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Three-level classification like query queries many IDs and needs to find the corresponding parent ID and combine them based on the parent ID. How should the data be combined based on the parent ID?
Three-level classification like query queries many IDs and needs to find the corresponding parent ID and combine them based on the parent ID. How should the data be combined based on the parent ID?
This is the data obtained. The parent id is parent_id
<code>Array
(
[0] => Array
(
[department_id] => 1
[parent_id] => 0
[department_code] => xsb1
[department_name] => 销售部1
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[1] => Array
(
[department_id] => 2
[parent_id] => 1
[department_code] => xs1q
[department_name] => 销售1区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[2] => Array
(
[department_id] => 3
[parent_id] => 2
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[3] => Array
(
[department_id] => 4
[parent_id] => 2
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[4] => Array
(
[department_id] => 5
[parent_id] => 2
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[5] => Array
(
[department_id] => 6
[parent_id] => 2
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[6] => Array
(
[department_id] => 7
[parent_id] => 1
[department_code] => xs2q
[department_name] => 销售2区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[7] => Array
(
[department_id] => 8
[parent_id] => 7
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[8] => Array
(
[department_id] => 9
[parent_id] => 7
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[9] => Array
(
[department_id] => 10
[parent_id] => 7
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[10] => Array
(
[department_id] => 11
[parent_id] => 7
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[11] => Array
(
[department_id] => 12
[parent_id] => 0
[department_code] => xsb2
[department_name] => 销售部2
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[12] => Array
(
[department_id] => 13
[parent_id] => 12
[department_code] => xs3q
[department_name] => 销售3区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[13] => Array
(
[department_id] => 14
[parent_id] => 13
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[14] => Array
(
[department_id] => 15
[parent_id] => 13
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[15] => Array
(
[department_id] => 16
[parent_id] => 13
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[16] => Array
(
[department_id] => 17
[parent_id] => 13
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[17] => Array
(
[department_id] => 18
[parent_id] => 12
[department_code] => xs4q
[department_name] => 销售4区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[18] => Array
(
[department_id] => 19
[parent_id] => 18
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[19] => Array
(
[department_id] => 20
[parent_id] => 18
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
[20] => Array
(
[department_id] => 21
[parent_id] => 18
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
[21] => Array
(
[department_id] => 22
[parent_id] => 18
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
)</code>This is still a three-level classification. It is possible that the last level is found. Then there are two more levels. How to merge it?
Reply content:This is the data obtained. The parent id is parent_id
<code>Array
(
[0] => Array
(
[department_id] => 1
[parent_id] => 0
[department_code] => xsb1
[department_name] => 销售部1
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[1] => Array
(
[department_id] => 2
[parent_id] => 1
[department_code] => xs1q
[department_name] => 销售1区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[2] => Array
(
[department_id] => 3
[parent_id] => 2
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[3] => Array
(
[department_id] => 4
[parent_id] => 2
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[4] => Array
(
[department_id] => 5
[parent_id] => 2
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[5] => Array
(
[department_id] => 6
[parent_id] => 2
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[6] => Array
(
[department_id] => 7
[parent_id] => 1
[department_code] => xs2q
[department_name] => 销售2区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[7] => Array
(
[department_id] => 8
[parent_id] => 7
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[8] => Array
(
[department_id] => 9
[parent_id] => 7
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[9] => Array
(
[department_id] => 10
[parent_id] => 7
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[10] => Array
(
[department_id] => 11
[parent_id] => 7
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[11] => Array
(
[department_id] => 12
[parent_id] => 0
[department_code] => xsb2
[department_name] => 销售部2
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[12] => Array
(
[department_id] => 13
[parent_id] => 12
[department_code] => xs3q
[department_name] => 销售3区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[13] => Array
(
[department_id] => 14
[parent_id] => 13
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[14] => Array
(
[department_id] => 15
[parent_id] => 13
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[15] => Array
(
[department_id] => 16
[parent_id] => 13
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[16] => Array
(
[department_id] => 17
[parent_id] => 13
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[17] => Array
(
[department_id] => 18
[parent_id] => 12
[department_code] => xs4q
[department_name] => 销售4区
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[18] => Array
(
[department_id] => 19
[parent_id] => 18
[department_code] => xs1ks
[department_name] => 销售1科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039207
[add_user_id] => 1
[edit_time] => 1470039207
[edit_user_id] => 1
)
[19] => Array
(
[department_id] => 20
[parent_id] => 18
[department_code] => xs2ks
[department_name] => 销售2科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
[20] => Array
(
[department_id] => 21
[parent_id] => 18
[department_code] => xs3ks
[department_name] => 销售3科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
[21] => Array
(
[department_id] => 22
[parent_id] => 18
[department_code] => xs4ks
[department_name] => 销售4科室
[department_phone] =>
[department_cornet] =>
[department_description] =>
[department_sort] => 0
[is_delete] => 1
[department_status] => 1
[add_time] => 1470039208
[add_user_id] => 1
[edit_time] => 1470039208
[edit_user_id] => 1
)
)</code>I only think of using
foreach
to put data with the same parent ID into the same array with parent_id as the key. If you want parent information, you can also make a logical judgment
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><code>$result =[]
foreach($list as $key => $val){
if($val['parent_id'] != 0) {
$result[$val['parent_id']][] = $val;
}
}
</code></pre><div class="contentsignin">Copy after login</div></div>
The requirement is to search and then find all parents and subsets of the search results. The tree diagram displays the keywords in red
My approach is
1. Create a new array to save the ID of all the data that needs to be displayed. The initial data is the queried ID2. First find all the parents based on the query ID and put them in the new array
3. Query all based on the ID There may be multiple subset ids here. I loop and use array_unshift to put them into the new array
4. Deduplicate the ids of the new array (the final combination here is a one-dimensional array)
5. Loop the array id to query all data
6 .Category combination
Thanks to those who answered. If you have a better way, please share it, haha
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Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
