Character Codes in PHP
Find out the character codes for 'a', 'b',
'c', space.
Study the ASCII table. Determine the boundaries within which the letters of the English alphabet are located.
Output the character with code 33 to the screen.
Assign to the variable $str a random
character - a capital letter of the Latin alphabet.
To do this, use the ASCII table to determine
which integers correspond to the capital letters
of the Latin alphabet.
Assign to the variable $str a random
string $len characters long, consisting of lowercase
letters of the Latin alphabet.
Given a letter of the English alphabet. Find out if it is lowercase or uppercase.
