$number = 3; if ($number >= 1 && $number <= 26) { $asciiValue = $number + 64; $letter = chr($asciiValue); echo $letter; } else { echo "Number out of range for alphabet letters"; } output C
$number = 3; if ($number >= 1 && $number <= 26) { $asciiValue = $number + 64; $letter = chr($asciiValue); echo $letter; } else { echo "Number out of range for alphabet letters"; } output C