Analysis of mysql, mysqli, PDO bitsCN.com
Analysis of mysql, mysqli, PDO
Which of the following is better performance for PDO, MYSQL, and MYSQLI? Here we will make a simple comparison.
Normal mysql connections will certainly be discarded
The PDO function library (PDOFunctions) in PHP ). PDO is a database access abstraction layer used to unify access interfaces of various databases. compared with mysql and mysqli function libraries, PDO makes cross-database use more friendly;
Performance Tuning Recommendations1. Optimize your query for query cachingMost MySQL servers have query caching turned on. This is one of the most effective ways to improve sex, and this is handled by the MySQL database engine. When many of the same
About PDO first of all we should understand what is pdo:php data object is the abstraction layer, we understand the database abstraction layer in PHP, the birth of the meaning is that effectively solve the data across different database
What is eloquent?Eloquent is an ORM, all known as an Object relational Mapping, translated as a "relational mapping" (if it is only treated as the database Abstraction Layer Array Library abstraction level, it is too underestimated). The so-called
Flask Overview and InstallationFlask IntroductionFlask is a lightweight WEB application framework written using Python. Its WSGI Toolbox uses Werkzeug, and the template engine uses JINJA2.Official website: http://flask.pocoo.org/Understanding Flask:
1. Do not use tools such as Phpdoc to properly annotate your code
2. Turn a blind eye to an excellent integrated development environment such as Zend Studio or eclipse PDT
3. No form of version control system has ever been used, such as Subclipse
4.
PHP is mature
As PHP is mature, it is time to quickly compile out-of-the-box scripting staff and understand the UML object-oriented developers to "reach an agreement.
Few programming languages can be popularized as quickly as PHP. The widely
The PDO of the PHP database abstraction layer-connections and connection management connections are established by creating a PDO base class instance. No matter which driver is used, the PDO class name is used. The constructor receives parameters
I wanted to write this article for a long time, but I never had time to finish it. I don't mean to tell you how to do it. I hope this article is just a reference to discuss with you how to build an effective and flexible network application. After 2-
1, do not write comments 2, do not use the IDE tool can improve productivity 3, do not use version control 4, do not write code according to the programming specification 5, do not use uniform Method 6, do not think before encoding and plan 7, do
PDO is more efficient than ADODB and MDB2. For now, implementing a "database Abstraction Layer" is a long way off, and using a "Database access abstraction Layer" like PDO is a good choice.
Pdo->begintransaction ()-Indicates the rollback start point
Chart Library
The following class library allows you to easily create complex diagrams and pictures. Of course, they require the support of the GD library.
Pchart -a library that can create a chart.
Libchart -This is also a simple statistical
1. Mambo-mambo, a foreign CMS system, features very powerful, support to add many components, modules; Rich templates official: http://www.mamboserver.com
2. Lingbo-limbo (Lite Mambo), as the name implies, evolved from Mambo. The aim is to simplify
This article will start with SQL Injection risks and compare the differences between preprocessing of addslashes, mysql_escape_string, mysql_real_escape_string, mysqli, and pdo. This article will start with SQL Injection risks and compare the
This article mainly introduces 40 common mistakes of PHP programmers. Basically, I have been shot in every article. how many mistakes have you made? 1. do not write comments
2. do not use IDE tools that can improve production efficiency
3. do
PHP implements multi-server sharing SESSION data PHPSESSION working principle main obstacles to multi-server sharing SESSION and solutions PHP achieves multi-server sharing SESSION data
I. problem origin
Websites with a slightly larger size usually
PHP is mature. As PHP is mature, it is time to quickly compile out-of-the-box scripting staff and understand the UML object-oriented developers to "reach an agreement. Few programming languages
As PHP is mature, it is time to quickly compile
More than 20 best experiences on MySQL Performance Optimization today, database operations are increasingly becoming the performance bottleneck of the entire application, which is particularly evident for Web applications. Concerning the database
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