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: <?php$servername="127.0.0.1";$u...

P粉068510991 2023-08-23 18:49:26 0  2  664

PHP connection DRDS preprocessing information_schema statement returns false

PHP connects to Alibaba Cloud DRDS and preprocesses the information_schema statement. Returns false. Please support me.

***莎**** 2020-03-15 20:21:36 0  0  934

php - Multiple mysql connections to process different databases?

How to implement multiple mysql connections to process different databases? Won't they interfere with each other? !

高洛峰 2017-06-17 09:15:19 0  1  821

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  1400

spring - MongoDB connection timeout

After the Mongodb connection times out, the first database query will fail when you reconnect. It will be normal after reconnecting. This happens every time after timeout.

世界只因有你 2017-05-02 09:23:18 0  1  598

linux - Is there any relationship between the number of php connections and the number of mysql connections?

php apache mysql How do they establish connections between them? Does the number of connections affect each other?

高洛峰 2017-05-16 13:02:59 0  2  580

When calling Spring Boot REST API multiple times using the same JDBC connection

I have a REST web service written in Java/SpringBoot, running on Tomcat9. I need to create a MySQL temporary table in one web service call and access it in another service call. Since the temporary table is connection scoped, I need to use the same connection I used when creating the table in the fi...

P粉769045426 2023-08-27 09:40:00 0  1  619

php - Create a mysql connection in onWorkerStart in Swoole, how to keep the long connection continuous?

{Code...} After a while, the mysql connection will be closed. How can I never close it?

滿天的星座 2017-05-19 10:08:00 0  1  705

The target machine actively refuses the connection, resulting in the inability to establish a connection.

Sometimes when I perform HttpWebRequest to a web service, the following error occurs. I've also copied my code below. System.Net.WebException: Unable to connect to the remote server --->System.Net.Sockets.SocketException: The connection could not be established because the target computer activel...

P粉268654873 2023-08-20 12:40:57 0  1  580

nginx - How to calculate the server's maximum connection handling capacity (TCP)?

Recently I encountered such a problem: proxy server (can be LVS haproxy nginx), here we take Ningx as an example. When performing prxoy cluster proxy, how to judge the connection processing capability of a single server? The proxy server has no load bandwidth and cpu. With any pressure, the only thi...

某草草 2017-05-16 17:28:43 0  1  643

Telnet cannot connect

Please tell me why Telnet cannot connect to the tcp server? (The tcp server has been started) Report: telnet: could not resolve localhost:18001/telnet: Temporary failure in name resolution

丿Bad boy ·丨凯旋 2019-03-08 14:38:42 0  3  2660

Confluence MySQL connector connection not established

I'm trying to connect MySQLDB (installed in my laptop) from ConfluenceCloudRemote access using the MySQLSource connector. I can't establish a connection with MySQLConnector. Error: Unable to verify configuration. If configured, this means that the configuration is invalid and the connector continues...

P粉057869348 2023-09-09 13:22:30 0  1  769

PHP connection to MySQL failed

I downloaded xampp and then used PHP to connect to the database. Finally, when I accessed this browser, I couldn’t get it out and reported an error.

撒 野 2021-08-03 22:46:15 0  3  1110

Problem with tp6 connecting to sqlserver database

tp6 connects to sqlserver and reports [ODBC Dirver 17 for SQL Server] Protocol error in TDS stream

想无 2021-10-18 16:30:14 0  5  1151

Database pdo connection problem

<?php try{ $pdo = new PDO("mysql:127.0.0.1:3306;dbname='blogs';charset=utf8mb4",'root',''); echo "pdo connection successful".""; }catch(Exc

移动用户-1547390 2020-11-15 18:12:58 0  4  1052

Comment management

Please tell me how to manage comments as an administrator.

清灵 2020-04-24 18:27:41 0  3  1575

XAMPP/SQLSRV: Unable to find Sqlsrv in PHPINFO(); - error from connection

I'm trying to connect to my SQLServer database hosted on a LinuxVM. I'm running xampp on my development windows machine, and the connection is from a php site I'm building. I think I need to use sqlsrv to connect. I downloaded dllsql-server-ver from https://learn.microsoft.com/en-us/sql/connect/php/...

P粉201448898 2023-11-09 22:34:33 0  1  772

PHP and MySQL connection cannot use mysqli extension problem

$link=@mysqli_connect('localhost','root','root')|| die('Database connection error'); //This step can realize the connection $sql='set names utf8';$result=mysqli_query( $link,$sql);var_dump($result);//This

Super木 2019-03-30 15:12:34 0  4  1508