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base64_decode
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base64_decode

Name

base64_decode — Decodes a string encoded with base64 encoding.

Synopsis

string base64_decode(encoded_data); string encoded_data: String to be decoded

Returns

Decoded string; FALSE if the argument passed has no length when converted to a string

Description

base64_decode() decodes a base64 string and returns the decoded data. The data returned may be character or binary data.

Note

Base64 encoding is used to encode data before it's transferred across legacy email systems that only support 7-bit ASCII. For more information on base64, refer to RFC 2045.

Version

PHP Version: 3+, 4+

Example

Example 1365. Demonstrate how base64_decode() works

$data = "Hey Jude"; 
$encoded = base64_encode ($data);
$decoded = base64_decode ($encoded);

print <<<_END_
Original Data: $data
Encoded Data : $encoded
Decoded Data : $decoded
_END_;


Output:
Original Data: Hey Jude
Encoded Data : SGV5IEp1ZGU=
Decoded Data : Hey Jude

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.