- base64_decode: documentation ( source)
<?php
$mystring = "aHR0cDovLzE5Mi4xNjguNTAuMjM1L3Rlc3QvbG1zX3JlYWRfcGFyYW1fYW5kX2xhdW5jaC5waHA= ";
echo base64_decode($mystring) . "\n\n";
$mystring2 = "http%3A%2F%2F192%2E168%2E50%2E235%2Ftest%2Flms%5Fread%5Fparam%5Fand%5Flaunch%2Ephp";
echo url_decode($mystring2);