can't access all array values

kark_1999

I've been staring at this for 6+ hours. Can someone explain this to me?

print_r(array_values($listingziparray));

will result in.....

Array (
[0] => Array ( [ID] => 358 [zipTwo] => 20781 [distance] => 1.3 )
[1] => Array ( [ID] => 294 [zipTwo] => 20002 [distance] => 4.1 )
[2] => Array ( [ID] => 59 [zipTwo] => 20008 [distance] => 7.1 )
[3] => Array ( [ID] => 396 [zipTwo] => 20910 [distance] => 7.2 )
[4] => Array ( [ID] => 288 [zipTwo] => 20015 [distance] => 7.4 )
[5] => Array ( [ID] => 226 [zipTwo] => 22209 [distance] => 8.6 )

[6] => Array ( [ID] => 218 [zipTwo] => 20016 [distance] => 8.9 ) )

The very next line...
echo "<script>alert('listingziparray[5]=" . $listingziparray[5]['ID'] . "')</script>";

gives me a popup with the value "218",
which really should correspond with the $listingziparray[6]['ID'] value.

Now the very next line...
echo "<script>alert('listingziparray[6]=" . $listingziparray[6]['ID'] . "')</script>";

gives me a popup with a blank value.

So, I'm really stumped. I know the array has 7 elements or values, because of the above call to array_values. And, if I popup the value resulting from...
$numOfListings = count($listingziparray);

it returns a 7.

What has happened that I can't access all of the array?

Thanks!

kark_1999

more info...

I added this code:

echo "<script>alert('listingziparray[0]=" . $listingziparray[0]['ID'] . "')</script>";
echo "<script>alert('listingziparray[1]=" . $listingziparray[1]['ID'] . "')</script>";
echo "<script>alert('listingziparray[2]=" . $listingziparray[2]['ID'] . "')</script>";
echo "<script>alert('listingziparray[3]=" . $listingziparray[3]['ID'] . "')</script>";
echo "<script>alert('listingziparray[4]=" . $listingziparray[4]['ID'] . "')</script>";
echo "<script>alert('listingziparray[5]=" . $listingziparray[5]['ID'] . "')</script>";

I've discovered that the only one it gets all screwed up somehow around
$listingziparray[2]['ID'] actually returns value for $listingziparray[3]['ID'] (396 rather than 59) , and it progresses from there. By the time I get to $listingziparray[6]['ID'] there is nothing there.

laserlight

array_values() returns all the values from the input array and indexes numerically the array.

Could there be confusion between a numerically indexed array, and an associative array?

kark_1999

I don't understand this at all.

kark_1999

I'm going to be hung if I can't find out what is going on.

Here is another piece of info:

print_r(array_keys($listingziparray));

results in....

Array ( [0] => 0 [1] => 1 [2] => [3] => 2 [4] => 3 [5] => 4 [6] => 5 )

hah - it's #2 again that is the problem somehow. Any ideas?

NOTE: This seems to happen no matter what size the array is. If i have 29 elements, somewhere in there (not necessarily element 2) will be skipped if referring to it. I'll only be able to grab 28 values.

laserlight

Do a
print_r($listingziparray);
for cross reference

kark_1999

Originally posted by laserlight
Do a
print_r($listingziparray);
for cross reference

Thanks.

However, this is getting more strange.

if I do a print_r($listingziparray); i get the following....

Array ( 
[0] => Array ( [ID] => 358 [zipTwo] => 20781 [distance] => 1.3 ) 
[1] => Array ( [ID] => 294 [zipTwo] => 20002 [distance] => 4.1 ) 
[] => Array ( [ID] => 59 [zipTwo] => 20008 [distance] => 7.1 ) 
[2] => Array ( [ID] => 396 [zipTwo] => 20910 [distance] => 7.2 ) 
[3] => Array ( [ID] => 288 [zipTwo] => 20015 [distance] => 7.4 ) 
[4] => Array ( [ID] => 226 [zipTwo] => 22209 [distance] => 8.6 ) 
[5] => Array ( [ID] => 218 [zipTwo] => 20016 [distance] => 8.9 ) )

What is that that [] in between [1] and [2]? How can that be? How can I reference it to return the value? That's the value i can't get to.

Any suggestions?
</pulling my hair out in large clumps>

tsinka

Where does this array come from (the code or HTML form that creates that array)

Thomas

laserlight

The array index is a null value, or a blank string.

You can still access the element using a foreach loop on the array.

kark_1999

Originally posted by laserlight
The array index is a null value, or a blank string.

You can still access the element using a foreach loop on the array.

Thanks for your help!

I was able to identify that creation of the array did have a null value in there.

Very cool. you saved my sanity.