foreach is a very common control statement used in PHP as an array loop.Because of its convenience and ease of use, nature is also hidden in the back end of a very complex concrete implementation (transparent to the user)Today, we'll come together
When doing PHP development, max_input_time and max_execution_time are often set up to control the timeout of the script. But never thought about the principles behind it.
Take advantage of the two days of free time to study the problem.
Timeout
This article describes how to deeply parse the foreach statement in PHP to control the array loop, for more information, see foreach. it is a commonly used control statement in PHP for array loop.
Because of its convenience and ease of use, it
"copyright notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet, the article only for learning Exchange, do not use for commercial purposes"at the very bottom of the computer operation, all computer
Introduction to 1.PHP Cache accelerator(1) Introduction of operation code and principle of acceleratorWhen a client requests a PHP program, the server's PHP engine parses the PHP program and compiles it into a specific opcode (Operate code,
These days the company's Python3 need to encrypt, the article on the Internet either provide ideas do not provide code, or encryption after you can not use it. There's no way I can write it myself.The whole idea of the article1, modify the python
A brief analysis of Qtum account Abstraction Layer (AAL) implementation
Qtum is designed with the Bitcoin Utxo as the base account model and implements the smart contract that supports EVM specification, which is done through the account abstraction
DTrace Patch for Python 2.7.x and 3.xÚltima actualización:21 de septiembre de 2015Https://www.jcea.es/artic/python_dtrace.htmYou can follow this work in the Python BugTracker on issue 13405 (original work on issue 4111).How to get the patchYou can
Brief introductionOptimizer+ 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
The principle is actually very simple. It is to use apc_bin_dumpfile to generate opcode files for many PHP file codes. When used, load the opcode file apc_bin_loadfile. The original code file is cleared. Generate a single opcode file. Note that the
"Editor's note" before, read a lot about PHP performance analysis of the article, but the writing is a rule, and these rules do not have context, there is no clear experiment to reflect the advantages of these rules, while the discussion also
The author collects these techniques from a wide range of sources, and the completeness is not guaranteed. These optimization techniques have not been tested due to the large number. Please crossing to test yourself before use, after all, whether
Php accelerator (XCache), php implements LAMP in the form of modules
PHP introduction
PHP is a general-purpose server-side scripting language. it is mainly used for web development to implement dynamic web pages. it is also one of the earliest
In the development of PHP, often set max_input_time, Max_execution_time, to control the script time-out. But I never thought about the principle behind it.
Take advantage of the two days to study the problem.
Timeout configuration
How the INI
PHP Script Runtime time-out mechanism detailed, PHP script mechanism
In the development of PHP, often set max_input_time, Max_execution_time, to control the script time-out. But I never thought about the principle behind it.
Take advantage of the
PHP optimization detailed, PHP optimization
The author collects these techniques from a wide range of sources, and the completeness is not guaranteed. These optimization techniques have not been tested due to the large number. Please crossing to
Document directory
Il code structure
Ilinstruction
Methodbodyreader
Il code in the parsing method body
This article is translated by loyee. e is poor, and some words are incorrectly translated. please correct me more. The translation is hard.
This article describes the WebSocket implementation principle and usage of go. Share to everyone for your reference, specific as follows:
WebSocket is divided into handshake and data transfer phase, that is, the HTTP handshake + Duplex TCP
WebSocket is a network technology for Full-duplex communication between browsers and servers that HTML5 has started to provide. In the WebSocket API, the browser and the server only need to do a handshake (handshaking) of the action, then the
The Java Virtual Machine directive consists of a byte length, an opcode (Opcode) that represents a particular meaning, and the following 0 to many operands representing this action parameter. Many of the instructions in the virtual machine do not
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