PHP

The maximum number of connections in mysql is 100 by default. this value is far from enough for database applications with many concurrent connections. when the number of connection requests exceeds the default number of connections, the database

Recently, we have been working on equipment Load Forecasting. considering load fluctuations, we need to develop an approximate growth rate to calculate the device load growth in the next few days. I think we have not learned well in our mathematics,

However, PHP is not an object-oriented language, but we must rely on it and always prepare this idea. Every time you use a class, you need to include the class file, which is very troublesome. it seems that "object" is not so easy. Although PHP is

Today, I read another version of the tutorial. I have to make a good summary. Otherwise, I am always not solid and confused. Today, I read another version of the tutorial. I have to make a good summary. Otherwise, I am always not solid and confused.

This afternoon, I got a Sina Weibo synchronization application, tested it many times, and finally succeeded. let's talk about my configuration process. Welcome to my Sina Weibo This afternoon, I got a Sina Weibo synchronization application, tested

Today, I started to get some interview questions to consolidate my PHP knowledge and help some people looking for work. Today, I started to get some interview questions to consolidate my PHP knowledge and help some people looking for work. There are

Today we are talking about a problem that everyone has encountered, about string truncation. It mainly describes how to intercept Chinese and English strings! Today we are talking about a problem that everyone has encountered, about string

Recently, many friends have asked me if I can hide my Trojan horse in HTML or images, in fact, inserting a sentence Trojan into the php file is very concealed. recently, many friends are asking me if I can hide my sentence Trojan in HTML or image,

Caching in ZendFramework is performed by the front-end, and through the backend adapter (File, Sqlite, Memcache ...) And a flexible IDs and Tags system (identifier and tag system) to store cache records. module (Zend_Cache_Core) 1. fast Zend_Cache

The results of many php functions are given in arrays. The most common is mysql_fetch_array () The results of many php functions are given in arrays. The most common is mysql_fetch_array (),Including the obtained string information to generate an

In the past, when we first wrote PHP, we had to perform background authentication by administrator. In the past, when we first wrote PHP, we had to perform background authentication by administrator. COOKIE is generally used, especially for PHP

Data table: user; field name: id, user_name, pwd, email, grade, create_time; id auto-increment, primary key. Create a UserModel Data table: user; field name: id, user_name, pwd, email, grade, create_time; id auto-increment, primary key.When creating

When setting up a collection program using the Thinkphp framework on the nginx server, ThinkPhp stops at the welcome page. after modification and debugging, it is found that, thinkPhp uses the path_info variable to build a collection program using

The Pjax plug-in of jQuery, Pjax, that is, pushState + Ajax, is an open-source implementation that implements no refreshing ajax loading and solves the problem of browser forward and backward. PushState + ajax = pjax JQuery's Pjax plug-in, Pjax,

Obtain the mobile phone number in the string and classify it by the mobile phone number operator (Mobile, Telecom, and Unicom. I tried to use regular expression matching and found some information. ObtainMobile phone numberAnd is classified by

First, let's talk about the phenomenon: when I log on to the 9 th Street background today, it's strange that I quit as soon as I log on. The background code has never been changed. I checked the cause and found the root cause. I will post it

When ajax is used, we can know that ajax can trigger an interface across domains, but this causes a problem that any domain can call. in this case, we need to consider using anti-Leech technology. When ajax is used, we can know that ajax can trigger

The next interview shows how to generate an XML file in the form of a program. If you have any questions, leave a message. Generate XML file download To facilitate data processing, we sometimes need to consider storing data in XML format. The next

This is a problem that has not been solved by the returnee who used the CI framework to call the stored procedure. after reading the technical documentation, I can extract it because the project has been in use for a long time. This is a problem

Today we are talking about the encoding garbled problem. when there are two types of encoding in a page, no matter what you choose, there will be garbled code. Solution Today we will talk about the encoding garbled problem. when there are two types