- urldecode: documentation ( source)
- mb_strtolower: documentation ( source)
- sprintf: documentation ( source)
<?php
for($i = 0xC4-3; $i <= 0xC4+3; ++$i){
for($k = 0; $k <= 0xff; ++$k){
$z = "%".sprintf("%02x", $i)."%".sprintf("%02x", $k);
$x = mb_strtolower(urldecode($z));
echo $z." => ".$x."\n";
if($x=="i"){
echo $z." => ".$x." - find\n";
}
}
}