Returns the numeric value of the first character of EXPR. If EXPR is an empty string, returns 0. If EXPR is omitted, uses $_.
When utf8 is properly set
use strict;
use warnings;
use 5.010;
use utf8;
say ord('a'); # 97
say ord('b'); # 98
say ord('A'); # 65
say ord('='); # 61
say ord('abc'); # 97
say ord('ű'); # 369 (Hungarian)
say ord('ñ'); # 241 (Spanish)
say ord('א'); # 1488 (Hebrew Aleph)
say ord('אב'); # 1488 (Hebrew Aleph and Bet)
say ord('ב'); # 1489 (Hebrew Bet)
say ord('٣'); # 1635 (Arabic 3)
When utf8 is not set
use strict;
use warnings;
use 5.010;
say ord('a'); # 97
say ord('b'); # 98
say ord('A'); # 65
say ord('='); # 61
say ord('abc'); # 97
say ord('ű'); # 197 (Hungarian)
say ord('ñ'); # 195 (Spanish)
say ord('א'); # 215 (Hebrew Aleph)
say ord('אב'); # 215 (Hebrew Aleph and Bet)
say ord('ב'); # 215 (Hebrew Bet)
say ord('٣'); # 217 (Arabic 3)
See also the chr function as the opposite of ord.
