Function validate_date

Validation of a date which checks if the string passed is a valid date. Allowed formats

d-m-y 31-12-2014 separators can be a period, dash, forward slash, but not allow space
m-d-y 12-31-2014 separators can be a period, dash, forward slash, but not allow space
y-m-d 2014-12-31 separators can be a period, dash, forward slash, but not allow space

Package: PHPLucidFrame\Core
Copyright: Copyright (c), PHPLucidFrame.
License: MIT License This source file is subject to the MIT license that is bundled with this source code in the file LICENSE
Author: Sithu sithu@phplucidframe.com
Located at helpers/validation_helper.php

Parameters summary
`string`	`$value`	The date string being checked
`string`	`$format = 'y-m-d'`	The date format to be validated against. Default is y-m-d for 2014-12-31

Return value summary
`boolean`	TRUE on success; FALSE on failure