chr()

$string="Let us print a variable ".chr(36)."my_var"; 

Let us print a variable $my_var 

echo "Let us print hash ".chr(35); //Output  Let us print hash #
echo " Less than ".chr(60);  // Output Less than <

<?Php
$i=0;
echo "<table><tr><td>";
for($i==0;$i<=127;$i++){
echo " chr($i) = ".chr($i)."<br>"; 
if($i%20 == 0 and $i>19){echo "</td><td valign=top>";}
}
echo "</td></table>";
?>