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The generator is PHP 5.5. Just introduced the function, perhaps people think that the generator role is not very obvious. However, generator functionality is really useful. This article is mainly to share with you the PHP generator detailed, hope to

Maybe you will ask, since ob_flush () sends the buffered data, why do we still need to use flush ()??? Can't I use the following code directly ?? Buffer output For ($ I = 10; $ I> 0; $ I --) { Echo $ I; Flush (); Sleep (1 ); } ?> According to the

Differences between concurrent synchronization and asynchronous multithreading: asynchronous Multithreading 1. Concurrency: in the operating system, several programs in a period of time are between started and running, and these programs are all

This article reproduced from: http://blog.csdn.net/ljianhui/article/details/10875883 the previous article, the book connected to one back, in the previous article: Linux multithreading-Using semaphore synchronization thread, We left a question of

{Code ...} $ Host = 'www .abc.com '; $ port = 80; $ query = "admin/mi. php? Key = value "; $ fp = @ fsockopen ($ host, $ port, $ errno, $ errstr, 30); if ($ fp) {$ out =" GET /". $ query. "HTTP/1.1 \ r \ n"; $ out. = "Host :". $ host. "\ r \ n"; $

Category: PHP Time: December 29, 2014 In some loops execution of the statement, the browser does not have the expected output, exactly what is the problem? This article mainly explains the PHP buffer. For PHP, every operation like the echo output

Why you need to use locks, of course, familiar with multi-threaded you, nature will not feel strange.Did you use the lock mechanism well in the code? Do you know several ways to implement locks?main.m 1 int main (int argc, const char * argv[]) {2

Article turned from: http://blog.csdn.net/z69183787/article/details/52910299The difference between a thread and a processLet's talk about threading and process concepts:(1) A process is an application that runs in memory, such as a Windows system in

First put the code up, there is time to organize it. Because QT is used in work, it is realized by qt .... Just work, and busy!Three methods, reader first, writer priority and fair competition.Readers first#include

1. Concurrency (concurrency): In the operating system , refers to a period of time a few programs are in the start run until the run is complete, And these programs are all running on the same processor . Two of these concurrency relationships are

1, 1 Main, contains 2 while,Don't be fooled by sleep in two while, where only main () is running, and the program executes in a top-down order.When I encounter sleep in a 1th while loop, this thread pauses execution and gives it to other threads,

The first two years have been a socket based flash chat code, but not all cases will choose (or have the conditions) to use the socket of the server. Real-time communication based on HTTP can be used in programs that are not too high on the demand

1. Concurrency: InOperating System processor run. Two of these concurrency relationships are synchronous and mutually exclusive 2. Mutex: The use of critical resources between processes is called mutual exclusion. 3. Sync: 4. Parallel: In a single

1. Concurrency: InOperating System processor run. Two of these concurrency relationships are synchronous and mutually exclusive 2. Mutex: The use of critical resources between processes is called mutual exclusion. 3. Sync: There are concurrent

  For ($ I = 10; $ I> 0; $ I --) {Echo $ I; Flush (); Sleep (1 );} ?>   According to the php Manual This function sends all the output of the program so far to the user's browser. The above code should output $ I every second. But not necessarily in

Java multi-thread Series 7-Stop thread, java multi-thread 7-Thread This article mainly summarizes how to stop a thread in java. There are three methods in java to terminate a running thread: 1. Use Exit flag 2. Use the stop method to forcibly

Powerful performance optimization tools you may ignore in PHP: generators and powerful performance optimization tools Preface If you are a Python or other language partner, you should be familiar with generators. However, many PHP developers may not

PHP-CLIWeb server Pthreads extension requiredPhp command line modeWriting is urgent and there is no time to optimize it. I will take time to optimize it.From source address: http://www.haowei.me/archives/1009.html Ini_

This article introduces to you about the performance of PHP in the optimization of the weapon: PHP generator of the detailed, there is a certain reference value, the need for friends can refer to, I hope you have some help. If you are a small

This article mainly introduces the PHP multi-process implementation of the task description, has a certain reference value, now share to everyone, the need for friends can refer to Demand Executes concurrently on a specified number of tasks and