(PHP 4, PHP 5)
base64_decode — Decodes data encoded with MIME base64
$data
   [, bool $strict = false
  ] )
   Decodes a base64 encoded data.
  
dataThe encoded data.
strict
       Returns FALSE if input contains character from outside the base64
       alphabet.
      
   Returns the original data or FALSE on failure. The returned data may be
   binary.
  
| Version | Description | 
|---|---|
| 5.2.0 | strictadded | 
Example #1 base64_decode() example
<?php
$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);
?>
The above example will output:
This is an encoded string