strtotime problem!

[eluser]newbie boy[/eluser]
sir gradstudent, i tried your solution before but it never worked out.
coz' this gives somewhat a validation to the field that must have a complete input.
i do appreciate your help.

but . . .

some user just wants to give either the only the day, or the month or the year of their birthday
nor the combination of the said data mostly only the day and the month but not all...

but still i want to display it without making a function for a user to use if he wants to hide the day, the month, mostly the year
or either the combination of the two data.

so if he do not want to show any of the data of his birthday, he'll just not have to input any...