PHP

Through learning the PHP language, you should know that it is a function-based HTML scripting language. The huge function library supports the implementation of PHP functions. Next we will introduce the usage of PHP functions isset () and empty. The

This article mainly introduces the memcached example of the PHP memory cache function, and briefly introduces memcached, which is a typical application of php to operate memcached. if you need it, let's take a look, the following describes the

This article mainly introduces the simple interaction between PHP and the server file system. it is very good and has reference value. if you are interested, let's take a look. 1. setting commands for file upload in php. ini 2. file upload process

1. the maximum memory limit of php 2. whether the number of digits (32-bit or 64-bit) in the php version affects the maximum memory limit. 3. the maximum memory limit for a single script execution is 2 GB, and php7 is not limited; 1. what is the

Abstract: On the other hand, the application of this inventory has a prominent problem: you can only be limited by the ideas of some people, and a large number of work has been added to code governance. Therefore, you need to carefully consider

This article mainly introduces how to use the FFmpeg interface in php to obtain the video playback duration, bit rate, thumbnail, and creation time, which has some reference value. if you need it, you can understand it. FFmpeg is a video plug-in. we

This article provides a detailed analysis of the JVM memory limit of 2 GB in Linux, for more information, see the 32-bit JVM we usually use (64-bit JVM will lose 10-20% performance, which is generally not recommended ), the addressing space of

This article mainly introduces PHP code for obtaining the name of the currently executed php file. For more information, see the following article. it mainly introduces PHP code for obtaining the name of the currently executed php file. For more

As we all know, ffmpeg is a video stream software. we can install ffmpeg in linux. This article mainly introduces how to install ffmpeg extension in PHP5.3 under Centos6.5, for more information, see. As we all know, ffmpeg is a video stream software.

Since it is a database exercise, create a database first. let's come up with one: 1. go to phpmyadmin and create a database. since it is a database exercise, create a database first, let's come up with the following: 1. go to phpmyadmin and create

Sometimes we have a royalty formula for each product, and the formula used for this calculation exists in the table in the string format. when we use this formula, it is not like the one we wrote: $ a2 + 3*5; in this way, the result can be

When the server communicates with the terminal device over HTTP, it is often captured by the network, decompilation (AndroidAPK decompilation tool), and other technologies to obtain the HTTP communication interface address and parameters. To ensure

Form & lt; form & gt; consists of form elements. Common form elements include the following tags: input field tag & lt; input & gt;, selection field tag & lt; select & gt; and & lt; option & gt;, text field Mark & lt; textarea & gt;, etc.

Almost every website has the file upload function. the file upload function is essential to almost all websites. However, this function is highly risky for servers, we restrict the size and type of the uploaded file. we can obtain the suffix of the

In mysql, if we use the floating point type for result calculation, we will find that the calculation result is different from the actual result. why? This article introduces the cause analysis and solution of mysql floating point calculation error.

Background: currently, tinyint is widely used for enum. is enum useless? The PHP low-level programming team looks at this issue as follows. I hope to objectively understand the advantages and disadvantages of this enum field: Yan Ge's point of view:

Solve mysqlamp; quot; Accessdeniedforuser bitsCN.com Solve the problem of mysql "Access denied for user 'root' @ 'IP address '" In MYSQL, remote software is used to log on to the server, sometimes the following occurs: Access denied for user 'root'

MySQL full-text retrieval notes bitsCN.com MySQL full-text retrieval Notes 1. MySQL 4.x and later provide full-text retrieval support, but the table storage engine type must be MyISAM, The following is a TABLE creation SQL statement. Note that the

MySQL5.6.7-RC tpcc-mysql benchmark test result bitsCN.com MySQL 5.6.7 RC was released a few days ago, so I decided to use tpcc-mysql to test its performance, including performance and stability. I can't say that my testing process is flawless

Website construction tutorial (7): SQL Elementary tutorial tip: SQL is a standard computer language for accessing and processing databases. SQL is a standard computer language used to access and process databases. Use SQL to manage dataStructured