echo s

Discover echo s, include the articles, news, trends, analysis and practical advice about echo s on alibabacloud.com

PHP Classes and objects

Look at an example The code is as follows Copy Code Class Cart {     var $items; //Shopping cart Items    //Put $num $a Rtnr into the car     function Add_item ($ARTNR, $num)     {          $this->items[$artnr] + =

Linux generates chain password key shell script

I wrote one of these posts before, but because Ecvps went bankrupt, so I lost two months of data, that article was lost, but I also updated the script method, there will be content generation key chain and no content automatically randomly generated

The operation and comparison instance of the shell script handling floating-point numbers _linux shell

The percentage of CPU, memory usage of the process seen through the top command is a floating-point number, and I need to process it while writing the script, so I learned a few things and summarized as follows. In fact, the Shell (here is bash)

PHP--Database information

-----023-dbinfo.php-----12345mysql Database Information 678mysql Database Information 9TenPHP One /* A mysql_connect () performing a connection - mysql_query () Execute SQL statement - mysql_result (Resource, row, [column]) query specific data the

How to encrypt PHP source code? PHP binary encryption and decryption solution _ php instance

This article introduces how to encrypt PHP source code? PHP binary encryption and decryption solutions. For more information about PHP source code encryption, see. Note: The encrypted PHP code does not need to be decrypted by a third-party tool.

PHP functions and small knowledge points

PHP//Statement//Branch statement/*$a =5; if ($a ==5) {echo "equal";} else{echo "Budeng";}*///If//if...else//if...else. Nesting of if//if/*switch ($a) {case 1:echo "111"; Break Case 2:echo "222"; Break Case 3:echo "333"; Break Case

Basic syntax for PHP

PHP: A powerful scripting languageB/s:brower: Browser server: ServerC/S: Client: Clients Server: ServersI. Markup for PHP embedded pages1. 2. 3. Two: PHP's comment syntax1.//Single-line comment2. #单行注释3./* * * Multi-line CommentThree: The output

PHP Source code Encryption

       function RandAbc($length=""){//返回随机字符串       $str="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";    return str_shuffle($str);     }    $filepath=‘index.php‘; $path_parts=

Learn to write: Python Add user settings password concurrent mail to root user

#!/usr/bin/env python #coding: UTF8 import os Import sys Import mkpasswd       //This is written previously, call Import string content = "" Username: ${user} Password: ${password} "" " T = String. Template (content) def adduser (username,

What does the braces {} in php mean?

1. {} indicates the start and end of the program block. For example Copy codeThe Code is as follows:If ($ x = $ y){Do_nothing ();} 2. {} indicates the subscript of a string. For example(Reference longnetpro)$ S {1} indicates the 2nd bytes (not

Detecting web site hangs Ma Cheng (Python)

The system administrator usually retrieves the code from the Svn/git, after deploying the site usually first generates the MD5 value of all the files of the site, if the Site page content is tampered with (such as hanging horse), etc., can be

Ubantu permission Improvement

#! /Bin/bash## Exploit Title: Ubuntu pam motd local root# Date: July 9, 2010# Author: Anonymous# Software Link: http://packages.ubuntu.com/# Version: pam-1.1.0# Tested on: Ubuntu 9.10 (Karmic Koala), Ubuntu 10.04 LTS (Lucid Lynx)# CVE: CVE-2010-0832#

Php user password encryption algorithm analysis [Discuz encryption algorithm], discuz Encryption Algorithm

Php user password encryption algorithm analysis [Discuz encryption algorithm], discuz Encryption Algorithm This example describes the php user password encryption algorithm. We will share this with you for your reference. The details are as follows:

Several ways to write and read XML using PHP _ PHP Tutorial

You can write and read XML in PHP. 1. use DOM to generate and read XML files. Example 1: Copy the code as follows :? PhpCreatesXMLstringandXMLdocumentusingtheDOM $ domnewDomDocument (1.0); addroot-bo 1. use DOM to generate and read XML

What does the braces {} in php mean?

This article mainly introduces some functions of brackets {} in php. if you are a friend of php, you can see that 1 and {} indicate the beginning and end of the program block. For example The code is as follows:If ($ x = $ y){Do_nothing ();} 2.

PHP Study Notes 2 _ PHP Tutorial-php Tutorial

PHP study note 2. 1. the array PHP array is actually an associated array, or a hash table. PHP does not need to declare the array size in advance. you can create an array by directly assigning values. For example 1. arrayThe PHP array is actually an

Detailed explanation of the Singleton mode in php implementation design mode

This article mainly introduces the Singleton mode in php implementation design mode. This article describes in detail the Singleton mode in php and provides code instances. For more information, see Summary] Ensure that a class has only one

PHP unlimited classification class _ PHP Tutorial

PHP unlimited classification class. Copy the code as follows :? Php *** @ authorYangHuan * @ datetime * @ version1.0.0 *** invalid description. ** Detaildescription * @ author * @ version1.0 * @ copyright * @ acce The code is as follows: /*** @

How to convert data from Excel to mysql through 20-line statements

20 rows of statements are converted from Excel to mysql. Since I had some knowledge of php and mysql, I have been very keen on sharing confidential commercial data with the company's huge Excel database, as I thought about how to get a hand, since I

How to split strings in PHP _ PHP Tutorial

Describes how to split strings in PHP. Result: Array ([0] 1 [1] 2 [2] 3 [3] 4) defines and uses the str_split () function to split the string into arrays. The length syntax indicates the number of each string.Result: Array ([0] => 1 [1] => 2 [2] => 3

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