Common methods for connecting to MYSQL database with PHP

After configuring a Xiaoniao cloud server and deploying a PHP environment, what are the common methods for connecting to a MYSQL database?

想无 2021-09-07 13:56:33 0  3  1097

Database operation to obtain a single result: use mysqli to connect to the database

I'm trying to use mySQLi for the first time. In the case of a loop, I've done this. The results of the loop show up, but when I try to show a single record it gets stuck. Here is the working loop code. <?php//Connect to the database $hostname="localhost";$database="mydbname&quo...

P粉111227898 2023-08-21 22:59:04 0  2  571

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  552

tp5.1 Why does it sometimes show that the database cannot be found when connecting to mysql in the php toolbox, but sometimes the connection is successful?

tp5.1 Why does it sometimes show that the database cannot be found when connecting to mysql in the php toolbox, and sometimes it can connect successfully. The error display is the page that often appears. When it succeeds, it can connect to the database successfully, and the data inside can be read....

对方正在输入。。。 2018-11-29 10:34:13 0  0  988

Please write out the OLE connection string (php) to connect to the database "student.mdb"

Please write out the OLE connection string (php) to connect to the database "student.mdb". Please help me. My child is going crazy reviewing. Please help. My child is going crazy reviewing. Please help. My child is going crazy reviewing. Please help. , the child is going crazy reviewing, p...

有为鱼 2019-01-08 14:19:58 0  0  991

I refresh the PHP page directly and can delete the numeric fields in the MYSQL database, but cannot delete the letter or URL fields?

I directly refresh the PHP page and can delete the numeric fields in the MYSQL database, but I cannot delete the letter or URL fields.

我就是我 2018-05-14 11:49:58 0  1  2190

Running PHP project shows blank

My main problem is that the php projects that used to be run using xampp cannot run now. They can display html, and some php pages that do not need to be connected to the database can also be displayed. As long as they need to be connected to the database, they cannot be run. I have no idea why. Ple...

千落 2021-01-20 12:50:46 0  1  1194

The oci_parse() method returns null parsing method

I want to create a class that connects to an ORACLE database using some OCI methods. But when I call the Parse() method it is null and my FetchArray() method returns nothing Database PHP class: classDatabase{/***@varstring*/privatestring$login;/***@varstring*/ privatestring$password;/***@varstring*/...

P粉043432210 2024-01-29 13:46:11 0  1  424

PHP database connection problem

Experts, please help me see if what I wrote is correct---------------------------------< ?php$adminunix = "localhost";$adminname = "root";$adminpass = "root";$admindb = "ckq";//Connect to the database $conn =new

杜紫藤 2019-05-16 10:19:48 0  2  1322

jsonp - The background php returns json. The local test Chinese display is normal, but the server Chinese becomes a question mark.

The back-end PHP gets the data from the MySQL database, and the output is in json format and transmitted to the front desk. The PHP files on the local and server are connected to the same database. During the local test, the json return data is normal in Chinese, but the json return data on the serv...

过去多啦不再A梦 2017-05-16 13:01:57 0  1  549

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  888

How to connect to mysql on SSH server with PHP?

Similar to Navicat for Mysql, I need to connect to the database on the SSH server to execute SQL. May I?

Ellen 2021-12-13 15:07:23 0  1  897

nginx - How to make the server proactively notify the socket client after receiving http data?

It's like this. I want to operate a smart light bulb. This is how I currently do it. I operate it on the web page, and then submit the data to the database through http. A client initiates a socket connection and connects to the server. The server is Fetch data from the database to the client in an ...

PHP中文网 2017-05-16 17:06:59 0  3  647

PHP connection failed: SQLSTATE connection refused

I'm trying to use PHP connection to connect to a MySQL database on phpmyadmin. Nothing special about the connection, just wanted to see if the connection was successful. I'm using MAMP to host the database and the connection I'm trying to use is this: &lt;?php$servername="127.0.0.1";$u...

P粉068510991 2023-08-23 18:49:26 0  2  605

Please help me, how do I connect PHP7.3.4 to the mdb database of Access2000?

There is no problem with php5.5.38 connecting to the mdb database of Access2000, but after PHP is upgraded to 7.3.4, it cannot connect. Can this version of php still connect to the mdb data? Code for php5.5.38 to connect correctly $dsn = "DRIVER=Microsoft Access Driver (*.mdb);dbq=".realpa...

@GB. 2019-10-24 09:35:33 0  0  1299

node.js - How to operate Mongodb in node project? Is my approach feasible?

This is the first time I came into contact with the node project. I used the node-mongodb-native module officially provided by mongodb to connect and operate mongodb. I connected the database in the entrance app.js, but I want to operate the database elsewhere. Here is what I do: {code...} I put the...

女神的闺蜜爱上我 2017-06-10 09:48:03 0  1  686

SMProxy, a MySQL database connection pool developed by Swoole based on the MySQL protocol.

SMProxySwoole MySQL Proxy is a MySQL database connection pool developed by Swoole based on the MySQL protocol. The principle is to store the database connection as an object in the memory. When the user needs to access the database, the connection will be established for the first time. Later, inste...

子山 2019-01-29 14:50:17 0  0  1360

python problem of retrieving URLs from mysql database

After fetching the link from the database, it prints out like this, {code...} The type of the field in the database is Varchar, this is the code {code...} I printed it directly as https://www.baidu.com, What should I do?

曾经蜡笔没有小新 2017-07-04 13:43:48 0  2  1042

mysql - How to make the sql of the java project compatible with the sql syntax of multiple databases?

How can SQL statements in Java projects be compatible with multiple databases? The project belongs to the product category and it is not confirmed which database the user uses. We use db2 during development, but if we encounter an oracle database, sql will fail. I don't know how to achieve compatibi...

PHPz 2017-05-18 10:45:51 0  2  960

The Linux system does not support PHP operations to access the database. Can you please advise on other solutions?

The database of Windows computer software is accessible. If you want to share data, upload the database mdb file to the web server through php, and then php reads the mdb database into html. When the web server is windows, the test is normal. The Linux system does not support PHP operations to acces...

forever 2017-10-31 14:35:35 0  1  1032