trim string

Checks that a password has a minimum of 6 characters, at least 1 uppercase letter, 1 lowercase letter, and 1 number with no spaces.

Email address, most used cases

Attempts to mimic Google search box behavior, returning an array with the separated search strings (that keep the +/- indicator for following operations)

Allows phone numbers with optional country code, optional special characters and whitespace

Safe Password that allow only with a number, a lowercase, a uppercase, and a special character

Validates IPv4 IP Address

general purpose HTTP URL regex

Matches text within quotes (", ') and escapes the charecters.

Besides leap year handling, this takes care of date validation in the yy-mm-dd format.

Matches case insensitive first name, optional unlimited number of middle names and last name separated with space format. Replaced \w with explicit char range for Turkish support. (Äž accepted as first char not to over complex)

Verifies Number is a negative/positive number. Number may be a decimal, but if it is, it requires at least one number before and after the decimal place. Decimal numbers may also be negative or positive. Only 1 decimal place is allowed.

The secret of the Twitterverse.