Regular Expression (Regex) Test Tool

Test your regular expression here

Regular Expression for "Visa credit card format"

Pattern : e.g. /^([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})$/

Subject : e.g. 2007-01-12

Title : (optional) e.g. Date in yyyy-mm-dd format

Note: The regular expression validation in this page uses PHP's preg_match() to check the correctness of the pattern.

Example