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Is this explanation of cross-controller correct?

At 6 minutes, across controllers, your name is not given a value, how can it exist?

Ⅴｉρ用戶 2018-07-22 15:17:43

How to operate ajax in ThinkPHP?

Can $this->ajaxReturn and $this->assign in ajax be written in the same method? Can they exist at the same time?

LRTRL 2017-07-18 09:26:32

javascript - Function declaration and declared variable exist at the same time, what are the rules for promotion?

We know that declaring variables will be promoted: {code...} At the same time, function declarations will also be promoted: {code...} So, when there are both variable and function declarations, who will be promoted to the higher level? How to sort? For example: {code...} Is that so? {code...} Becaus...

高洛峰 2017-05-18 10:55:55

PhpStorm 2016.2 + Laravel5.3 + Command Line Tool - Artisan

The configuration according to this http://confluence.jetbrains.c... is correct and easy to use when using the old version of Phpstrom and laravel5.2. When switching to phpstrom2016.2 laravel5.3, an error was reported during configuration. Anyone know the reason? exist...

为情所困 2017-05-16 16:51:14

linux - Very psychedelic No such file or directory, please give me a scientific explanation

To upgrade OpenResty, rename the sbin/nginx file, and the psychedelic scene appears: {code...} However, /usr/local/openresty/nginx/sbin/ and nginx both exist, {code...} If you rename it in the directory, {code...} Please let me know why...

某草草 2017-06-12 09:24:27

Differences in behavior of internally redefined Javascript functions

When I was reverse engineering some JavaScript code, I came across this function: functionfun1(){constarr=["a","b","c","d","e"];fun1=function(){ returnarr;};returnfun1();} To me it looks redundant. The code seems to: declare an array arr. exist

P粉805931281 2024-01-10 18:01:18

Error starting the same maven project twice on the same server with different ports

A depends on B, mvn compile B {code...} starts two web services, AA_test will affect AA, how to solve it. AA sets the third-party callback address to axxxxx.com, and AA_test sets the third-party callback address to a_txxxxx.com. However, the third-party callback always calls back to axxxxx.com. exis...

某草草 2017-05-16 13:32:52

Images are uploaded asynchronously. If the user does not submit the form, what should I do if there are many useless images?

Images are uploaded asynchronously. If the user does not submit the form, what should I do if there are many useless images? Asking for help, gentlemen! ! Dear gentlemen! I upload the image asynchronously, but if the user does not submit the form, this useless image will exist! It’s no use either! H...

七喜 2018-11-12 14:26:37

Is there a log of additions, deletions and modifications in MongoDB?

Can you find the statements that perform additions, deletions, and modifications in the MongoDB log? Similar to mysql's binlog, I only found some connection information in mongodb.log. There is no log of additions, deletions, and modifications. I want to get the statements executed by the database o...

天蓬老师 2017-05-17 10:02:19

Deprecated: The file wp-db.php is deprecated as of version 6.1.0! Use wp-includes/class-wpdb.php instead. exist

After updating wordpres, this error appears at the top of the page. I also cannot log into wordpres as administrator and restore the backup. I don't know what to do Deprecated: The file wp-db.php is deprecated as of version 6.1.0! Use wp-includes/class-wpdb.php instead. Warning: Cannot modify header...

P粉346326040 2023-12-18 19:53:32

Equivalent sized html elements to normalize title spacing

I have an html element that exists on some elements but not others. For those elements that don't exist, I need to have a blank html element of equal size. This ensures that the spacing doesn't stray. I tried adding the same element but placing hidden, hidden="hidden" and style="visib...

P粉722521204 2023-09-13 18:27:42

How to handle potentially "false" inputs in JSON? Discussion of alternatives

Let's say, I'm not sure if the selected authorities exist (but if they exist, I want them to be selected). If there are no selected authorities, I want jQuery to select the authorities regardless of whether they are selected (actually, this means retrieving the value of the hidden input). My idea of...

P粉161939752 2023-09-10 09:35:21

When using Firebase in React, should getAuth getStorage getFirestore etc. be called once and passed or can they be called in every component?

If I need the result of using constdb=getFirestore() or constauth=getAuth(app) etc. in multiple components I should: rewrite these lines in each component whenever I need constdb=getFirestore() or constauth =getAuth(app) etc. or just call them at the top level of the App component and pass them as p...

P粉788571316 2024-01-16 22:40:06

How to restore mysql to factory settings?

So I deleted all users in mysql.user and restarted mysql database. Now I can't seem to get into mysql again or how to reset it as if it was a fresh install. I tried uninstalling it using brewuninstallmariadb and then reinstalling it using brewinstallmariadb but that didn't fix the problem. The only ...

P粉436410586 2023-12-13 12:36:19

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21