opcode

Introduction to APC The alternative PHP cache (APC) is a free and open opcode Cache for PHP. Its goal are to provide a free, open, and robust frameworks for caching and optimizing PHP intermediate code. APC Official website:

The introduction of VLD (Vulcan logic dumper) is as follows: The Vulcan logic dumper hooks into the Zend engine and dumps all the Opcodes (execution units) of a script. It can be used to see what is going on the Zend engine.   In the previous

First download the latest version of the VLD extension: Copy CodeThe code is as follows: ~/public_html/php-5.3.13/ext> wget http://pecl.php.net/get/vld-0.11.2.tgz ~/public_html/php-5.3.13/ext> Tar zxvf vld-0.11.2.tgz ~/public_html/php-5.3.13/ext>

PHP is an interpreted language. such as Java, Python, Ruby, Javascript, and other interpreted languages, the code we write will not be compiled into machine code to run, but will be compiled by the intermediate code running on the virtual machine

Implementation of catalogue in the PHPOpcode kernel 1. Opcode Introduction 2. Opcode3. opcode translation execution in PHP (instant interpretation execution)1. Opcode introduction Opcode is a part of a computer instruction. it is used to specify

What is the best way to analyze the performance of PHP code, or the code that implements the same functionality? Or would you like to know that the underlying implementation can use VLD to view opcodeDownload and install VLD# wget

OpCode to see the problem of PHP code performance Recently seen in the "? some php Coding Tips mention one thing: avoid doing arithmetic in the for-judging condition. ? So the rise with VLD looked at: for ($i =0; $i<><> For ($i =0, $j =strlen (

The above section describes the lua_dofile execution script file or the compiled script binary file.In this section, I will see how Lua distinguishes these two types of files and what happened in the program before the virtual machine starts to

First download the latest version of VLD extensions: Copy Code code as follows: ~/public_html/php-5.3.13/ext> wget http://pecl.php.net/get/vld-0.11.2.tgz ~/public_html/php-5.3.13/ext> Tar zxvf vld-0.11.2.tgz ~/public_html/php-5.3.

An in-depth analysis of the entire UPDATE process from birth to death is a question that a brother of Oracle once asked me. Some people later asked me this question: use ORACLE Internal principles to describe the following processes: 1. sqlplus

An in-depth analysis of the entire UPDATE process from birth to death is a question that a brother of Oracle once asked me. Some people later asked me this question: use the Internal principles of ORACLE to describe the following processes: 1.

# # 1. Let's start with a php5.3+ grammar sugar, which we usually write about: $a = 0; $b = $a? $a: 1; Syntax sugar can be written like this: $a = 0; $b = $a?: 1; Execution results $b = 1, the latter is more concise, but usually not too much

Php-zend Engine Anatomy of Hello World (ii) Objective This time, I'm going around Hello world to expand the execution of the Zend virtual machine. The PHP version of Hello World: ??? Echo ' Hello world '; ?> The lexical analysis phase of

1. Let's start with a php5.3+ grammar sugar, which we usually write about: Syntax sugar can be written like this: Execution results $b = 1, the latter is more concise, but usually not too much syntax sugar, especially easy to understand confusion,

PrefaceThis time around Hello World, I started the process of Zend virtual machine execution. Hello World's PHP Version: the lexical analysis phase of the previous article to analyze the script above to parse out a token sequence: We get a token

HelloWorld (II) Preface to the analysis of the PHP-Zend Engine this time, I started the execution process of the Zend virtual machine around HelloWorld. PHP version of HelloWorld: & lt ;? Php ??? Echo 'helloworld ';? & Gt; in the lexical analysis

First of all, please do not misunderstand, not I want to publish what the research results on this issue, but I would like to ask you to help me to analyze this problem together:) Describe the simplified issue background: In a PHP-implemented Web

Brief introduction Major web properties, such as Wikipedia, Facebook, and Yahoo!, use the LAMP architecture to service millions of of requests a day, while Web application software such as Wordpress, Joomla, Drupal, and SugarCRM uses its

Brief introduction Major web properties, such as Wikipedia, Facebook, and Yahoo!, use the LAMP architecture to service millions of of requests a day, while Web application software such as Wordpress, Joomla, Drupal, and SugarCRM uses its

Netty In Action Chinese version, nettyaction Http://blog.csdn.net/abc_key/article/details/38388031 This chapter describes how Netty easily implements custom codecs. Due to the flexibility of the Netty architecture, these codecs are easy to reuse and