Home Backend Development PHP Tutorial php的web应用,同一个session。 mysql 连接有关问题

php的web应用,同一个session。 mysql 连接有关问题

Jun 13, 2016 pm 01:33 PM
mysql php session

php的web应用,同一个session。 mysql 连接问题
定死的一个mysql进程么? 有什么地方可以设置的么?php版本有什么要求?

在多标签的浏览器中,打开同一网站多个耗时页面时,mysql 中 show processlist 同时只有一个进程在工作。



------解决方案--------------------
这问题是存在的,firefox与chrome都会这样、我一直没有解决。
一个页面请求中的话、再打开新窗口都是一直在转了,
用ie6试了一下就可以打开,说明是浏览器的问题。

最后我通常是把浏览器的进程都结束了再打开就正常了。
------解决方案--------------------
这不是愿不愿意动手的问题!你根本就没有把问题说清楚

你的标题中有 session ,后面又提到多个选项卡
所以猜测你的页面是启用了 session 的
同一个浏览器的各选项卡间是共享 cookie 的(这一点你可以自己测试)
于是两个选项卡中的页面就有了相同的 sessionid
session 临时文件是独占方式打开的,所以一个程序占有的该文件,另一个就只能等待了

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1669
14
PHP Tutorial
1273
29
C# Tutorial
1256
24
MySQL: The Database, phpMyAdmin: The Management Interface MySQL: The Database, phpMyAdmin: The Management Interface Apr 29, 2025 am 12:44 AM

MySQL and phpMyAdmin can be effectively managed through the following steps: 1. Create and delete database: Just click in phpMyAdmin to complete. 2. Manage tables: You can create tables, modify structures, and add indexes. 3. Data operation: Supports inserting, updating, deleting data and executing SQL queries. 4. Import and export data: Supports SQL, CSV, XML and other formats. 5. Optimization and monitoring: Use the OPTIMIZETABLE command to optimize tables and use query analyzers and monitoring tools to solve performance problems.

What is the significance of the session_start() function? What is the significance of the session_start() function? May 03, 2025 am 12:18 AM

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.

Steps to add and delete fields to MySQL tables Steps to add and delete fields to MySQL tables Apr 29, 2025 pm 04:15 PM

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

How to uninstall MySQL and clean residual files How to uninstall MySQL and clean residual files Apr 29, 2025 pm 04:03 PM

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

An efficient way to batch insert data in MySQL An efficient way to batch insert data in MySQL Apr 29, 2025 pm 04:18 PM

Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.

How to use MySQL functions for data processing and calculation How to use MySQL functions for data processing and calculation Apr 29, 2025 pm 04:21 PM

MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.

Composer: The Package Manager for PHP Developers Composer: The Package Manager for PHP Developers May 02, 2025 am 12:23 AM

Composer is a dependency management tool for PHP, and manages project dependencies through composer.json file. 1) parse composer.json to obtain dependency information; 2) parse dependencies to form a dependency tree; 3) download and install dependencies from Packagist to the vendor directory; 4) generate composer.lock file to lock the dependency version to ensure team consistency and project maintainability.

Detailed explanation of the installation steps of MySQL on macOS system Detailed explanation of the installation steps of MySQL on macOS system Apr 29, 2025 pm 03:36 PM

Installing MySQL on macOS can be achieved through the following steps: 1. Install Homebrew, using the command /bin/bash-c"$(curl-fsSLhttps://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)". 2. Update Homebrew and use brewupdate. 3. Install MySQL and use brewinstallmysql. 4. Start MySQL service and use brewservicesstartmysql. After installation, you can use mysql-u

See all articles