Two way encryption in PHP Mcrypt

This class provides the functionality to encrypt and decrypt a text string. The class makes use of the PHP mcrypt extension which provides the ability to create two way encryption, or decoding of text messages.

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

error_reporting(E_ALL);

class runCrypt 
{
    /**
    *
    * This is called when we wish to set a variable
    *
    * @access    public
    * @param    string    $name
    * @param    string    $value
    *
    */
    public function __set( $name, $value )
    {
        switch( $name)
        {
            case 'key':
            case 'ivs':
            case 'iv':
            $this->$name = $value;
            break;

            default:
            throw new Exception( "$name cannot be set" );
        }
    }

    /**
    *
    * Gettor - This is called when an non existant variable is called
    *
    * @access    public
    * @param    string    $name
    *
    */
    public function __get( $name )
    {
        switch( $name )
        {
            case 'key':
            return 'keee';

            case 'ivs':
            return mcrypt_get_iv_size( MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB );

            case 'iv':
            return mcrypt_create_iv( $this->ivs );

            default:
            throw new Exception( "$name cannot be called" );
        }
    }

    /**
    *
    * Encrypt a string
    *
    * @access    public
    * @param    string    $text
    * @return    string    The encrypted string
    *
    */
    public function encrypt( $text )
    {
        // add end of text delimiter
        $data = mcrypt_encrypt( MCRYPT_RIJNDAEL_128, $this->key, $text, MCRYPT_MODE_ECB, $this->iv );
        return base64_encode( $data );
    }
 
    /**
    *
    * Decrypt a string
    *
    * @access    public
    * @param    string    $text
    * @return    string    The decrypted string
    *
    */
    public function decrypt( $text )
    {
        $text = base64_decode( $text );
        return mcrypt_decrypt( MCRYPT_RIJNDAEL_128, $this->key, $text, MCRYPT_MODE_ECB, $this->iv );
    }
} // end of class

?>

Example Usage

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/


// a new runCrypt instance
$crypt = new runCrypt;

// encrypt the string
$encoded = $crypt->encrypt( 'my message');
echo $encoded."\n";

// decrypt the string
echo $crypt->decrypt( $encoded ) . "\n";

?>

By: 4evertutorials On 7/20/2013

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Round up to multiple in php

Here is a simple function that will round a number up to a given multiple. may this help you

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

function roundUpToMultiple( $number, $multiple)
{
    return ceil( $number/$multiple ) * $multiple;
} 


?>

Example Usage

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

echo roundUpToMultiple( 12, 7 );

?>

By: 4evertutorials On 7/20/2013

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