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A class that checks the program running time jumps StartTime = 0; $ this-> endTime = 0;}/*** set the program start time */public function setStartTime () {$ this-> startTime = microtime (true);}/*** set the end time of the program */public function

Php sample code for obtaining the webpage request status. When the webpage returns status code, we usually check whether the website status code is 200 or whether the error page is 404 code, in most cases, we can check whether the webpage status

PHP's recursive efficiency is generally considered inefficient. About a year ago, I wrote a blog post to compare the three methods of traversing the tree, and found that the recursive algorithm has the lowest efficiency. In addition, it is 3 times

An example of how PHP programming improves program running efficiency. From this point, we can see that the second part of the code will constantly judge the number of keys in the array based on the number of keys, so the number of the first part of

The definition of APC constant is compared with define of PHP. Recently, when I was working on the preliminary code architecture of the cloud platform, I encountered a constant definition speed comparison problem, so I would like to make a

PHP multithreading. PHP5.3 and later versions use the pthreadsPHP extension to enable PHP to truly support multithreading. Multithreading can greatly shorten program execution time when processing repetitive cyclic tasks. I used the pthreads PHP

/** ---CREATE COOKIE OBJECT--- $c = new Cookie (); ---create/update COOKIE--- $c->setname (' MyCookie ')//REQUIRED ->setvalue ($value, True)//required-1st param = Data string/array, 2nd param = Encrypt (true=yes) -

This is a creation in Article, where the information may have evolved or changed. This is by far the first to let me feel scared attack way, involving a wide range of difficult to defend, the attack effect is immediate. A large number of Web sites

In fact, the reason why quick sorting is called fast is that bubble sorting only exchanges the positions of two adjacent values for each comparison, so that each value must be moved to the corresponding position in its final sorting result, the

PHPprint class function usage summary. Copy the code as follows :? Php ************* bygarcon1986 *********** difference between print and echo: 1. echo can input multiple strings, but print cannot. Printhello. world; The code is as follows: /***

This article mainly introduces the internal multithreading of PHP multithreading. The example analyzes the usage skills of php multithreading and has some reference value, for more information about how to use PHP multithreading, see the example in

This article mainly introduces the php implementation method of memcache consistent hash. The example analyzes the implementation principle and related skills of memcache's hash consistency, for more information about how to implement memcache

PHP recursive efficiency analysis. In addition, it is 3 times less efficient. Therefore, you must be careful with recursion in PHP. Recently I wrote a fast sorting algorithm, and found that the recursive efficiency in PHP cannot be a

PHP multi-process (4): The above series of internal multi-process tutorials: PHP multi-process programming (1) PHP multi-process programming (2) pipeline communication PHP multi-process programming (3) multi-process web page capture

PHP multi-thread internal multi-thread instance analysis, php multi-thread instance analysis. PHP multi-threaded internal multi-threaded instance analysis, php multi-threaded instance Analysis This article analyzes the use of PHP multi-threaded

The class is defined as follows: CopyCode The Code is as follows: class test { Public static function (){} Public Function B (){} } $ OBJ = new test; Compare the following situationsTest: ();$ Obj-> ();$ Obj-> B ();Test code:Copy codeThe Code is

In PHP to record the execution time of the code in the page we only use the Microtime function to generate the time, and then subtract the start and end time at the end to resolve. Core code The code is as follows $t 1

Copy the Code code as follows: $t 1 = microtime (true); // ... Execute code ... $t 2 = Microtime (true); Echo ' time-consuming '. Round ($t 2-$t 1,3). ' Seconds '; simply say it. Microtime () If a true argument is taken, the return will be a

Use array[when assigning values to an array in PHP] This method is more efficient than Array_push (), and the following tests are available for various reasons Test code: 1 2/** 3 * Array Performance test 4 *for Cycle has a performance impact, so it'

From. NET to do PHP4 years, and recently began to pursue high performance ~ ~ So I started to think it was time to write a blog. Come and find something first ~ Copy CodeThe code is as follows: $arr = Array ( ' Attr1 ' = 1, ' Attr2 ' = 1, ' Attr3 '