Remove Empty Key form Array

Anon

Once again I am lacking a peice of knowledge which would seem elementary.. But I still don't know it..

So please help.

I have an array where I have populated some values to a straight up number counting key. I loop through the array and unset() any values if I am "deleting" the item. But in the array, it leaves the key there with just and empty value. How can I go back and clean the array out of the empty keys to either just remove the empty key, or to relist the entire array where all the items slide up a key to remove the empty key.

any help appreciated,
-jeff

metin

What do you mean by "unset() any values"?
Unset is used on the variable or if you like -
on the array key itself, like:
unset($my_array[key]);

Anon

I am using:
unset($my_array[key]);

to remove the associated value, but it leaves an empty key in the array.

I want to remove the empty key.

Anon

I have an array called $array.

In the $array i have the following:
0 => Value1
1 => Value2
2 => Value3
3 => Value4
4 => Value5

I then want to remove Value3 from the array.
I do unset($array[2]) and its gone

But, there is still a key of 2 in the array.

I wanted to know how to either remove the key, or to move the Value4 to key 2 move Value 5 to key 3 and remove the last key.

metin

Try the following (it works for me):
<?php
$array[0] = 'Value1';
$array[1] = 'Value2';
$array[2] = 'Value3';
$array[3] = 'Value4';
$array[4] = 'Value5';

Echo "Before unsetting the array:<br>";
while (list ($key, $value) = each ($array))
{
echo "'$key' => '$value' <br>\n";
}

Echo " ... and after unsetting the array:<br>";

unset($array[2]);
reset($array);
while (list ($key, $value) = each ($array))
{
echo "'$key' => '$value' <br>\n";
}
?>