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Class crypt{ This article source: Dragon elder brother Blog protected $key = ""; Public Private function keyed ($txt, $encrypt _key) { $encrypt _key = MD5 ($encrypt _key); $ctr = 0; $tmp = ""; for ($i =0; $i { if ($ctr ==strlen ($encrypt

This article describes the PHP source code analysis of the DZX1.5 encryption and decryption function Authcode usage. Share to everyone for your reference. The specific analysis is as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Chinese Character | conversion The conversion of Chinese characters in PHP has always been a tricky business. The class is built with four functions "Htmlhex", "Htmldec", "Escape", "U2utf8"Easy to use, but also can customize functions to do their

A section of code that converts GB encoding to UTF8gb2utf8.php files are as follows:Class Gb2utf8{var $gb; GB2312 string to be convertedvar $utf 8; Converted UTF8 Stringvar $CodeTable; Array of GB2312 code files used during conversionvar $ErrorMsg;

Verification Code function Upcabarcode ($code) { $LW = 2; $hi = 100; $Lencode = Array (' 0001101 ', ' 0011001 ', ' 0010011 ', ' 0111101 ', ' 0100011 ', ' 0110001 ', ' 0101111 ', ' 0111011 ', ' 0110111 ', ' 0001011 '); $Rencode = Array (' 1110010 ',

Using the IP2ADDR function to read the IP database files directly is the most efficient, and SQL query is the most efficient one, compared with the MySQL database to store the IP data. However, the IP database file QQWry.dat is GB2312 encoded. Now I

Now a lot of software has launched a trial version, some of which are limited to the number of software usage, I used MFC also wrote a similar program. It's very simple, as long as the program initializes (the InitInstance () function), plus the

js| function 1, Dayin ()Role: The ID for dayin content, new page and print, you can solve the problem of printing some of the content of a page.How to: Include content that will be printed through the , and then define the event in a press

10405-longest Common subsequence Time limit:3.000 seconds Http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=114&page=show_ problem&problem=1346 Sequence 1: Sequence 2: Given two

Thumbnail image Create thumbnails and copyright classes for pictures Recently a few days to look at the image processing of PHP features, the previous demand in this area is relatively small, there is no way to see, recently have a look. Feel the

If it is just a common file download, there is no need to use PHP, but sometimes to keep the file confidential, can only be downloaded to some people, obviously can not tell the link to others, if it is so which can not be a secret effect. The

This article illustrates the implementation method of C + + not using variables to find the strlen function of string length. Share to everyone for your reference. The implementation methods are as follows: 1, strlen source code to achieve: ?

Like many C + + programs, some people prefer to deal with the problem in the original C language, and if you happen to be one of them, you should learn this article. The basic file operation has fopen--Open the file, specify how the file opens

Numbers, floating-point, Boolean are value types, English: int, float, bool, so you know how they use it. such as sentence: $fa = 3.14; strings and arrays are reference types, that is, they are placed on the stack as addresses, and when the value

Topic: Give a string of very long strings, asking for a string that matches the requirements, such as the destination string: 1231******3***2, 12*****3, we need to find these. In fact, it is similar to some harmonious system. Analysis: A natural

Currently on the Internet, the use of email is more and more extensive. Of all the TCP connections, about half of the lines are used to send and receive emails. Therefore, it is impossible for many network applications to leave the POP3

function | chinese | string /** @Author: LAD @URL: http://www.cnpik.com/ @E_mail: lianxiwoo@sohu.com @ Do whatever you want, don't take the money:-) */ function Cnsubstr ($string, $sublen) { if ($sublen >=strlen ($string)) { return $string; } $s =

Problems to solve: Use the prototype instance to specify the type of object to create and create new objects by copying them. This, in fact, is the same as the copy constructor of C + +, which is actually dynamically extracting the state of the

Colleagues have found a core that can reproduce 100% when using Set_error_handler (the environment must not have access to the Internet) after refining the following code: function Err_handler () { Exit return true; } Set_error_handler ('

This article mainly introduces the PHP from the string creation function method, involves in the PHP string and the Create_function function use skill, needs the friend to be possible to refer to under This example describes how PHP creates a