Htaccess    html   Php    javascript   Asp   css    maths  Past Questions  Practice Tests Online

mcrypt generic init function syntax tag tutorial 2013 Donate at flattr Flattr this





Alert! Connect with 10,000 Chating Online. Join Now

Php mcrypt generic init () function

Write your php code

 
<?php ?>

Php Result


Your code below



(PHP 4 >= 4.0.2, PHP 5)

mcrypt_generic_init -- This function initializes all buffers needed for encryption

Syntax

int mcrypt_generic_init ( resource td, string key, string iv )

The maximum length of the key should be the one obtained by calling mcrypt_enc_get_key_size() and every value smaller than this is legal. The IV should normally have the size of the algorithms block size, but you must obtain the size by calling mcrypt_enc_get_iv_size(). IV is ignored in ECB. IV MUST exist in CFB, CBC, STREAM, nOFB and OFB modes. It needs to be random and unique (but not secret). The same IV must be used for encryption/decryption. If you do not want to use it you should set it to zeros, but this is not recommended.

The function returns a negative value on error, -3 when the key length was incorrect, -4 when there was a memory allocation problem and any other return value is an unknown error. If an error occurs a warning will be displayed accordingly. FALSE is returned if incorrect parameters were passed.

You need to call this function before every call to mcrypt_generic() or mdecrypt_generic().

See for an example mcrypt_module_open().

Php mcrypt generic init Function syntax tag

mcrypt generic init php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online



Php mcrypt generic init syntax tutorial

php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.


Function index

Variables

Expressions

Operators

Control-Structures

Cookies

Array

Date & Time

Directory function

File

Image

Operators

Form data handling

Mathematics operators

Mail

Php Mysql

Network Functions

Strings

php tutorial guides,functions, classes, code examples and tags for creating simple dynamic site to mysql database driven sites
 
 
Htaccess    html   Php    javascript   Asp   css    maths  Past Questions  Practice Tests Online