PHP: Loops through ASCII characters to display alphabet, useful for alphabetic filtering links. eg: A | B | C | D ...

get_alphabet.php

<?php
function get_alphabet()
{
  $alphabet = '';
  
  // Loop through ASCII characters until reaching 90
  for ($i=65; $i<=90; $i++) {  
     
    // store the character
    $letter = chr($i);
 
    // build alphabetical link
    $alphabet .= '<a title="filter results by letter '.$letter.'" href="/business/'.$letter.'"> ';
    $alphabet .= $letter;
    $alphabet .= '</a> | '; 
  }
  
  return $alphabet;
}

// print links
echo get_alphabet();

`<?php
function d(){
for($i="\v";$i<"o";$i++){
echo ord($i)-ord("\n")."\t";
}
}

d();
?>`
I have tried above code for ascii char's iterate in for loop. for print 1 - 100 decimal value. But i can not get it. Can you help ..