opcode

PHP is an analytic high-level language, in fact, from the point of view of the Zend kernel PHP is a normal C program, it has a main function, we write the PHP code is the input of this program, and then through the kernel processing output, the

Analyze the ZendVM engine from the PHP syntax sugar 1. Let's talk about the syntax sugar of PHP5.3 +. we usually write it like this: Syntax sugar can be written as follows: The execution result $ B = 1. the subsequent statement is more concise,

I have recently been involved in Python bytecode related work and would like to share some of this experience with you. To be more precise, I am participating in the work of the 2.6 to 2.7 version of the CPython interpreter byte code. Python is a

It took about a week to write a PHP extension module Opdumer and encapsulate it into a Web service (Click here to access it ). The main content of this module is to output the opcode corresponding to the PHP code. In fact, there have been some

Title: PHP OverviewAuthor: ZhengDate: 2014-05-16------------------| Thank you Marco Education |---Cumago's career is plain sailing.Mime,http,htmlMIME:N enables HTTP to transmit non-textual information, such as mp3http: can only parse HTML documents,

API hooks are not a new technology, but I am ashamed that I have mastered them recently and have come up with some stupid ways to achieve my goal. There may be many errors or vulnerabilities in this article, and you may want to correct them in time.

1. preface language is an expression of communication and communication. Each language has its own symbols, expressions, and rules. For programming languages, it also consists of specific symbols, specific expressions and rules. The role of language

Introduction to PHP Cache acceleration 1. Operation code Introduction and caching principle     When a client requests a PHP program, the server's PHP engine parses the PHP program and compiles it into a specific opcode file (Operate code, OpCode)

Php is first compiled into opcode by the Zend engine. How is opcode executed by zend_execute? Is it finally compiled as a machine code? What is the specific process? Php is first compiled into opcode by the Zend engine. How is opcode executed by

An RDB is another form of persistence for Redis, which is equivalent to a timed snapshot and also to the snapshot +redo log in master-slave synchronization. Redis does not require a lock when it makes an RDB, which is done by using the parent-child

What's the difference between APC and ZendopcacheHttp://www.laruence.com/2013/03/18/2846.htmlClick ( here ) to collapse or open In the past, many people would have chosen to use APC, In addition to the opcode cache, APC provides a set of

A PHP Cache acceleration Introduction and Environment Introduction 1 PHP Cache acceleration introduction 1 opcodeThe opcode is a php-compiled intermediate file, which is a byte code.Nginx concurrency max, php concurrency second hundreds of, MySQL

Today, I found a vulnerability like this. I searched the internet for a long time and did not find any exploitation methods. So I found the vulnerability and finally found it ..  MMHTTPDB. php:    If (extension_loaded ("mbstring ")) { $

Problem: The cmpxchg8b command compares an eight-byte value of edx and EAX with eight-byte memory (destination operand ). Only valid target operands are used for this command as memory operands. If the target operand is a register processor, an

Research on the memory cost of huge data objects in PHP 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

optimizer+ is the first and fastest opcode caching tool for Zend developed closed-source, but free-to-use PHP optimization acceleration components. Now, Zend technology company will optimizer+ under PHP License open source becomes Zend Opcache.

Phpsocket data encoding bytes. php byte encoding class /*** Byte array and string conversion class * @ author * created on 2011-7-15 */class bytes {/*** convert a string to a byte array * @ param $ str to be converted * @ param $ bytes target

In the article "HDFs Source code Analysis Editlog Get the edit log input stream," we learned more about how to get the edit log input stream editloginputstream. After we get the edit log input stream, is it time to get the data from the input stream

Almost every PHP programmer has published code that may have been synced via FTP or rsync , or it may have been updated with svn or git . An active project may have to be published several times a day, but the reality is that few people notice the

Optimizer+ is the first and fastest opcode caching tool for Zend developed closed-source, but free-to-use PHP optimization acceleration components. Now, Zend technology company will optimizer+ under PHP License open source becomes Zend Opcache. The