[SOLVED] String seperation and assignment

[EchoFool]

Hey

 

I have a string like this:

 

$string = '12,14,37,124,5,77,35,74';

 

Now each number represents what the result was for each day. So 12 was yesterday, 14 was day before than and so on.

 

What im trying to do is make a script then to pick a day of the list and display that day... so say i wanted to display the result for 3 days ago...

 

That would be 37.

 

How would i do it in a while loop.. to cycle through it and then only echo the result when $var in the count of the while loop equalled the $day = 3... sumin like this

 

<?php
$getday = 3;
$var = 1;
While ( some thing  ) {
If($var == $getday){
Echo $result;
}
$var = $var + 1;
}
?>

 

How ever if there is a more efficient way id be interested to know your view to it.. the amount of numbers in the list could be hundreads just to add.

 

[Mark Baker]

$string = '12,14,37,124,5,77,35,74';
$daysAgo = 3;

$result = getDaysAgo($string,$daysAgo);
echo $result;

function getDaysAgo($str,$days) {
   $strArray = explode(",",$str);
   $days--;
   return $strArray[$days];
}

[taquitosensei]

This should do it.

$string = '12,14,37,124,5,77,35,74';
$array=explode(",", $string); 
$day=3; 
$number=$string($day-1); // arrays start at 0 so day 1 would be 0, day 2  would be 1, etc 

 

[EchoFool]

Thanks guys!