<?php
/*
* email_address_cloaker.php
*
* Author: Steve Werby <steve at(@) befriend dot(.) com>
* Created: 2000-11-24
* Revised: 2001-02-16
*
* Purpose: Cloaks an email address to reduce harvesting by spambots.
*
* Latest version always available at http://www.befriend.com/
*********************************************************************/

// Obfuscates an email address to reduce harvesting by spambots
// by cloaking the email address by replacing dots and at signs
// with HTML entitities, words and spaces in order to generate
// a human-comprehendable email address.
//
// There are a practically unlimited number of variations possible
// so feel free to edit to suit your needs and make spammers' jobs
// that much more difficult!
//
// As written if a style isn't supplied as a parameter then the
// first case is used and if an invalid style is specified the
// second case is used.

function email_address_cloaker( $email, $style = 1 ) 
{    
    switch( $style )
    {
        case 1:
            $cloaked = str_replace( "@", "&nbsp;at&nbsp;", $email );
            $cloaked = str_replace( ".", "&nbsp;dot&nbsp;", $cloaked );
            break;
        case 2:
        default:
            $cloaked = str_replace( "@", "&nbsp;at(@)&nbsp;", $email ); 
            $cloaked = str_replace( ".", "&nbsp;dot(.)&nbsp;", $cloaked ); 
            break;
    }       
    
    return $cloaked;
}

/*
* Usage of email_address_cloaker().
*********************************************************************/

echo email_address_cloaker( 'user@somewhere.com', 2 );
  
?>