dates -coding

[vkwd7]

I am a newbie.I want to write a program for retirees on my web site in php.I am in a fix about certain date issues and seek help.for example we have 3 categories of pensioners (1) retired after 1-11-92 (2) after 1-11-97 (3) retred after 1-11-2002. they have different rates of allowances.I use '$DA_rate' for this.How to reflect say 1-11-1992 as a variabe and assign to it the value "1-11-1992"I tried using $dor = date("1-11-1992") and for others date of retriements, but the results are not as desired.

I am enclosing a code also.I feel $dor= date("1/11/1997") is not the correct assignment because date() always gives current date.I need help.

thanks.

if($dor >= date("1/11/1997"))
{$DA_rate=(89.28/100);
}
if($dor >= date("1/11/1992"))
{$DA_rate=(117.78/100);
	}
if($dor >= date("1/11/2002"))
{$DA_rate=(39.78/100);}
if($dor < date("1/11/1992"))
{$DA_rate=(430.81/100);

		}
$basic_pension=$Payable_basic_pension*3/2;


        $DA=$basic_pension*$DA_rate;

	function Gross_Pension ($Payable_basic_pension,$basic_pension,$DA,
$dor)
{$Gross_Pension=$Payable_basic_pension+$DA;

	return $Gross_Pension;

        echo"<b>My gross pension comes to :" ." " .($Gross_Pension) .(Gross_Pension($Payable_basic_pension,$basic_pension,$DA,$dor)) ."</b>";}


	      
	?>
        
</BODY>
</HTML>

[Barand]

when using date time functions use ISO date format (2002-11-01).

 

this also allows direct comparisons of date values