access variable outside loop

bastienvans

Hi,

I am trying to output the total value of $i outside the loop. What's the best way to go about this?


echo $i; // need to echo this, in this case, value would be '3'

$id = array("12","34","645");

foreach($id as $items)

{

echo $items.'<br />';
$i++;
}

Thank you!

dagon

count() on the array would be esier

bastienvans

I can't use count in my case. Is there any other way?

I will post my code if it is of any help.

Thanks

EDIT: I can't use count because some of the values in my array should not be included in my count.

steamPunk

you should just be able to echo $i after the loop

maybe you could initialise $i=0; before the loop

halojoy

What would $i begin and end with,
in the case you posted?

If it begin with 3, it would be 6 at the end of loop

bastienvans

$i should be 0, I suppose.

I want $i to be equal to '3' when it's done looping.



echo 'Total items in array: '.$i;

$id = array("12","34","645");

foreach($id as $items)

{

echo $items.'<br />';
$i++;
}

bradgrafelman

Initialize it to 0 before the loop, and then it should work fine.

In your first post, you tried to echo $i before anything had been done with it. Can't put the cart in front of the horse. 😉

dagon

im guessing its just a display issue were you want the count to appear before the looped output.

so something like this would work


$id = array("12","34","645");

$out='';

foreach($id as $items)

{

$out.= $items.'<br />';
$i++;
} 

echo 'Total items in array: '.$i;
echo $out;

bastienvans

Dragon, that is exactly what I am trying to do.

I have while with a mysql_query in my foreach getting values from my db, include divs, etc. I need to print the total count at the top of everything.

I will try your suggestion and report back, thanks.

bastienvans

$query1 = "SELECT DISTINCT propertyID FROM listings";
$result1 = mysql_query($query1) or die(mysql_error()); 
	while ($row = mysql_fetch_array($result1))
		{
			$propertyID = array($row['propertyID']);
				foreach($propertyID as $ID)
					{ 
						$query = "SELECT * FROM calendar WHERE date BETWEEN '$start' AND '$end' AND propertyID=$ID";
						$result = mysql_query($query) or die(mysql_error()); 
						$numrows = mysql_num_rows($result);
							if($numrows == 0)
								{

								echo 'print '.$ID.'<br />';
							}
				}
	}

This is a simplified version of my code. I only want to count the items if they match the "if($numrows ==0)" condition.

dagon

its often best to do all processing first and assign any output to a var(s) to be outputted at the end.

bastienvans

I am not getting anywhere. I have tried using sessions, but I have to refresh the page to update the count.

🙁

dagon

i don't know why you would uses sessions unless you want the output on another page, in the while loop assign the output to a var rather than echoing it as i showed, and add your $i loop counter