PHP 数组表示：如何将多层嵌套数据转换为 PHP 数组

$myArray = array( array( 'id' => 6, 'title' => '平台管理', 'icon' => 'bi bi-border-inner', 'child' => array( array( 'id' => 9, 'title' => '答题记录', 'icon' => 'bi bi-calendar-event', 'href' => 'ryadmin/Record/index', 'target' => '_self' ), array( 'id' => 17, 'title' => '商家管理', 'icon' => 'bi bi-badge-vo', 'href' => 'ryadmin/Merchant/index', 'target' => '_self' ), array( 'id' => 16, 'title' => 'vip等级设置', 'icon' => 'bi bi-alarm-fill', 'href' => 'ryadmin/Level/index', 'target' => '_self' ), array( 'id' => 15, 'title' => '题目分类', 'icon' => 'bi bi-box', 'href' => 'ryadmin/Fenlei/index', 'target' => '_self' ), array( 'id' => 14, 'title' => '支付宝提现处理', 'icon' => 'bi bi-asterisk', 'href' => 'ryadmin/Zfbcash/index', 'target' => '_self' ), array( 'id' => 13, 'title' => '轮播图设置', 'icon' => 'bi bi-basket2-fill', 'href' => 'ryadmin/Adv/index', 'target' => '_self' ), array( 'id' => 12, 'title' => '广告文章管理', 'icon' => 'bi bi-bag-x', 'href' => 'ryadmin/Article/index', 'target' => '_self' ), array( 'id' => 11, 'title' => '相关设置', 'icon' => 'bi bi-aspect-ratio', 'href' => 'ryadmin/Config/index', 'target' => '_self' ), array( 'id' => 10, 'title' => '资金流水', 'icon' => 'bi bi-card-text', 'href' => 'ryadmin/Moneylog/index', 'target' => '_self' ), array( 'id' => 8, 'title' => '用户管理', 'icon' => 'bi bi-pin-map', 'href' => 'ryadmin/User/index', 'target' => '_self' ), array( 'id' => 7, 'title' => '题库管理', 'icon' => 'bi bi-badge-ad', 'href' => 'ryadmin/Question/index', 'target' => '_self' ) ), 'href' => 'ryadmin/Pingtai/top_index', 'target' => '_self' ), array( 'id' => 1, 'title' => '系统管理', 'icon' => 'bi bi-bricks', 'child' => array( array( 'id' => 5, 'title' => '菜单管理', 'icon' => 'bi bi-dice-1', 'href' => 'ryadmin/System/menu_index', 'target' => '_self' ), array( 'id' => 4, 'title' => '员工管理', 'icon' => 'bi bi-person-check', 'href' => 'ryadmin/System/user_index', 'target' => '_self' ), array( 'id' => 3, 'title' => '角色管理', 'icon' => 'bi bi-basket', 'href' => 'ryadmin/System/role_index', 'target' => '_self' ), array( 'id' => 2, 'title' => '部门管理', 'icon' => 'bi bi-wallet', 'href' => 'ryadmin/System/depart_index', 'target' => '_self' ) ), 'href' => 'ryadmin/System/top_index', 'target' => '_self' ) );