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freekrai/is_base64.php

Last active August 29, 2015 14:05
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is_base64.php
<?php
/*
Checks if a string is base65 encoded or not already...
*/
function is_base64($str) {
if (!preg_match('~[^0-9a-zA-Z+/=]~', $str)) {
$check = str_split(base64_decode($str));
$x = 0;
foreach ($check as $char) if (ord($char) > 126) $x++;
if ($x/count($check)*100 < 30) return true;
}
return false;
}
?>
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