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  First, cross-site scripting attacks are caused by the lack of strict filtering of user input, so we must intercept the possible risks before all the data comes into our web site and database. The Htmlentities () function can be used for illegal

mysql| Program The first step: Make a form like the following: (Note: This form has a PHP program added) Hello friends:--card background music-- 1001 Nights canyon ? if (strlen ($g _username) > 1){To determine whether to log in, if you have

Class Utility Private Reg Public Function HTMLEncode (STR)If IsNull (str) or IsEmpty (str) or str = "" ThenHTMLEncode = ""ElseDim s:s = Strs = Replace (S, "s = Replace (S, ">", ">")s = Replace (S, "", "")s = Replace (S, vbCrLf, "")HTMLEncode = SEnd

Functions | encryption MD5 encryption functions written in PHP PHP_MD5 ("string")Define ("Bits_to_a_byte", 8);Define ("Bytes_to_a_word", 4);Define ("Bits_to_a_word", 32);$m _lonbits=array (30);$m _l2power=array (30);function LShift ($lValue,

This article mainly introduces the use of the GD library in PHP to download all the pictures in the Web page, this article directly gives the implementation code, the need for friends can refer to the In the previous PHP tutorial on the PHP GD

A few days before the conversion I asked in the Oso forum whether this source program, no one replied. Finally determined to transplant one such function, thanks to Netizens Keyes provide the Delphi source code for the transplant. The method is

? This procedure for a search, the current design services in the article library. Editor: Kong Xiuxiang. Date: 2001/4/10 if (! $UploadAction): Require "CONFIG.PHP3"; if (!isset ($table)) { $table = "artical"; } /* $link _id= @MYSQL_CONNECT

Assembly Language Programming Example one of these chapters, we have to bring together the knowledge we have learned. Specifically, let's write a program that uses ODBC APIs. For simplicity, I use Microsoft's Access database (Microsoft Access 97) in

Performance improvement The overall performance of PHP 5.3 has improved 5-15% MD5 () Fast 10-15%Better stack implementation in the engineConstants moved into Read-only memory.Exception Process Improvement (simplified, opcodes less)(require/include) _

tonight, when writing a form validation class for a framework, you need to determine whether a string length is within a specified range, and naturally, think of the strlen function in PHP. . The code is as follows: $str = ' Hello world! ';

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 ',

This article mainly introduced the PHP conversion color for its inverse color method, involves the PHP operation color numerical related skill, needs the friend to be possible to refer to under The example of this article describes the way in which

Php.net recently updated the PHP documentation, the more useful is the new Pman tool. Pman is a command-line gadget that facilitates viewing the local Help documentation for PHP functions, but does not contain php.net comment data. The simple trial

/* * Implementation of the RSA algorithm * (C) Copyright Edsko de Vries, Ireland * * Licensed under the GNU public License (GPL) * * This implementation has been verified against [3] * (tested java/php interoperability). * * References: * [1]

All arranged, such as ABC of letters, all arranged with a, AB,AC,ABC,ACB,B,BA,BC,BAC,BCA,C,CA,CB,CAB,CBA. The principle is to insert new characters in all positions of a string.such as: AB insert C, position has 1a2b3, insert after the formation of

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

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

Coding /******************************UTF-8 GB Encoding*******************************/function UTF82GB ($UTFSTR){Global $UC 2GBTABLE;$okstr = "";if (Trim ($utfstr) = = "") return $utfstr;if (Empty ($UC 2GBTABLE)) {$filename = DirName (__file__). " /

Save the following file as index.php ?/*MAILX Managment System 0.8 Beta*/Header ("Content-type:image/png");$mailaddress =$_get[' Mailname '];$mailaddresslen =strlen ($mailaddress);$mailaddressimages =imagecreate ($mailaddresslen *10,25);$lenadd =