 待转换数据
 * @return array
 */
function convertVarToUnderline($list = [])
{
    if (!is_array($list)) return $list;

    $newList = [];
    foreach ($list as $k => $v) {

        $k = strtolower(preg_replace('/[A-Z]/', '_$0', $k));

        if (is_array($v)) {
            $newList[$k] = convertVarToUnderline($v);
        } else {
            $newList[$k] = $v;
        }
    }
    return $newList;
}


/** 转换 下划线形式 到 小驼峰变量
 * 如 goods_name 转换为 goodsName
 * @param array $list 待转换数据
 * @return array
 */
function convertUnderlineToLowerCamelCase($list = [])
{
    if (!is_array($list)) return $list;

    $newList = [];
    foreach ($list as $k => $v) {

        $k = preg_replace_callback('/_([a-zA-Z])/', function ($match) {
            return strtoupper($match[1]);
        }, $k);

        if (is_array($v)) {
            $newList[$k] = convertUnderlineToLowerCamelCase($v);
        } else {
            $newList[$k] = $v;
        }
    }
    return $newList;
}

$arr = [
    'goodsName' => '',
    'pageSize' => '',
    'list' => ['goodsList' => ['timeA' => ['timeB' => ['timeC' => ['timeD' => '']]]]],
];

print_r(convertVarToUnderline($arr));

$arr = [
    'goods_name' => '',
    'page_size' => '',
    'list' => ['goods_list' => ['time_a' => ['time_b' => ['time_c' => ['time_d' => '']]]]],
];

print_r(convertUnderlineToLowerCamelCase($arr));
相关文章：
