PHP Code for Base64 Encoding and Decoding

In PHP, we can directly use PHP’s built-in functions base64_encode() and base64_decode() for encoding and decoding. Let’s get straight to the point:

Example 1. base64_encode() example

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<?php
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$str = 'This is an encoded string';
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echo base64_encode($str);
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?>

This example will display: VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

Example 2. base64_decode() example

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<?php
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$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
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echo base64_decode($str);
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?>

This example will display: This is an encoded string

PHP parameter integration.

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<?php
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$str = $url;
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echo base64_decode($str);
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?>