how i use unique array in for loop

Question

I want to use unique array in for loop. Please see my code.

Array ( [0] => Pritesh [1] => Pritesh [2] => Nilesh )

Now i have used "UNIQUE" function for fetch unique value

 Array ( [0] => Pritesh [2] => Nilesh ) 

But Now issue is when i use for loop for that like

for($p = 0; $p < count($unique); $p++)
    {   echo $uniques;
        echo  '<option value="'.$unique[$p].'">'.$unique[$p].'</option>';
    }   

So second value showing blank because array count is 2 and Key is 0,2 .

How i use this.

Answer 1

foreach($uniques as $key => $unique) {
  echo '<option value="'.$unique.'">'.$unique.'</option>';
}

As stated in the comment, you do not need to assign a variable for the key, if you don't need it. (I just used is as a handy reference). So you can simply do this:

foreach($uniques as $unique) {
  echo '<option value="'.$unique.'">'.$unique.'</option>';
}

Answer 2

Do like this before you pass into the loop..

$yourarray = array_values(array_unique($repeated_values_array));

Now make use of $yourarray in the for loop.

Answer 3

Please, read the manual. array_unique doesn't reset the array keys. Besides, a for loop is all well and good, but foreach is a language construct better suited to deal with arrays (and objects, for that matter).
That said, the fastest way to reset the array keys after array_unique has been applied is to sort the array:

$a = array( 'Pritesh','Pritesh','Nilesh' );
$b = array_unique($a);
sort($b);
var_dump($b);

This results in:

array(2) {
  [0]=>
  string(6) "Nilesh"
  [1]=>
  string(7) "Pritesh"
}

Which is suitable for both for and foreach.

Edit:
As is often the case in programming TMTOWTDI (There's more than one way to do it). Here's a couple of approaches, ranging from valid to absurd:

Quick:

foreach($uniques as $unique) echo '<option value="', $unique, '">', $unique,'</option>';

Yes those are comma's, comma's + echo is actually faster (~20-30%) than concatenation
When to use: whenever you feel like it, it doesn't change the $uniques array (so it's still inconcistently indexed), but it's quick and easy to read.

Fix $uniques indexing:

sort($uniques);
foreach($uniques as $unique) echo '';//same deal

The difference with the previous version is that you can replace foreach with for here, too, and that the $uniques array will be properly indexed again. The order of the elements may have changed.
If the order of the elements is important, and you want a neatly indexed array, use:

$uniques = array_values($uniques);//as Shankar Damodaran suggested

Use when your use-case fits the very specific and unlikely scenario described above.
or, and things are getting absurd from here on end:

function keepOrder($a, $b)
{
    return 0;
}
usort($uniques, 'keepOrder);

Use: never

Since we are taking it rather far in terms of over-engineering a solution, let's take it to the extend where the solution becomes a problem all over again (Warning, the following code may cause your eyes to bleed):

//get the highest key in array, add 1
$max = max(array_keys($uniques)) + 1;
for($i=0;$i<$max;++$i) if (isset($uniques[$i])) echo $unique;

I've deliberately made the code above harder to read, to avoid anyone using it.
When to use: use when you are either clinically insane, or want to see a co-worker being taken away in a straitjacket, shouting "The horror, the horror".
Seriously: don't use it.

Answer 4

Use the foreach function of PHP

 foreach($unique as $val)
 {   
      echo $val;
      echo  '<option value="'.$val.'">'.$val.'</option>';
 }  

Answer 5

Use foreach instead of for loop

if you need your key as well, do this:

foreach ($unique as $key=>$value)

where $key will be the array key.

Answer 6

It seems that what you need is called "rebase array keys". As discussed in this post: Rebase array keys

So use

$array = array_values($array);