php base64_decode and base64_encode_PHP tutorial

php base64_decode and base64_encode ​

base64_decode
(PHP 4, PHP 5)

base64_decode - Base64 encoded MIME of decoded data

Description
string base64_decode (string $data[, boolean $strict=false])
Decode a BASE64 encoded data.

Parameters

Data
Encode data.

Strict
Returns FALSE if the input contains characters outside of a base64 alphabet.


Return value
Returns raw data or FALSE on failure. The data returned may be binary.

Modify

Release Notes
5.2.0 Strict Supplement


Example

Example #1 Example of base64_decode()

$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);
?>
The above example will output:

This is an encoded string

base64_encode
(PHP 4, PHP 5)

base64_encode - Base64 using MIME encoded data

Description
String base64_encode (String $data)
Encode specific data to Base64.

This encoding is intended to enable binary data to survive transport through transport layers that do not support 8-bit encoding, such as email agencies.

Base64-encoded data takes approximately 33% more space than the original data.

Parameters

Data
The data are coded.


Return value
Encoded data, as a string.

Example

Example #1 base64_encode() example

$str = 'This is an encoded string';
echo base64_encode($str);
?>
The above example will output:

VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

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