function to calculate 'date of birth' does not work

[andreea115]

Hello again everyone.

sorry to bother you again with another problem. but i am have a lot of trouble trying to work out the MK () time function.

i have a code that determine the age of a person , the code works well. however when i tried to put the code into a function it stopped working and returns Zero date of birth .

it might be easier if i show you what i mean,

//this is the function that determines the age 



$ageTime = mktime(0, 0, 0, 9, 9, 1919); // Get the person's birthday //timestamp

$t = time(); // Store current time for consistency
	$age = ($ageTime < 0) ? ( $t + ($ageTime * -1) ) : $t - $ageTime;
	$year = 60 * 60 * 24 * 365;
	$ageYears = $age / $year;

	echo 'You are ' . floor($ageYears) . ' years old.';

//the script above works well enough. it is not enteirly accurate, i.e misses the // //days of a leap year. it is however accurate enough for my purposes.
//the problem however is that when i place this script into a fuction it no longer //works   




	function bithday (  $time  )

	  {


	$ageTime = mktime(   $time  ); // Get the person's birthday timestamp


	$t = time(); // Store current time for consistency
		$age = ($ageTime < 0) ? ( $t + ($ageTime * -1) ) : $t - $ageTime;
		$year = 60 * 60 * 24 * 365;
		$ageYears = $age / $year;

		   $birthdate  = floor($ageYears) ;

		   return $birthdate; 

		}


echo bithday ( 0, 0, 0,  9, 9, 1975   );

//i placed it into a function so that i could be used within a website script 

[bradgrafelman]

Your function birthday() expects only one parameter, and yet you're passing it 6 parameters.

If you want to use mktime(), then pass birthday() the returned value of that function rather than a bunch of parameters it doesn't use. Otherwise, handle the multiple parameters inside the function.