Code:
<?php
for( $char = "A"; strlen($char) == 1; $char++) {
echo "<a href=\"deinedatei.php?sel=$char\">$char</a> | ";
}
for( $char = "0"; strlen($char) == 1; $char++) {
echo "<a href=\"deinedatei.php?sel=$char\">$char</a>";
if( $char != "9" ) {
echo " | ";
}
}
?>