Entry

How do I create a string with A-Z in it. Like "ABC....XYZ"? Like $x=[A-Z]; or something?

Jul 3rd, 2003 07:13
krys pryr, Philip Olson, Ben Udall, Phil S.,

There is no shortcut like that in PHP so either define it yourself:
  $letters = 'abcdefghijklmnopqrstuvwxyz';
Or do it dynamically, here's one way:
  $letter = 'a'; $i = 0;
  while ($i++ < 26) {
      print $letter++;
  }
Or with PHP 4.1.0+, range() also takes on letters although this 
will create an array, not a string (see also implode()):
  $letters = range('a','z');
Also, chr() and ord() are available to play with:
  $x = "";
  for ($i = ord('a'); $i <= ord('z'); ++$i) {
    $x .= char($i);
  }
One thing that _may_ be helpful is to understand the following:
  $str = 'abc';
  print $str{0}; // a
  print $str{2}; // c
Even easier is this:
 // lowercase
 for ($i = 99; $i <= 122; $i++) {
     $alphabet[] = chr($i);
 }
//uppercase
 for ($i = 65; $i <= 90; $i++) {
     $alphabet[] = chr($i);
 }