How to optimize tp6 query

When the tp6 model is associated with multiple data tables for query, the query will be very slow. How can I optimize it? Is there any optimization method? Help! ! ! ! !

以后会怎样 2023-11-17 08:50:36 0 0 84

How to understand controlled elements in react

How to understand controlled elements in react? Use state control? How to understand controlled elements in react? Use state control?

尊渡假赌尊渡假赌尊渡假赌 2023-11-16 14:51:10 0 1 106

PHPcurl, a dedicated network interface

I have a (webserver) server with two network interfaces. The first is a standard interface for public internet connections and the other is a virtual VPN network interface. Now I want to send POST data via curl on other web services inside the VPN network. How can I say that the php there must use t...

P粉521697419 2023-11-08 20:01:46 0 1 261

Is full count query really that slow on a large MySQL InnoDB table?

We have a large table with millions of entries. Full counting is very slow, see code below. Is this common for MySQLInnoDB tables? Isn't there a way to speed up this process? Even with query caching, it's still "slow". I'd also like to know why the count of the "communication" ta...

P粉291886842 2023-11-07 15:52:43 0 2 236

How to embed background video in HTML/CSS?

Hi everyone, I recently encountered a problem. I'm trying to set a video background to my site, but the centered text runs all the way to the bottom, I don't know why, yet the navigation bar is fine. I've done a lot of research but can't find a solution. For CSS, I made the following settings: *{mar...

P粉176203781 2023-11-06 13:59:13 0 1 240

Laravel 9: Expected response code "250/251/252" but received error message "550 5.7.1 Relaying denied" with code "550"

Trying to send an email using mailtrap... I successfully implemented it on localhost and it works fine, but after deploying to heroku I can't get it to work on the live server. What is the solution? This is the smtp setting MAIL_MAILER=smtpMAIL_HOST=smtp.mailtrap.ioMAIL_PORT=2525MAIL_USERNAME=31239f...

P粉752812853 2023-10-30 10:54:18 0 1 405

Do custom elements require closing tags?

The elements I've defined (which don't require content) seem to work just fine without the closing tag. I'm wondering if this is just a quirk of the browser. What was the verdict? Is it theoretically possible? What if the parser sees the element before it is defined?

P粉717595985 2023-10-29 22:40:33 0 1 307

Error while upgrading PHP 7.4 on MAC after installing Brew

I have a MacAir with Ventura OS. I just installed Brew and can no longer upgrade PHP. I get the following error: Error: php@7.4 has been disabled because it is a versioned formula! How can I solve it? New to MacOS and Brew. Thanks Fabio doesn't know what to do at this point.

P粉478445671 2023-10-29 22:04:52 0 1 279

The sensio/framework-extra-bundle package has been abandoned

When I wanted to upgrade symfony from 6.1 to 6.2 I saw this message: Packagesensio/framework-extra-bundleisabandoned,youshouldavoidusingit.UseSymfonyinstead. I want to know how to do this since I removed the package and my route No longer valid. what to do? Thanks

P粉680087550 2023-10-25 13:36:48 0 2 257

Execute PHP without leaving the page

I have a form - textarea (named su) and submit button. After the form is submitted I need to run a PHP script without refreshing/leaving the page "echo" or somehow printing the return on the screen I'm pretty sure this can be achieved with some kind of ajax request. But I don't know what t...

P粉561323975 2023-10-23 19:05:06 0 1 285

How to merge arrays and keep keys?

I have two arrays: $array1=array('a'=>1,'b'=>2,'c'=>3);$array2=array('d'=>4,'e'=> 5,'f'=>6,'a'=>'newvalue','123'=>456); I want to merge them and preserve the keys and order instead of re-indexing! ! How did it become like this? Array([a]=>newvalue[b]=>2[c]=>3[

P粉081360775 2023-10-17 11:01:01 0 2 250

How to write tab characters in files using PHP

How can I simply write out a file containing real tabs? tab represents a real tab, it is not a space. How to write tab or what character is the real tab? For example here: $chunk="a,b,c";file_put_contents("chunk.csv",$chunk);What character should I use to get tabs instead of comm...

P粉399585024 2023-10-16 15:49:49 0 2 215

Generate unique random numbers within a certain range

I need to generate random unique numbers within a certain range, how can I do this? I can generate random numbers via generator:$arr=[];$x=rand($min,$max);$len=count($arr);$flag=0;for($i=0;$i< $len;$i++){if($flag===1)gotogenerator;if($x===$arr[$i])$flag=1;}$arr[$index]=$x;$index++

P粉087951442 2023-10-15 20:51:55 0 2 233

MySQL InnoDB does not free disk space after deleting data rows from table

I have a MySQL table using the InnoDB storage engine; it contains approximately 2M rows of data. When I delete data rows from the table, it does not free the allocated disk space. After running the optimizetable command, the size of the ibdata1 file has not been reduced. Is there any way to reclaim ...

P粉148434742 2023-10-15 00:02:19 0 2 222

Combine multiple exception types in a catch block

I'd like a cleaner way to get the following functionality to catch AError and BError in one block: try{/*something*/}catch(AError,BError$e){handler1($e)}catch(Exception $e){handler2($e)} Is there any way to do this? Or do I have to capture them individually? AError and Berror have a shared base clas...

P粉547420474 2023-10-14 16:57:18 0 2 278

Warning: libpng warning: iCCP: Known incorrect sRGB profile

I try to load a PNG image using SDL but the program doesn't run and I get this error in the console libpng warning: iCCP: Known incorrect sRGB profile Why do I get this warning? What should I do to resolve this issue?

P粉002572690 2023-10-12 22:06:35 0 2 273

Enhance gradient backgrounds with CSS3 transitions

I'm trying to use css to make a transition on a thumbnail image so that the background fades in on hover. The conversion doesn't work, but if I just change it to an rgba() value, it works wonderful. Doesn't it support gradients? I've also tried using an image and it doesn't convert the image either....

P粉955063662 2023-10-12 18:05:11 0 2 213

How to connect to the database with node.js

How to connect nodejs to database, express connection? How to connect nodejs to database, express connection? How to connect nodejs to database, express connection?

尊渡假赌尊渡假赌尊渡假赌 2023-10-10 10:06:27 0 9 184

How to write a loop?

How to write a loop? I don’t know how. It’s so difficult. How to write a loop? I don’t know. It’s so difficult. How to write a loop? I don’t know. It’s so difficult. How to write a loop? I don’t know. It’s so difficult. How to write a loop? How to write a loop? I don’t know how. It’s so difficult. H...

大瓶可乐@php.cn 2023-10-10 09:41:42 0 0 142

Regarding the data display problem obtained by fastadmin association model

Table A associates with table B and obtains the data of table B. Now I want to output the multiple names obtained in table B as "1,2,3" as shown in the figure. Get multiple "patient_name" of table B through the fields of table A , how should I change the code so that the result o...

小包子 2023-10-07 03:11:05 1 3 251