display the value error

[karthickRAJKUMAR]

<?php
     $counter= array();
     for ($n=1;$n<=3;$n++)
             {
 
            echo $counter[$n];
        }
 
   ?>

it will not display 1,2,3 why?or i want display

[ak1dnar]

<?php
$counter= array(); // This is a Empty Array
array_push($counter,"Some_value"); // You have to Assign values To Array LIke This
array_push($counter,"Another_value");
array_push($counter,"One_More_value");
// Then You can Print "0"th,"1"st,"2" nd elements of the Array Like this
for ($n=0;$n<=3;$n++)
{
echo $counter[$n];
}
echo "<br>";
// if you want to just print 1,2,3 No need of array this is enough
 
for ($n=1;$n<=3;$n++)
{
echo $n.',';
}
?>
 

Please Use the CODE tags in future.Thanks.
[code=php]
..your codes goes here
[ /code]

[Atli]

<?php
$counter= array(); // This is a Empty Array
array_push($counter,"Some_value"); // You have to Assign values To Array LIke This
array_push($counter,"Another_value");
array_push($counter,"One_More_value");
?>
 

Hi.

That can also be accomplished like this: (my personal preference)

$counter = array();
$counter[] = "First";
$counter[] = "Second";
$counter[] = "Third";
 

And even like this:

$counter = array(
  0 => "First",
  1 => "Second",
  2 => "Third"
);
 

These three methods all do the same thing, just a matter of preference which one you use.

The original problem, as I am sure you have gathered after ajaxrand's post, is that the array, $counter, has no elements. Thus, calling elements, no matter at what index, will not yield any results and should print a "Notice: Undefined index...".

[pbmods]

Hi.

That can also be accomplished like this: (my personal preference)

$counter = array();
$counter[] = "First";
$counter[] = "Second";
$counter[] = "Third";
 

And even like this:

$counter = array(
  0 => "First",
  1 => "Second",
  2 => "Third"
);
 

These three methods all do the same thing, just a matter of preference which one you use.

Note that the last method is actually the fastest because you are only executing a single statement.

And for maximum efficiency:

$counter =
    array
    (
        'First',
        'Second',
        'Third'
    );