What does the php base64_decode() method do?

In PHP, the base64_decode() method is used to decode data encoded using MIME base64 and return the original data, the syntax is "base64_decode($data,$strict)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In php, we can use base64_encode() function to perform base64 encryption, and the base64_decode() function can decrypt.

The base64_decode() function is a built-in function in PHP that is used to decode data encoded using MIME base64.

Syntax:

base64_decode(string $data, bool $strict = false)

Decode base64 encoded data.

Parameters: This function accepts two parameters

• data: encoded data.

• strict: an optional parameter. When strict is set to true, once the input data exceeds the base64 alphabet, false will be returned. Otherwise invalid characters are silently discarded.

Return value: Return the original data, or return false on failure. The data returned may be binary.

Example:

<?php
$str = &#39;SGVsbG8gV29ybGQ=&#39;;
echo base64_decode($str);
?>

Output result:

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