php process

1. Distinguish between read lock and write lock.If you use a write lock every time, it is not efficient to queue up multiple processes to read a file.2. Distinguish between blocking and non-blocking modes.In general, if a process is writing a file,

1. Read and Write locks are distinguished.If a write lock is used each time, multiple processes will be queued to read one file. This is definitely not efficient.2. distinguish between blocking and non-blocking modes.In general, if a process is

This article mainly introduces phpQuery, which makes it as convenient for php to process html code as jQuery. For more information, see Introduction How to easily parse html code in php is probably a problem for every phper. PhpQuery makes it as

Some people say that PHP is a single process. I understand that a single process can only process one file at a time. If a queue is required for concurrency, is PHP a single process of multiple processes? If it is a single process, why are the

A Boolean loop is a real time execution, and a false stopAttention:1. Cycle can save a lot of code, improve the nature of reuse2. The circulation, must have the exit condition.In a 3.While loop, a variable must be initialized before the while

Php flow control switch instance switch allows you to select multiple possible results of a scalar (expression. Syntax: switch (expr) { case result1: statement1 break; case result2: statement2 break; …… default:

Just a few days ago, I also wrote a process lock class, which is more advanced than the one mentioned in the above article. 1. read and write locks are distinguished. If a write lock is used each time, multiple processes will be queued to read one

eaccelerator = function_exists ("Eaccelerator_lock") ; if (! $this->eaccelerator) {//$this->path = $path. ( $this->_mycrc32 ($name)% $this->hashnum). TXT '; $this->path = $path. SHA1 ($name). TXT '; } $this->name = $name;

In order to better control php program operation at the same time, I sorted out a process lock class. we can use this process lock to implement program control. The program code is as follows :? Php + ---------------------... to better control the

Install php-soap in Linux by re-compiling php. First install php is better to retain the files installed at that time, such as my path export1softcdphp-5.1.6extsoapusrlocalphpbinphpize.configurewith-php-configusrlocalphp first install php after the

1. Add a new Process page: Select the process node: query ($suser); foreach ($auser as $v) { echo " {$v [2]} ";}? >strquery ($sname); echo "{$k}--{$name}-- ';}? > Please enter the process name: 2. Add a new process (and other) processing

if (with If.. ElseIf. else extended instance) conditional statement, which executes the corresponding statement according to the given condition, is a basic statement While loop statement that loops the specified statement according to the

This article mainly introduces the basic knowledge and examples of the signal related in the Process Communication Foundation of PHP, it is very good, the need of small partners can refer to the following Use signal communication. You can use

This article mainly introduces phpQuery, which makes it as convenient for php to process html code as jQuery. For more information, see Introduction How to easily parse html code in php is probably a problem for every phper. PhpQuery makes it as

Recently wrote a program that monitors online processes. The purpose is to be able to monitor the execution of the program in real time and restart it in a timely manner. Written in PHP, not difficult, but also to yourself, but quite a sense of

Ask php to handle the html source code! For example, the idea asks php to handle html source code! Online Example: http://www.bengou.com/100408/pm10040810/index.html Some of the html source code is: HTML code

Ask php to handle the html source code! For example: www.bengou.com100408pm10040810index.html, some of the html source code is: HTMLcode & lt; divclass & quot; subsrbelistcenter & quot; id & quot; mhlist & qu ask php to process the html source code!

First, Process Control1. Select structureA) Single branch structureif (condition) {statement executed when condition is true}3) {echo "true";}//Result: True?>b) Dual-branch structureif (condition) {The condition is true when the statement is

1. Ordered Structure 2. Branch Structure 2.1 if... else 2.2 if... elseif 2.3 switch 3. Loop Structure 3.1 while 3.2 do... while Similar to C/C ++ 3.3 ' (= 0; 3.4Foreach The foreach statement is used to traverse arrays. There are two syntax

Three process control structures of the program1. Ordered structure2. Select a structure3. Loop structure The result is as follows: The code is as follows:Copy code $ D = date ("D ");If ($ d = "Tue ")Echo "Today is Tuesday ";ElseEcho "today is