a href value does not pass to next php link

Question

i am using datatables with iframe (iframe parent page -> icontent.php -> var.php) populating the table works fine but i cannot seem to pass the variable to the other page (var.php) , I have this code on my php page (icontent.php)

<?php 
   while ($row=$ result->fetch_row()){ 
       $array = array($row[0], $row[1]); 
       $arraytemp = serialize($array); 
?>
<tr>
  <td>
    <?=$row[0]?>
  </td>
  <td>
    <?php 
        echo "<a href=\"../variety.php?array=$ arraytemp\ ">$row[1]</a>";
    ?>
  </td>
  <td>
    <?=$row[2]?>
  </td>
  <td>
    <?php 
        if(!is_null($row[3]))echo $row[3]; else echo 0;
    ?>
  </td>

  <?php 
      echo " <td><a href=\"updateprice.html\ " class=\"btn btn-outline btn-primary btn-sm btn-block btn-block\ ">Update Market Price</a>
                                            <a href=\"updatebatchspoilage.html\ " class=\"btn btn-outline btn-primary btn-sm btn-block btn-block\ ">Manage Spoilage</a></td>"; 
  ?>
  <tr>
<?php } ?>

but once i click the row link on the table i get this error "Notice: Undefined index: array in C:\\xampp\\htdocs\\introse\\views\\variety.php on line 46"

with this code on the other page ( var.php )

<?php 
   session_start(); 
   $tarray=$ _GET[ 'array']; 
   $tarray=unserialize($tarray); 
   echo $array[0]; 
?>

Answer 1

See this line right here:

echo "<a href=\"../variety.php?array=$ arraytemp\ ">$row[1]</a>";

I don't think you need that space after the $ .

Also, you got another one here:

$tarray=$ _GET[ 'array']; 

Answer 2

 <?php session_start(); $tarray=$ _GET[ 'array']; $tarray=unserialize($tarray); echo $tarray[0]; ?>