How to design the product table and product attributes in the mall is better

My product is like an iPhone 6 s mobile phone, and the color is Champagne, silver, and gray. There are 16G, 32G, and 64G in different colors. You think it is a color + version + product ID. in this way, a product has many products, such as the

Javascript-retrieve page resources referenced by Pages

For example, if there is a website a.com, then there is a resource file named B .css. I want to know which pages are referenced by this resource file under this website. can I operate it with a tool? For example, a website A.comAnd a resource file

Ask an array question

I have an array of data above. can I change it to the following? The main idea is to merge the same places in the two arrays, store the different places, and re-open an array. I have an array of data above. can I change it to the following? The

Questions about the design of the Mysql User message system

1. the current website has two types of messages: full-site message and private message. (If private messages are relatively well designed, do not repeat them. The key is full-site messages. n * m design estimates that member tables will pop up ...)

PHP quick sorting

Php quick method: the two statements in the loop are as follows: Php quick method: the two statements in the loop can be written above, and the following returns are incorrect; Error: Reply content: Php quick method: the two statements in

Regular expression-PHP regular expression replacement

I have been confused about regular expression Replacement. the requirement is as follows: some labels in the content {code ...} then replace the item with the following: {code ...} to put it simply, img puts the figure on the outer package and

Laravel custom error page 404

I added a 404. blade. php variable under resourcesviewserrors of laravel project. because this template requires a menu classification variable, which method should I pass this variable! Below is my directory structure. below is the variable used in

Javascript-self-developed paging, I feel that ajax is not well written here and how to improve it;

{Code ...} Title --> 电影名:惊天魔盗团--> -->

For help: how does mysql search results based on the given ID sequence?

id3

Dear friends, I have encountered a difficult problem and need your help. There are two post tables: article table. Record table: a record table used to record the reading sequence of users. The record table uses a postid field to record the primary

Php lottery algorithm

What are some good lucky draw algorithms available to the omnipotent great gods. What are some good lucky draw algorithms available to the omnipotent great gods. Reply content: What are some good lucky draw algorithms available to the omnipotent

How does one compare the time in the php7 string format with the underlying implementation?

{Code ...} If ('2014-9-10 12:01:08 ' Reply content: If ('2014-9-10 12:01:08 ' It must be a string comparison and won't be converted to you. You can try If ('2014-9-33 12:01:08 '

Php simulation algorithm design

Add different labels to data. For example, scenic spots such as hot, top, and sellest are also the same. Design the itinerary based on user behavior preferences. [Refer to mxtrip ]. The above is roughly the application requirement, but in

How can laravel delete a package without the composerupdate command?

Laravel can install a package like this: {code...}. how can I delete it? The composerupdate command is not used. because the content of the vender folder has been changed, composerupdate is used to update the file. Laravel can install a package as

Is there a PHP class library and function module sharing website like phpclasses in China?

Q: Is there a PHP class library and function module sharing website like phpclasses in China? Some extensions can be used directly or learned. for example, is there a PHP class library and function module sharing website like phpclasses in China?

Mysql-[PHP] cannot find a better solution when designing the curriculum and querying data?

This course schedule has been plagued for a long time. on the page, I will query it based on the school year and semester, first, I can get the student's student ID -- so I get the student's class -- my data storage field, for example, the

Opened, the javascript-JStree plug-in, is invalid when opened is set to false when selected is used together. how can this problem be solved?

1. configure state & amp; gt; [& #039; opened & #039; & amp; gt; false, & #039; selected & #039; when using the JStree plug-in; & amp; gt; true], so that opened is equal to false and does not work. why? Remove selected. 1. when using the JStree plug-

Data transfer in the javascript-foundation6 pop-up window

1. ci is my php backend framework, and foundation6 is my front-end Framework. write a background program to operate on the data in my data list. each row is deleted, it is required that the data of the current row be deleted every time you click

Register_shutdown_function () No Callback?

{Code...} in this case, register_shutdown_function () is not triggered. why? Thank you. In this case, register_shutdown_function () is not triggered. why? Thank you. Reply content: In this case, register_shutdown_function () is not

Thinkphp template assignment

{Code...} if my {$ vo. select} is an array at this time, how can I traverse this array in the template? $ User = M ('user'); $ list = $ User-> limit (10)-> select (); $ this-> assign ('list ', $ list ); {$ Vo. select} If my{$ Vo.

Php file read/write lock

The read/write locks of PHP files are explained in detail. the read/write problems always exist. the file lock is designed to solve this problem. In fact, it is a simple semaphore. Read-write relevance refers to the random conflict between file data

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