MySql字段加1出错
很多天前就发现的问题,当时以为是自己机器问题,现在上传云服务器还是没能解决,望大神助我~
首先是我的个人博客文章在Mysql里有个Look字段,每次查看这个博客,这个字段便在原值上加1,但问题是我每次点击查看它总是原值加2,这真的令我费解,看源码
<code>public function viewBlog(){ $_sql='SELECT * FROM blog WHERE id='.$this->_id.' AND verify=1'; $_sqlView='UPDATE blog SET `look`=`look`+1 WHERE id='.$this->_id; parent::aud($_sqlView); return parent::getOne($_sql); } </code>
这是Model里的源码
<code>private function viewBlog(){ $this->_model->_id=Tool::checkInt(@$_GET['id']); $_oneBlog=$this->_model->viewBlog(); $this->_tpl->assign('oneBlog',$_oneBlog); </code>
这是控制器的源码片段,已确定viewBlog()函数只执行了一遍,更诡异的是如果我点击评论(评论和查看相比a标签只多了一个#anchor锚点定位到评论框)它的look值便会加3,然后再点击查看或评论它便正常加1了。。。。。。
求大神告知个人博客这是我的博客地址,并不是求访问量,真的求大神解答~~~
回复内容:
很多天前就发现的问题,当时以为是自己机器问题,现在上传云服务器还是没能解决,望大神助我~
首先是我的个人博客文章在Mysql里有个Look字段,每次查看这个博客,这个字段便在原值上加1,但问题是我每次点击查看它总是原值加2,这真的令我费解,看源码
<code>public function viewBlog(){ $_sql='SELECT * FROM blog WHERE id='.$this->_id.' AND verify=1'; $_sqlView='UPDATE blog SET `look`=`look`+1 WHERE id='.$this->_id; parent::aud($_sqlView); return parent::getOne($_sql); } </code>
这是Model里的源码
<code>private function viewBlog(){ $this->_model->_id=Tool::checkInt(@$_GET['id']); $_oneBlog=$this->_model->viewBlog(); $this->_tpl->assign('oneBlog',$_oneBlog); </code>
这是控制器的源码片段,已确定viewBlog()函数只执行了一遍,更诡异的是如果我点击评论(评论和查看相比a标签只多了一个#anchor锚点定位到评论框)它的look值便会加3,然后再点击查看或评论它便正常加1了。。。。。。
求大神告知个人博客这是我的博客地址,并不是求访问量,真的求大神解答~~~
你先不要直接存进数据库先,测试一下look
=look
+1是不是这里有问题,看看是不是真的访问了一次

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.
