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PHP operation method

<?php$x = 5;$y = 6$water = $y-- + $x--;echo $water;The result is 13. Don’t understand? Find the algorithm for operation = 13 $paper = ++$x + $x++;$water = $y-- + $x--;echo $water + $paper;?>

愛心傳遞 2019-07-22 15:08:13 0  1  1406

How is this voting option adding operation named .php?

How is this voting option adding operation named .php?

盛情不舊゛ 2019-05-02 18:32:09 0  1  1497

Why is the PHP configuration of predis operation redis cluster not recorded?

Why is the PHP configuration of predis operation redis cluster not recorded? 21-1 Is there a section in your hand at the end?

@smash 2019-06-29 09:38:32 0  0  1137

Solution to PHP FTP connection problem in containerized environment

I'm trying to containerize my PHP script. But for some reason it cannot connect to my FTP server when running in a container. I run the script on my local machine without any problems. Dockerfile: FROMphp:8.1-cliEXPOSE8080COPY./var/www/html/WORKDIR/var/www/htmlENTRYPOINTphp-fserve.phpPHP script: $co...

P粉302484366 2023-08-28 23:03:17 0  1  874

PHP automatically performs the login operation after discovering that the login has expired, and then continues the previous step.

Conditions: There is a third-party website, and every step of the operation needs to be logged in. Now I have built a simple front-end page and used PHP to make a springboard in the middle. Process: Every request on the page I built is transmitted to the PHP springboard through ajax, and then the PH...

暖暖橙 2022-06-13 15:06:16 0  1  1385

About php dbf operation

Since I need to export it to a dbf file recently, I checked the information and learned that php needs to use the php_dbase.dll extension library. But the current 7.0-7.4 does not have this extension library, please give me some advice.

白云蒼狗 2020-06-07 19:43:32 0  0  983

PHP FTP recursive directory listing

I'm trying to create a recursive function to get all directories and subdirectories from an ftp server in an array. I tried a lot of features I found online. The one that works best for me is this: publicfunctiongetAllSubDirFiles(){$dir=array(".");$a=count($dir);$i=0;$depth=20;$b=0;while((...

P粉621033928 2023-08-25 00:36:20 0  2  880

PHP operates mongodb to query two tables

The official commands can be queried, but who knows the actual PHP operation?

Sinker 2018-07-31 15:14:20 0  1  1255

When inserting data encapsulated by the PHP class, the insertion is always unsuccessful and false is returned;

<?php //Database operation class class Model{ Private $host; //Database address Private $user; //Database username Private $pwd; /

A _ Ｑ _ｉ_ 2021-10-13 10:21:27 0  6  1132

php - Operation problems after the registration verification email expires

Regarding the issue of registration verification email, my idea is as follows: Add the status field to the database to record the email verification status. The default is inactive. Send a verification email address to the user's email. The user can activate the email only after clicking it. If the ...

大家講道理 2017-06-30 09:52:35 0  3  1111

PHP toolbox 360 reports danger

This is when I upload the file to FTP. . Every file is reported as dangerous. When I first installed the PHP toolbox, it also reported a Trojan horse.

武林萌主 2018-07-31 17:59:23 0  2  1512

How to display continuous values ??in groups? Please give me guidance and help from teachers.

It's not a database operation, it's a php operation. For example: $a="1,2,3,4,5,6,7,8,9,10,11"$b="8,9,10,11,12,13,17,18,19, 20"$c="10,11,12,13,14,15,16,18,20,21,22,23,24"Required results$a="1-11"$b="8-13 ,17-20"$

JD26 2020-04-22 08:53:13 0  1  828

php - mysql update operation is slow, how to solve it

The database has an items table. Now we need to update the userid field in it. The statement is UPDATE items SET userid = xxx WHERE userid = 0 limit 1; We have started transactions to optimize the time, but it still feels too slow. It costs 3 to update 30,000 items. minute. Try to create a temp tabl...

僅有的幸福 2017-05-16 13:07:09 0  2  651

php - Database write operation delayed for several minutes before inserting data

Framework code $db = new db(.....); // Add monitoring, when the database is executed, it will automatically log $db-&gt;attach(function ($sql,$bind){$di-&gt;dblog ('Execute sql:'.$sql.$bind);}) // Insert a piece of data $db-&gt;execute("insert into user valu...

phpcn_u1582 2017-05-16 13:02:48 0  1  507

Please tell me a basic practical question.

The PHP operation database is completely fine when tested locally, but when uploaded to the Alibaba Cloud virtual host, an error occurs. Ask for solutions.

笑該動人 2018-07-31 16:46:32 0  1  995

php - How to ensure data security when one operation requests multiple services?

An order operation to purchase goods. To simultaneously reduce user points, insert an order. In the same library, pessimistic locking can be added to the points table to prevent concurrently generated data from being read multiple times. Now that HTTP is used to request points service and order serv...

我想大聲告訴你 2017-05-25 15:08:18 0  3  957

java - How to realize unified operation function in PHP multi-management backend?

The diversification of needs has led to several backends A B C D... The derived backends are deployed on multiple different servers S1 S2 S3... Multiple management backends have some of the same functions: user addition, deletion, modification and query, article management, equipment management Oper...

PHP中文網(wǎng) 2017-05-16 13:02:55 0  3  571

PHP-FPM smooth restart causes nginx error, what is the problem?

For a smooth restart of php-fpm, the kill -USR2 operation should theoretically be lossless for Nginx requests, but there is still an error_log {code...} during the restart.

迷茫 2017-05-16 17:17:02 0  1  734

Please tell me about PHP encryption reverse operation and how to modify it.

Currently: The current encryption result is random 0-9 items that are not encrypted and the rest are all encrypted. The desired result is: 0-9 items are randomly encrypted and the rest are not encrypted. $fileNameArr = scandir($dir2);foreach ($fileNameArr as $fileName) { if ($fileName != '.' &&a...

P粉268709102 2022-08-13 23:18:14 0  0  869

php - What impact will the ampersand reference pass have on the operation results?

$a = 1;$b = &$a; //Pass address. Commenting out this line returns 5. If it is not commented out (PHP version <7), it returns 6. $c = (++$a) + (++$a); does echo $c; have anything to do with the version? Also, the result is 6, which is really puzzling to me.

PHP中文網(wǎng) 2017-06-21 10:10:41 0  3  830