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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

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 - 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

After cross-class call, method cannot be found

Do static method overloading to achieve chained access to the database exercise demo5.php references the Query.php class and then accesses the method in Query. The page prompts me that the method 'table' is not found in the Database. The following is the source code. I hope it can help. The first er...

方人胥 2021-06-12 17:16:18 1  2  1202

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

Solve the problem of operation error when pythonanywhere connects to MySQL database

I have finished my django project and I want to test it on PythonAnywhere, everything was fine until the mysql database connection showed an error to which I have paid subscription. An operation error occurred on /home/ (1044, "Access to database 'almx98' for user 'almx98'@'%' is denied") ...

P粉459440991 2024-03-31 22:43:19 0  1  686

Mysql connection cannot be established because the target machine actively refuses the connection

I know a lot of people have asked this question, but most of these people have forgotten their passwords that are blocked by firewalls, and I haven't encountered this situation. I'm developing in php and need to connect to a remote database for my team to use together. Everything is fine on localhos...

P粉957723124 2023-08-22 19:04:28 0  2  860

I would like to ask if PHP can read the mssql record set directly and store it directly into an array? Thank you

It used to be asp, but now it is transferred to php. For example, $sql = "SELECT * FROM abcDB"; //Record 20 records. How to get a two-dimensional record set and store it in an array at one time. Reason: After the database operation is completed, I want to disconnect. The data is slowly cir...

stock2 2019-04-27 20:02:10 0  1  1079

How to write in PHP to log in to different pages with different usernames and passwords

As a novice, I originally imagined that when adding a user, I would select the value of value, enter the username and password when logging in, and at the same time determine whether the value of the selected value is 0 or 1. When entering different pages, the name of value saved in the database is ...

TimeLimit 2018-06-17 13:51:17 0  1  1432

I would like to ask: Why does PHP only calculate the addition of two pieces of data? How can you find the sum of all numbers?

This is the template of finecms. There is such a loop, which displays the transaction information posted by members. Each information has replies from other members. This reply contains the amount, and an operation is written in PHP (just for display, (not written to the database), but it only calcu...

劉暢 2020-08-31 18:35:16 0  1  1117

Teaching course preview for September 12, 2018: Detailed explanation of dom operations in Javascript

1. Teaching topic: DOM operation content in Javascript. (The full name of DOM is Document Object Model, which allows js scripts to control Web pages, windows and documents.) For more detailed explanations of JavaScript knowledge points, please pay attention to tonight's live class on time! Lecturer:...

藏色散人 2018-09-12 14:45:26 0  0  1440

Open source PHP novice entry-level framework WillPHP (similar to ThinkPHP)

WillPHP is a lightweight development and learning MVC framework, an entry-level framework for PHP newbies (similar to ThinkPHP). ###Lightweight and extremely fast size 211KB (uncompressed), 22 initial files loaded (15 with page cache enabled), memory overhead <100KB. ###Main functions: automatic ...

P粉605904125 2022-07-23 16:30:16 0  0  938

How to select multiple classes with the same name in JS

I use PHP to dynamically render these lists I get from the database, each list has the same class and since I can't change it, it renders dynamically. I select these classes via JavaScript and create an event on click to open and close them using the hidden class. Now I have a problem, this event wo...

P粉005134685 2024-03-26 17:46:43 0  2  576

Legacy MySQL setup warning: mysql_connect(): file or directory does not exist

Dear developers, I have solved the original problem, but if anyone has a docker image that can run this, I would be very grateful. I need help with a very old application. I'm setting up a virtual machine environment for an old application. If you plan to help, please read carefully. I have an old a...

P粉720716934 2024-01-16 19:08:53 0  1  657

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  586

Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use

明民 2017-10-10 17:04:14 0  2  1379

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

劉袁銘 2017-10-10 19:25:59 0  4  2935

mcrypt_get_key_size()

To use mcrypt_get_key_size() in php study, how to enable mcrypt_

劉袁銘 2017-10-10 19:47:34 0  1  1167

Detecting login status and preventing repeated login status in TP5 - My page is wrong

冥冥之中天注定 2017-10-10 22:49:15 0  0  1180