Edit: checkdate

Function:	checkdate View checkdate Edit checkdate Edit code Edit tests Edit benchmark View latest code Edit latest code Benchmark checkdate Comment on checkdate Comment on the latest code View revisions View versions View contributors View dependencies View comments View links Download production code Download development code View the PHP docs View phpjs.org View phpjs.org raw code
Description:	Returns true(1) if it is a valid date in gregorian calendar.

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Code:	function checkdate (m, d, y) { // http://jsphp.co/jsphp/fn/view/checkdate // + original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + improved by: Pyerre // + improved by: Theriault // * example 1: checkdate(12, 31, 2000); // * returns 1: true // * example 2: checkdate(2, 29, 2001); // * returns 2: false // * example 3: checkdate(3, 31, 2008); // * returns 3: true // * example 4: checkdate(1, 390, 2000); // * returns 4: false return m > 0 && m < 13 && y > 0 && y < 32768 && d > 0 && d <= (new Date(y, m, 0)).getDate(); }
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