String randomizer

$rand = new Randomizr;

Use number() to get random string containing only 0 to 9:

$result = $rand->number(10);

Use alphabet() to get random string containing only a to z (both uppercase and lowercase):

$result = $rand->alphabet(10);

Use alphanumeric() to get random string containing only a to z (both uppercase and lowercase) and 0 to 9:

$result = $rand->alphanumeric(10);

Use hexadecimal() to get random string containing only hexadecimal number (0 to f):

$result = $rand->hexadecimal(10);

Use rand() to random a string with arbitary character set and length:

$result = $rand->rand("abc", 10);  // this will return a string containing either a or b or c with length of 10