PHP code example for reading and processing large CSV files by line _php Tutorial

For millions of data volumes of CSV file, the file size may reach hundreds of m, if simply read, it is likely to have a time-out or a card-dead phenomenon. Batch processing is necessary in order to successfully import data from a CSV file into a

Zend_cache caching using the ZF Framework (Zend Framework) _php Tutorial

Zend_cache the basic operation of the file cache, the code has written comments, let's study together Copy CodeThe code is as follows: Require_once ("zend/loader.php"); Load Zend Cache Class (Zend_cache) Zend_loader::loadclass

Understanding PHP's Factory model factory pattern_php tutorial

The factory class is a class that is designed to create other objects, and factory classes are very important in the practice of polymorphism programming. It allows you to dynamically replace classes, modify configurations, and make your application

PHP read large File class Splfileobject usage Introduction _php Tutorial

spl

If the load of the file is particularly large, such as hundreds of M, on the G, then the performance down, then there is no big file in PHP processing functions or classes it? The answer is: yes. PHP is really more "object-oriented", some of the

CodeIgniter caching mechanism and how to use _php tutorial

Database Cache The database Cache class allows you to save database query results in a text file to reduce database access. Activating the cache requires three steps: Create a writable directory on the server to save the cache file. Set

A phpquery-based PHP Common collection class sharing _php tutorial

First, the source of the collection class Copy CodeThe code is as follows: /** * Universal List Acquisition Class * Version V1.3 * Author: JAE */ Require_once '. /phpquery/phpquery/phpquery.php '; Class querylist{ Private $pageURL; Private $REGARR

How to use cookies in PHP _php tutorial

1. Create/Update cookies Copy CodeThe code is as follows: Setcookie ($cookieName, $value, time () + number of seconds); Example: Create a cookie with a name of username and a value of ZS with an expiration time of 2 weeksCopy the Code code as

PHP: Chinese Pinyin class (full spelling and initials) _php Tutorial

kanji to Pinyin (all spelling and initials) =' A ' =>-20319, ' ai ' =>-20317, ' an ' =>-20304, ' ang ' =>-20295, ' ao ' =>-20292, ' ba ' =>-20283, ' Bai ' =>- 20265, ' ban ' =>-20257, ' bang ' =>-20242, ' bao ' =>-20230, ' bei ' =>-20051, ' Ben '

PHP implementation bubbling Algorithm _php tutorial

Bubble_sort ((= 6;> 0;- - ( = 0 ; ; ++ ([ ] [ + 1 = [[] = [ + 1[+ 1] = ( /c60> . " "Complexity of Time: O (n^2) http://www.bkjia.com/PHPjc/742173.html www.bkjia.com true http://www.bkjia.com/PHPjc/742173.html

PHP Delete all files under folder and its folder _php tutorial

function Deldir ($dir) { $DH =opendir ($dir); while ($file =readdir ($DH)) { if ($file! = "." && $file! = "...") { $fullpath = $dir. " /". $file; if (!is_dir ($fullpath)) { Unlink ($fullpath); } else { Deldir ($fullpath); } } } Closedir ($DH); if

Get it straight, Super Practical PHP code Snippet (ii) _php tutorial

Every programmer and developer likes to discuss their favorite snippets of code, especially when PHP developers spend hours coding or creating apps for a Web page, and they know the importance of the code. In order to save the coding time, the

PHP Memcache class sharing (memcache queue) _php Tutorial

memcacheQueue.class.php Copy CodeThe code is as follows: /** * PHP Memcache Queue class * @author lkk/lianq.net * @version 0.3 * @ Modify Description: * 1. Discard the previous AB rotation thinking, using an array-like construct, overriding this

Solve the problem of PHP Json_encode in Chinese transcoding and garbled _php tutorial

JSONENCODEWITHCN ( ("/\\\u ([0-9a-f]{4})/ie", "Iconv (' ucs-2be ', ' UTF-8 ', pack (' H4 ', ' $ '))", Json_encode ( (' a ' = ' test ', b=> ' hello ' JSONENCODEWITHCN ( ); http://www.bkjia.com/PHPjc/752222.html

Invalid n line break in PHP string, no wrapping workaround _php Tutorial

For example, the following code: Copy CodeThe code is as follows: Echo ' hello\n '; echo ' World '; ?> The line break in the program \ n is output directly, and the workaround is to change the single quotation mark to double quotation marks: Copy

How to prevent a site from being accessed by a malicious reverse proxy (anti-site mirroring) _php Tutorial

What is a reverse proxy? First talk about the concept of a forward proxy: The forward proxy, the legendary agent, works like a springboard. Simply put, I'm a user, I can't access a website, but I can access a proxy server. This proxy server, he

Several ideas of PHP development _php Tutorial

1. If you want to develop quickly, consider using the MVC framework Using an MVC framework like CodeIgniter is very effective in rapid development, and the MVC framework does not force you to write object-oriented code that separates PHP code from

Yii yii Widget Create login form form Login Form _php Tutorial

yii

The YII framework must follow its form creation method The error of the login model is consistent with the database operation model, and the difference is not interacting with the database , use the widget to complete the following code in the user

PHP global variable _php tutorial

= " why" = "What" ChangeName (); . ""?>The result of executing the code is: My name was why, not the ChangeName () after performing the What. Analyze the reason, because the function body changename within the $name variable is set to local

PHP memory leak problem and garbage collection _php tutorial

You write a PHP script, generally do not consider memory leaks and garbage collection problems, because in general, your script will be executed soon after the exit. But in some long run time, the data volume is large, the program runs for a period

To write a simple PHP MVC structure _php Tutorial

MVC structure, in fact, is the abbreviation of three model,contraller,view words, Model, the main task is to database or other file system data according to the way we need to read out. View, mainly responsible for the page, the data in the form of

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