explode twice

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Two-dimensional code example using Imagick drawing text for wrapping

Two-dimensional code generation using the QRCode library: http://phpqrcode.sourceforge.net/ The most annoying thing is the word line, processing functions from the network. The function used in the following code is incomplete, the complete code up

PHP Learning Series (1)--String processing function (3), PHP function _php Tutorial

PHP Learning Series (1)--String processing function (3), PHP function 11. The CRC32 () function calculates the crc32 polynomial of a string. A 32-bit cyclic redundancy check code polynomial that generates a string parameter. This function can be

[Bzoj 1012] [JSOI2008] Maximum number of maxnumber

Tags: line treeDescriptionNow ask you to maintain a sequence, the following two operations are required: 1, query operation. Syntax: Q L function: Query the maximum number of L in the number of the end of the current sequence and output the value of

Optimizing Build justice and optimizing code in PHP

1, if you can define the method of the class as static, as far as possible to define static, it will increase the speed of nearly 4 times times. 2, $row [' ID '] speed is $row[id] 7 times times. 3, ECHO is faster than print, and uses Echo's multipl

18 PHP code function fragments that can be sorted directly

Every programmer and developer likes to talk about their favorite pieces of code, especially when PHP developers spend hours coding or creating apps for the web, they know the importance of the code. In order to save the coding time, the author colle

Tutorial _php Optimizing Build justice and optimizing code in PHP

This article summarizes the optimized build justice and optimization code in PHP, and gives PHP programmers a good build justice 1, if the method of the class can be defined as static, as far as possible to define as static, it will increase the

Integer fast multiplication/fast Power + matrix fast power +strassen algorithm

Tags: so the org multiplication overload amp gif matrix operation next POJThe fast power algorithm can be said to be a kind of ACM competition is necessary, and is also a very basic type of algorithm, given that I have been learning more fragmented,

PHP microtime get floating-point timestamp _php tutorial

This function has been used to obtain: Copy CodeThe code is as follows: function Microtime_float () { List ($usec, $sec) = Explode ("", Microtime ()); return (float) $usec + (float) $sec); } See someone else's source with Microtime (true), check

Demo code for the same server using cache APC efficiency above memcached _php tutorial

Copy CodeThe code is as follows: $memcachehost = ' localhost '; $memcacheport = ' 11211 '; function Microtime_float () { List ($usec, $sec) = Explode ("", Microtime ()); return (float) $usec + (float) $sec); } function Runtime ($t 1) { Return

PHP7 RC7 Release Contrast PHP5.6 Quick sort 20000 data performance experience and new grammar taste

Recently Zend's PHP7 has been in the final bug fix phase, has been updated RC7, for Zend's official claim PHP7 performance is approximately twice times higher than the PHP5 series version, adding some new syntax, rejecting some of the PHP5 factors af

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