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A question about microtime (): php function for obtaining Time $ gtc_end_time = microtime (true); & nbsp; in the following series (1000), 19493845809,24359390850934, 3435345, 4345345, 5345 question about microtime () Php time retrieval function $

One, applicable scenario: cannot use the self-growth number returned from the database to rename the uploaded image. This is determined by the process of picture or file upload.General image upload process is to upload images to the server, after

PHP Multi-thread internal multi-threaded instance analysis, PHP multithreaded instance analysis In this paper, we analyze the multi-thread usage within PHP. Share to everyone for your reference. Specific as follows: Copy CodeThe code is as follows:

PHP implementation method of Memcache consistency hash This article mainly introduced the Memcache consistency hash PHP implementation method, the example analyzes the hash consistency in the memcache the realization principle and the related skill,

PHP 5.3 or later, using the pthreads PHP extension, you can make PHP really support multi-threading. Multithreading in the processing of repetitive cyclic tasks, can greatly shorten the program execution time.As I said in my previous article, most

It's all about a Unix-only server-compatible multi-process, and here's a multi-course that's compatible with both Windows and UNIX (in this case, the following curl is actually implemented by IO multiplexing).A typical example of multithreading by

An Advanced DoS attack-Hash collision attack and dos-hash collision Original article link This is the first attack method I have been afraid of so far. It is difficult to defend against a wide range of attacks, and the attack effect is immediate. A

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 comparison.The APC extension of PHP is described in the following

PHP quick sorting algorithm details Concept Here we use a diagram of Baidu encyclopedia, which is very vivid: The quick sorting algorithm is an optimization of the bubble algorithm. His idea is to first split the array and put the large element

from:http://zyan.cc/pthreads/PHP 5.3 or later, using the pthreads PHP extension, you can make PHP really support multi-threading. Multithreading in the processing of repetitive cyclic tasks, can greatly shorten the program execution time.As I said

PHP Real multi-threaded use big | Medium | Small [2013-12-17 11:17 | by banquet] PHP 5.3 or later, using the pthreads PHP extension, you can make PHP really support multithreading. Multithreading in the processing of repetitive cyclic tasks, can

/*** Write lock test* Open thread 1*/Require ("file_lock.php ");$ Lock = new File_Lock (dirname (_ FILE _). "/FileLock. lock ");/** The lock speed of a single thread is 30 thousand times per second. **//** Two threads write, 20 thousand of the data

Laravel Intervention/image processing extended package installation, usage, and possible pitfalls, Preface Intervention/image is an image processing tool customized for Laravel. It provides an easy-to-express way to create and edit images. For the

Research and summary of six kinds of PHP image uploading and renaming scheme First, the application scenario Unable to rename the uploaded image using the self-growth numbers returned from the database. This is determined by the process of picture

The implementation of php multi-process depends on the pcntl extension. During PHP compilation, you can add '-enable-pcntl' or compile it separately.Note the following three points:1. The sub-process does not execute the code before fork, but just

As I said in my previous article, most Web site performance bottlenecks are not on the PHP server because it can easily be done by horizontally increasing the number of servers or CPU cores (for various cloud hosts, increasing the number of VPS or

//Bubble SortfunctionBubble_sort ($arr){ $count=Count($arr); for($i= 0;$i$count;$i++){ for($j=$count-1;$j>$i;$j--){ if($arr[$j]$arr[$j-1]){ $tmp=$arr[$j]; $arr[$j] =$arr[$j-1]; $arr[$j-1] =$tmp; } } }

I. Application scenarios: the auto-increment numbers returned from the database cannot be used to rename the uploaded image. This is determined by the process of uploading images or files.Generally, the Image Upload process is to upload the image to

PHP 5.3 or later, using the pthreads PHP extension, you can make PHP really support multi-threading. Multithreading in the processing of repetitive cyclic tasks, can greatly shorten the program execution time.Installation under the LiunxPreparatory

Recently (looks like number 28th) from abroad (address: http://nikic.github.com/2011/12/28/Supercolliding-a-PHP-array.html) burst a new PHP conflict about array, You can use a conflict that invokes a hash table to make a denial-of-service attack on