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ThinkPHP unlimited categories

How to perform unlimited classification based on id and pid

高洛峰 2017-06-05 11:08:01 0  3  799

mysql - Interview question: How to print PHP three-level classification into a table for display?

1. The structure of the classification table category is basically composed of three main fields: id, name, and parent_id. 2. It needs to be printed and displayed in such a table format. 3. How should I write PHP code? (Allows database tables to be redesigned)

漂亮男人 2017-05-16 13:01:50 0  6  807

Preview of the teaching course on September 10, 2018: How to implement paging query data table and classification query for class encapsulation in PHP

Preview of the teaching content of the third online class of PHP Chinese website on September 10, 2018: 1. Teaching topic: How to use PHP to implement paging query data tables? Encapsulate classification queries into classes to achieve code reuse. For more detailed knowledge points, please pay atten...

藏色散人 2018-09-10 10:02:37 0  0  1376

PHP recursively completes infinite classification

$arr=array( array('id'=>1,'area'=>'local','pid'=>0), array('id'=>2,'area'=>'country','pid'=&g

擁抱 2020-02-19 16:59:28 0  0  1242

php - Database design on uncertainty classification

Current database design: School table: school_id, name User table: uid, school_id, school_name Brief description of the problem: For returnee business, there needs to be a study abroad school field in the user field, but there are so many schools in the world that it is impossible to include them al...

習(xí)慣沉默 2017-05-16 13:04:43 0  1  552

php - mysql one-to-many result classification

I found a lot of data from the database, which is a two-dimensional array one by one. The format is as follows: {code...} How can I classify users with the same user_id? The format is as follows: {code...} My approach is as follows, which achieves the goal, but it feels too inefficient: {...

ringa_lee 2017-06-29 10:08:19 0  1  830

javascript - PHP path classification implementation folder display

After I get the file path that needs to be updated through svn, how does PHP classify the path and generate the required format? I tried many methods but I don’t know how to handle it: Obtained path: $arr = [ {code...} I think Required format: 1 => array ( {code...} ), 2 => array ...

滿天的星座 2017-05-16 13:04:57 0  1  497

php - About product Infinitus classification Mysql table design

There are currently three tables, 1: goods main table id name price {code...} The previous table structure is as above. Now because the corresponding type of goods can be one-to-many, one product can correspond to multiple types, I update it every time When the product belongs to a certain type, you...

黃舟 2017-05-16 12:02:51 0  6  779

php - How to implement the background search for the classification list of the classification module? Looking for ideas

To achieve this effect? How should this be achieved? Looking for ideas? How should the front end be laid out? How should the data be processed?

伊謝爾倫 2017-05-16 13:10:38 0  2  542

php - How to realize three-level classification display output?

{code...}

習(xí)慣沉默 2017-05-17 09:55:55 0  4  943

How to implement infinite classification in Laravel7 and above

After studying the laravel7.28 framework on the PHP Chinese website, I don’t know how to implement infinite classification. Please let me know, teachers and students, thank you!

王文軍 2020-11-24 13:41:47 0  1  1171

How to implement infinite classification when PHP calls Java interface through SOAP?

約定 2017-10-26 10:17:37 0  1  1172

php - Looking for a restful interface that returns a classification tree diagram

Looking for a restful interface that returns a classification tree diagram

高洛峰 2017-05-16 13:00:27 0  1  654

Is null more efficient than false and 0 in php?

Because I infer that the memory address space of null has no value, while the other two have addresses

伊謝爾倫 2017-05-16 13:17:02 0  2  555

PHP: Maximize efficiency in finding next letter

Given any character from a to z, what is the most efficient way to get the next letter of the alphabet using PHP?

P粉718730956 2023-10-19 20:50:36 0  2  772

php laravel eloquent multi-level linkage loop laravel view output laravel infinite classification how to write loop

The following is the city model {code...} {code...} The print output data is as follows: associated subcategory $this->childrenCities. If there is a lower-level category, there will be childrenCities. If there is no childrenCities, null will be returned. {code...} { Code...} Currently this is...

PHP中文網(wǎng) 2017-05-16 16:55:30 0  3  1068

PHP determines whether an array is empty, which one is more efficient?

isset count empty

僅有的幸福 2017-05-16 12:58:57 0  4  897

Can PHP and MariaDB provide a more efficient solution for performing multiple inserts?

So I'm trying to build a small database to track the high scores of the pinball machines in our league. I have a table of users that only has an AIid column and a column containing their email address. Then I have a game table which is an AIid column, and the name of the machine. Since it is a many-...

P粉423694341 2024-01-16 20:14:35 0  2  607

php - External network pages display a large number of internal network images. Which method is most efficient?

The server is an intranet, maps an external network address, and has a web program that displays pictures of other servers on the intranet. The current approach is to use PHP's file_get_contents method to download the image, and then use nginx to proxy the external IP address to the PHP program, so ...

過去多啦不再A夢 2017-05-17 09:55:19 0  3  681

What is a faster and more efficient way to check if a key exists in a PHP array?

Consider these two examples...$key='jim';//example1if(isset($array[$key])){//...}//example2if(array_key_exists($key,$array)){ //...} I'm interested in knowing if these two are better. I've been using the first example, but I've seen a lot of people on this site using the second example. So, which on...

P粉512363233 2023-10-16 08:55:37 0  2  705