🚀 go-pugleaf

Here's the server side check script I use in the validate and forward technique. There are javascript examples on the web for client side checking.



 
		// 
		// now test date for validity 
		// 
		function cvdate($s) {  
			//this function takes a "human" date and converts it into a UNIX timestamp, zero if error. 
			//what is the delimiting character? (support space, slash, dash) 
			$delimiter = ""; 
			if (strpos($s,"-")>0) $delimiter="-"; 
			if (strpos($s,"/")>0) $delimiter="/"; 
			if (strpos($s," ")>0) $delimiter=" "; 
			if ($delimiter=="") return 0; 
			//chop it up 
			$p1=strpos($s,$delimiter); 
			$p2=strpos($s,$delimiter,$p1+1); 
			$x=substr($s,0,$p1); 
			$y=substr($s,$p1+1,$p2-$p1); 
			$z=substr($s,$p2+1); 
			//echo("
Debug1--->$x/$y/$z
"); 
			//the last value is always the year, so check it for 2- to 4-digit convertion 
			if (intval($z)<100){  				if (intval($z)>69) $z=strval(1900+intval($z)); else $z=strval(2000+intval($z)); 
			} 
			//intelligently select which converter to use 
			//(default is M/D/Y, but if the month is "spelled out" then the format is D/M/Y 
				return cvdate_numeric($x,$y,$z); 
		}		 
		//just a helper function 
		function cvdate_numeric($m,$d,$y) { 
			$d2=0; $m2=0; $y2=0; 
			$d2=intval($d); 
			$m2=intval($m); 
			$y2=intval($y); 
			//check for errors! 
			if (($d2==0)||($m2==0)||($y2==0)) return 0; 
			$dateTest=mktime(0,0,0,$m2,$d2,$y2); 
			if(!$dateTest){ 
				// not a valid date 
				return FALSE; 
			} else { 
				// return in mysqlformat YYYYMMDD 
				return date("Ymd",$dateTest);					 
			} 
		} 
		$_POST['censusdate(1)']=cvdate($_POST['censusdate(1)']);	 
		if($_POST['censusdate(1)']){ 
			// date ok 
			$successMsg.="  The date check passed"; 
			//echo "

".$successMsg."
Final value of censusdate(1)---->". $_POST['censusdate(1)'] ."

";
		} else {
			// date fails
			$errorMsg="ERROR! Date was invalid. Please reenter.";
		}