base64_decode in php code example

Example 1: base64 decode in php

base64_decode('base64');

Example 2: php detect base64 encoding

function is_base64_encoded($data)
{
    if (preg_match('%^[a-zA-Z0-9/+]*={0,2}$%', $data)) {
       return TRUE;
    } else {
       return FALSE;
    }
};

is_base64_encoded("iash21iawhdj98UH3"); // true
is_base64_encoded("#iu3498r"); // false
is_base64_encoded("asiudfh9w=8uihf"); // false
is_base64_encoded("a398UIhnj43f/1!+sadfh3w84hduihhjw=="); // false

Example 3: how do decode base64 php

base64_decode('base64-string-goes-here');

Example 4: base64 decode php

<?php 
  
// Program to illustrate base64_decode() 
// function 
$str = 'R0ZHLCBBIGNvbXB1dGVyIFNjaWVuY2UgUG9ydGFsIEZvciBHZWVrcw'; 
echo base64_decode($str). "\n"; 
  
$str = 'MQ=='; 
echo base64_decode($str). "\n"; 
?>

Example 5: base64 decode php

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