Base64 Decode Php Online with Our Free Tool

Below is a list of libraries that support Base64 encoding and decoding in PHP along with sample code for each library.

1. PHP Standard Library (PHP 5.0 and above)

PHP provides the base64_encode and base64_decode functions in its standard library.

<?php
$originalString = "test input";

// Encode
$encodedString = base64_encode($originalString);
echo "Encoded: " . $encodedString . "\n";

// Decode
$decodedString = base64_decode($encodedString);
echo "Decoded: " . $decodedString . "\n";
?>
    

2. OpenSSL Extension

The OpenSSL library in PHP also supports Base64 encoding and decoding through the openssl_encrypt and openssl_decrypt functions.

<?php
$originalString = "test input";

// Encode
$encodedString = base64_encode(openssl_encrypt($originalString, 'AES-128-ECB', 'secret', 0, ''));
echo "Encoded: " . $encodedString . "\n";

// Decode
$decodedString = openssl_decrypt(base64_decode($encodedString), 'AES-128-ECB', 'secret', 0, '');
echo "Decoded: " . $decodedString . "\n";
?>
    

3. Sodium Extension (PHP 7.2 and above)

The Sodium library, starting from PHP 7.2, supports Base64 encoding and decoding.

<?php
$originalString = "test input";

// Encode
$encodedString = sodium_bin2base64($originalString, SODIUM_BASE64_VARIANT_ORIGINAL);
echo "Encoded: " . $encodedString . "\n";

// Decode
$decodedString = sodium_base642bin($encodedString, SODIUM_BASE64_VARIANT_ORIGINAL);
echo "Decoded: " . $decodedString . "\n";
?>
    

4. Laminas (Zend Framework)

Laminas provides utilities for Base64 encoding and decoding through its cryptographic components.

<?php
require 'vendor/autoload.php';

use Laminas\Crypt\BlockCipher;
use Laminas\Crypt\Symmetric\Mcrypt;

// Encode
$blockCipher = BlockCipher::factory('mcrypt', ['algo' => 'aes']);
$blockCipher->setKey('encryptionkey');

$originalString = "test input";
$encrypted = $blockCipher->encrypt($originalString);
$encodedString = base64_encode($encrypted);
echo "Encoded: " . $encodedString . "\n";

// Decode
$decodedString = $blockCipher->decrypt(base64_decode($encodedString));
echo "Decoded: " . $decodedString . "\n";
?>
    

Add the dependency to composer.json:

{
    "require": {
        "laminas/laminas-crypt": "^3.4"
    }
}

    

5. Firebase JWT Library

The Firebase JWT Library supports Base64 encoding and decoding through the encoding and decoding of JWT tokens.

<?php
require 'vendor/autoload.php';

use Firebase\JWT\JWT;

$originalString = "test input";
$key = "example_key";

// Encode
$encodedString = JWT::encode($originalString, $key);
echo "Encoded: " . $encodedString . "\n";

// Decode
$decodedString = JWT::decode($encodedString, $key, array('HS256'));
echo "Decoded: " . json_encode($decodedString) . "\n";
?>
    

Add the dependency to composer.json:

{
    "require": {
        "firebase/php-jwt": "^6.0"
    }
}

    

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Why Use Base64 Encoding?

Base64 encoding is a method of converting binary data into a text format using 64 characters. This encoding scheme is especially useful when you need to transfer or store data over media designed to handle text, such as email or JSON files. Base64 ensures your data remains intact and unmodified during transport.

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Advanced Options

Character Set Selection

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How to Base64 Decode Php Online

Follow these simple steps to Base64 Decode Php Online:

1. Enter your data:Paste your text or binary data into the input field.
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Example of Base64 Decoding

Here’s a quick example. Decoding the Base64 string "SGVsbG8sIFdvcmxkIQ==" yields:

Hello, World!

In this example, the Base64 encoded string "SGVsbG8sIFdvcmxkIQ==" is decoded to "Hello, World!", providing a simple and efficient way to convert Base64 data back to its original text format.