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This article provides a detailed analysis of PHP and browser cache. For more information, see the various optimization solutions on the server. Client CacheTo be precise, it is the browser cache mechanism. In fact, each browser has a cache policy,

Follow the instructions in the PHP documentationA generator function looks like a normal function, unlike a normal function that returns a value, and a generator can yield many of the values it needs.When a generator is called, it returns an object

Php sorted 0.1 billion QQ numbers and posted them. Split into thousands of parts for sorting and merging. First, create a txt file with 0.1 billion QQ numbers. $ V) {$ arr = range ($ v * 10000 + 10000,100 00 * ($ v + 1) + 9999); shuffle ($

Download TP 3.2.3 and upgrade your local TP3.2.2. Found some still not fixed and new bug (welcome communication, if need to reprint, please famous from [email protected]):1) file thinkphp/library/behavior/tokenbuildbehavior.class.php line

Provides various official and user-released code examples. For code reference, you are welcome to learn about edauth's efficient reversible random encryption function. The performance is better than Discuz's authcode function and the response is

Add it to head.htm, that is, add "$ stime = microtime (true); // get the start time of the program" to the default template"Copy codeThe Code is as follows:$ Stime = microtime (true); // gets the time when the program starts to run.$ GuideFid [$ fid]

We often optimize cache settings on servers, but we seldom notice thatClient CacheTo be precise, it is the browser cache mechanism.In fact, each browser has a cache policy, which temporarily caches each browsed file in a special folder. When you

Set Speed test for Predis Redis, PHP, set: Set/Get100000:Start:1442496208.9368Xubo0:0-- Time:0.00039482116699219sxubo10000:10000-- Time:0.49174094200134sxubo20000:20000-- Time:0.89022397994995sxubo30000:30000-- Time:1.2952389717102sxubo40000:40000--

This article mainly introduces the backup and restoration class for php databases. For more information, see The code is as follows: /*** Database backup and restoration* @ Author xialeistudio* Class DatabaseTool*/Class DatabaseTool{Private $

Two problems of easy parameter under high concurrent request 1. Data error, resulting in product oversold. 2. Frequent database operations, resulting in degraded performance. This article mainly and everybody introduced in detail the PHP processing

PHP database backup and restoration php code 'Localhost', 'port' => 3306, 'user' => 'root', 'password' => '', 'database' => 'test ', 'charset' => 'utf8', 'target' => 'SQL. SQL '); private $ tables = array (); private $ error; private $ begin; //

This article provides a detailed analysis of how to use php to obtain the execution time of a program. For more information, see add the following content to head.htm, that is, add "$ stime = microtime (true); // get the execution start time of the

This time for everyone to bring the PHP processing snapping high-class concurrent requests to implement the detailed, PHP processing high-quality requests for the attention of the request, the following is the actual case, take a look. This article

: This article mainly introduces the php computing program running time. if you are interested in the PHP Tutorial, refer to it. Microtime ()The function returns the current Unix timestamp and the number of microseconds. Echo (microtime (); 0.478

Found the original of this seriesHttp://www.cnblogs.com/rush/archive/2012/02/05/2339037.htmlRecently, network security has become a focal point, in addition to the security events of plaintext passwords in China, there is one more thing that affects

Copy CodeThe code is as follows: /** * Database backup Restore class * @author Xialeistudio * Class Databasetool */ Class Databasetool { Private $handler; Private $config = Array ( ' Host ' = ' localhost ', ' Port ' = 3306, ' User ' = ' root ', '

Evaluate a function that uses php to quickly generate a bar chart. it is slow to complete a simple function. Evaluate a function that uses php to quickly generate a bar chart. it is slow to complete a simple function. As a beginner, I only use CSS

As the manual says, the only difference between these two functions is that Pfsockopenis a continuous connection, and FsockopenNo. I wrote a code for a moment: Copy CodeThe code is as follows: $data = "1,0,721,73,1,0,0,43290000,0,60D81D509BC00451,3

The basic principle is to assume that the variable $ a, $ B, $ c = $ a ^ $ B (variable a is different or variable B), so we have $ a = $ B ^ $ c, $ B = $ a ^ $ c and above are applications with an exception or logic. (question: how to swap the

I used the Microtime () function at the beginning and end of the program to get the current time, and then subtract the program run time, in the 5.2 version of PHP no problem, but in 5.3, 5.4 and 5.5 Three versions of the PHP subtraction result is