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How to use recursion to traverse all sub-categories of multiple parallel categories and count the number of each sub-category
- WBOYOriginal
- 2016-08-18 09:16:341032browse
Acquired an array from a table in the database and cut it to facilitate analysis. The cut array is as follows:
<code>$arr = array(
0 =>
array(
'uid' => 5,
'username' => '',
'password' => '',
'user_status' => 1,
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '13863810574',
'realname' => '汪精卫',
'level' => '普通会员',
'trade_account' => '568050269',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
1 =>
array(
'uid' => '6',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18807556392',
'realname' => '周杰伦',
'level' => '普通会员',
'trade_account' => '12435356',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
2 =>
array(
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
3 =>
array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
4 =>
array(
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
5 =>
array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
);</code>
Now I want to process this multi-dimensional array. The rule is: when the value of recom_account of key a is equal to the trade_account of key b, then the key-value pair of a is a direct subcategory of the key-value pair of b. When the recom_account of key c is equal to the key of a When trade_account is used, the c key-value pair is an indirect subcategory of the b key-value pair. Each key-value pair (category) can have multiple direct subcategories, but only corresponds to one direct parent category, that is, trade_account is unique. recom_account is not unique. The expected return result is: each key-value pair adds a count key whose value is the number of all direct subcategories, a childlist key whose value is a multidimensional array that records all the information of the subcategory, and a total_count key whose value is The value is the number of all subcategories. A haschild field of 1 indicates that the category has subcategories (including direct subcategories and indirect subcategories), and a haschild field of 0 indicates that there are no subcategories. As in the above array, it is expected to generate the following format.
$list = array(
<code> 0 =>
array(
'uid' => 5,
'username' => '',
'password' => '',
'user_status' => 1,
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '13863810574',
'realname' => '汪精卫',
'level' => '普通会员',
'trade_account' => '568050269',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => '2',
'total_count' => '4',
'childlist' => array(
9 => array(//9为子分类的uid
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 1,
'total_count' => 2,
'childlist' => array(
8 => array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 1,
'total_count'=>1,
'childlist' => array(
7 => array(//7为子分类的uid
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
)
)
)
)
),
10 => array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
)
),
1 =>
array(
'uid' => '6',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18807556392',
'realname' => '周杰伦',
'level' => '普通会员',
'trade_account' => '12435356',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
2 =>
array(
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
3 =>
array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
4 =>
array(
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
5 =>
array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
);
</code>
I have referred to http://www.thinkphp.cn/topic/... for debugging, but failed to obtain the return value.
Reply content:
Acquired an array from a table in the database and cut it to facilitate analysis. The cut array is as follows:
<code>$arr = array(
0 =>
array(
'uid' => 5,
'username' => '',
'password' => '',
'user_status' => 1,
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '13863810574',
'realname' => '汪精卫',
'level' => '普通会员',
'trade_account' => '568050269',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
1 =>
array(
'uid' => '6',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18807556392',
'realname' => '周杰伦',
'level' => '普通会员',
'trade_account' => '12435356',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
2 =>
array(
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
3 =>
array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
4 =>
array(
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
),
5 =>
array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
),
);</code>
Now I want to process this multi-dimensional array. The rule is: when the value of recom_account of key a is equal to the trade_account of key b, then the key-value pair of a is a direct subcategory of the key-value pair of b. When the recom_account of key c is equal to the key of a When trade_account is used, the c key-value pair is an indirect subcategory of the b key-value pair. Each key-value pair (category) can have multiple direct subcategories, but only corresponds to one direct parent category, that is, trade_account is unique. recom_account is not unique. The expected return result is: each key-value pair adds a count key whose value is the number of all direct subcategories, a childlist key whose value is a multidimensional array that records all the information of the subcategory, and a total_count key whose value is The value is the number of all subcategories. A haschild field of 1 indicates that the category has subcategories (including direct subcategories and indirect subcategories), and a haschild field of 0 indicates that there are no subcategories. As in the above array, it is expected to generate the following format.
$list = array(
<code> 0 =>
array(
'uid' => 5,
'username' => '',
'password' => '',
'user_status' => 1,
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '13863810574',
'realname' => '汪精卫',
'level' => '普通会员',
'trade_account' => '568050269',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => '2',
'total_count' => '4',
'childlist' => array(
9 => array(//9为子分类的uid
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 1,
'total_count' => 2,
'childlist' => array(
8 => array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 1,
'total_count'=>1,
'childlist' => array(
7 => array(//7为子分类的uid
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
)
)
)
)
),
10 => array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
)
),
1 =>
array(
'uid' => '6',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18807556392',
'realname' => '周杰伦',
'level' => '普通会员',
'trade_account' => '12435356',
'reg_time' => null,
'recom_account' => '243556',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
2 =>
array(
'uid' => '7',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18316850912',
'realname' => '奥巴马',
'level' => '普通会员',
'trade_account' => '83475535',
'reg_time' => null,
'recom_account' => '834755351',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
3 =>
array(
'uid' => '8',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879126845',
'realname' => '大卫',
'level' => '普通会员',
'trade_account' => '834755351',
'reg_time' => null,
'recom_account' => '154548',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
4 =>
array(
'uid' => '9',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '黄建',
'level' => '普通会员',
'trade_account' => '154548',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '1',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
5 =>
array(
'uid' => '10',
'username' => '',
'password' => '',
'user_status' => '1',
'login_number' => null,
'last_login_time' => null,
'last_login_ip' => null,
'nickname' => '',
'mobile' => '18879701814',
'realname' => '张科',
'level' => '普通会员',
'trade_account' => '9527',
'reg_time' => null,
'recom_account' => '568050269',
'total' => null,
'is_apply' => '0',
'is_checked' => '0',
'haschild' => '0',
'count' => 0,
'total_count' => 0,
'childlist' => null,
),
);
</code>
I have referred to http://www.thinkphp.cn/topic/... for debugging, but failed to obtain the return value.
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