chr ord

CSRF (Cross-site request forgery cross-site solicitation forgery, also known as "one click Attack" or Session Riding, usually abbreviated as CSRF or XSRF, is a malicious use of the site. Although it sounds like a cross-site script (XSS), it is very

Simple login class, not separate login and database query Copy the Code code as follows:/** Example** $Auth =new Auth ();* $Auth->login ("123@123.com", "123");* $Auth->logout ();* Echo $r->init ();***/ Verify the Login class Copy CodeThe code is as

Copy CodeThe code is as follows: /** * $string Clear text or ciphertext * $operation encrypt encode or decrypt decode * $key Key * $expiry Key Expiration date */ function Authcode ($string, $operation = ' DECODE ', $key = ", $expiry = 0) { Dynamic

If the ASCii code is greater than 0xa0, it is half a Chinese character. learn about substr (), mb_substr (), and ord (). The commonly used encoding formats are UTF8, GBK, GBK2312, and BIG5. GBK is an upgrade of GBK2312. If the ASCii code is greater

How does delphi connect to SQL Delphi/Windows SDK/API by configuring the INI file? Http://www.delphi2007.net/DelphiDB/html/delphi_20061221172852177.html How does delphi configure the INI file to connect to SQL? There are no examples or Code ? I

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/56/BD/wKiom1SL0sXh7uooAACSbf0skt8098.jpg "title=" 4.png " alt= "Wkiom1sl0sxh7uooaacsbf0skt8098.jpg"/>After downloading the files, the file command looks at the ELF32 program, the Strings

1 Find the character position function: Strpos ($str, Search,[int]): Find the first position of search in $str starting with int; Stripos ($str, search,[int]): function returns the position of the first occurrence of a string in another string. This

The principle is as follows, if: Encryption PlainText: 1010 1001 Key: 1110 0011 Ciphertext: 0100 1010 The ciphertext 0100 1010, the decryption of the need and key can be different or down Decrypt Ciphertext: 0100 1010 Key: 1110 0011 PlainText: 1010 1

The specific sample code for the PHP cryptographic decryption function Authcode is as follows: Parameter interpretation $string: Clear Text or redaction $operation: Decode means decryption, other means encryption $key: Key $expiry:

Unit unit1;interfaceuses  windows, messages, sysutils, variants, classes,  Graphics, Controls, Forms,  Dialogs, OleCtrls, MSCommLib_TLB,  Stdctrls, extctrls;type  tform1 = class (Tform)     Panel1:  tpanel;    panel2: tpanel;    checkbox1: tcheckbox;

1 Find the character position function: Strpos ($str, $seach, [int]); Find the first position of search in $str starting with int; Stripos ($str, $seach, [int]); The function returns the position of the first occurrence of the string in another

function I_array_column ($input, $columnKey, $indexKey =null) { if (!function_exists (' Array_column ')) { $columnKeyIsNumber = (Is_numeric ($columnKey))? True:false; $indexKeyIsNull = (Is_null ($indexKey))? True:false; $indexKeyIsNumber =

(1) the first two functions of echo, print, printf, and sprintf are output strings. if there is a variable name in the string, it is replaced with its value. the last two functions are similar to C functions with the same name. (2) strchr, strlen,

Copy CodeThe code is as follows: // +----------------------------------------------------------------------+ // | Willko Framework | // +----------------------------------------------------------------------+ // | Copyright (c) 2008-2009 Willko

User Login Cookie Information security one or two, cookie information security We all know that after the user login, the user information will generally choose to save in the cookie, because the cookie is to save the client,and cookies can be

The simplest is to useExample 1 The code is as follows:Copy code Echo substr ("Hello world! ", 6 );?> Output:World!Example 2Echo substr ("Hello world! ", 6, 5 );?> There is no problem in English, but there is a problem in Chinese. Next we will

1. Find the character position function: Strpos ($str, Search,[int]): Find the first position of search in $str starting with int; Stripos ($str, search,[int]): function returns the position of the first occurrence of a string in another string.

The CHR function is used to convert an ASCII code to a character The ORD function is used to convert characters to ASCII code ASCII code is the computer can display the character encoding, its value range is 0-255, including punctuation, letters,

PHP string function classification, phpstring function 1. Find the character position function: Strpos ($str, Search,[int]): Find the first position of search in $str starting with int; Stripos ($str, search,[int]): function returns the position of

Classic PHP Cryptographic decryption function authcode () fix code Authcode This function is used by many people, this function from the Discuz program, used to encrypt and decrypt the string, you can set the key (key) and expiration time, in many