Created
September 18, 2012 10:17
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Verify a date string is ISO 8601 formatted in PHP
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| // Regex from http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/ | |
| function assertISO8601Date($dateStr) { | |
| if (preg_match('/^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/', $dateStr) > 0) { | |
| return TRUE; | |
| } else { | |
| return FALSE; | |
| } | |
| } |
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