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Lead HashMap is a common data structure, understanding the HashMap, to improve the efficiency of the code is a great help. HashMap optimizes the data structure in JDK1.8: It improves the efficiency of query and deletion . Of course, this

Redis learning Notes: The php function PHPRedis is often used here: blog. csdn. netxundharticledetails46288277 key value operation $ redisnewRedis (); $ redis-& gt; connect (127.0.0.1, 6379); parameter: connect (host, port, timeout Redis study notes

This post was last edited by Tottyandbaty on 2013-08-30 23:43:38 Before the forum was asked about this question, the original http://bbs.csdn.net/topics/390310377?page=1#post-393233055 I tried to write this PHP version of Authcode into the JS

About how to convert the Authcode function of DZ to the JS version. This post was last edited by TottyAndBaty at 23:43:38 Someone asked this question in the forum. Http://bbs.csdn.net/topics/390310377? Page = 1 # post-393233055 I tried to

PHP encryption and decryption string functions frequently used in programs The code is as follows: /********************************************************************* function Name: Encrypt function: Encrypt decryption string use method:

GpgfunctionGPG is a free tool for encryption and digital signatures, mostly for the transmission of encrypted information. In addition to password-only encryption, the biggest difference in GPG is the provision of a "public/private key" pair. Use

Welcome to the Linux community forum and interact with 2 million technical staff. The php array is very powerful. Some data is directly written to files without being stored in the database, and require shares the code for the first time; (It is

Php arrays are very powerful. some data is directly written to files without being stored in the database. when used, require shares the code for the first time) Php arrays are very powerful. some data is directly written to files without being

Redis currently supports 5 types of data, namelyString (String)List (lists)Hash (dictionary)Set (SET)Sorted set (ordered set)Redis data types1. String typeSet key value Setting Key=valueThe value corresponding to the GET key or keyGETRANGE key start

Digital envelope encryption technology (algorithms combined with RSA and DES) This algorithm combines the advantages of DES and RSA. Principle: !. The sender uses the des key to encrypt important data. 2. the sender uses the RSA public key to

Mongodb's efficient access speed can be used to quickly access data. In addition, it may be too costly to create a table separately if only a few pieces of data are stored.   Start with a mongodb data access help class public class MongdbHelper :

Redis Installation and useRedis Installationwget http://download.redis.io/redis-stable.tar.gztar zxvf redis-stable.tar.gzcd redis-stable.tar.gzmakemake InstallRedis BootRedis-serverRedis offREDIS-CLI shutdownConfigurationMethod

This article is mainly to share with you PHP operation Redis Life, hope to help everyone. To confirm that the server has the Redis service turned onThe Redis port number is 6379 by default A small example code Header ("Content-type:text/html;charset=

PHPRedis operations /*************************************** **************************************** ** * InitPHP 2.0 domestic php development framework Dao-Nosql-Redis *-------------------------------------------------

Php implements code for saving arrays to files. The first time I shared the code, php arrays were very powerful, and some data was directly written to files without being stored in the database. (In reality, the first time I shared the code; (the

File, array to save the array to the file $ Value) {$ str = $ GLOBALS [$ key]; $ GLOBALS [$ key] = 'changed '; if (& $ data = 'changed ') {$ strName = $ key; break;} $ GLOBALS [$ key] = $ str;} ob_clean (); ob_start (); echo" $ Value) {++ $ I;

Php arrays are very powerful. Some data is directly written to files without being stored in the database, and require is used directly. Php arrays are very powerful. Some data is directly written to files without being stored in the database, and

Save the php code to the php file. For a lot of time, we need to save the php code generated by php to the php file. for example, if some basic data is used to cache, it will be directly saved to a specified php Cache file, we need to save the php

A lot of time we need to save PHP generated PHP code inside the php file, like if the use of the cache when some basic data is saved directly to a specified PHP cache file, let's look at the example below. The code is as follows Copy

Introduction to Binary search tree:the two-fork search tree usually takes a binary chain as the storage structure of the binary search tree. In order to get the ordered sequence of a key word, an unordered sequence can be constructed by constructing