Undefined Offset :1 and 2

Question

I am using explode function to insert a text pipe delimited file in sql table .

The error is :

Notice: Undefined offset: 1
Notice: Undefined offset: 2 
Both on line 34

ie.

 $list=explode("|",$line);
 $sql="INSERT INTO tb (tb1,tb2,tb3) VALUES('$list[0]','$list[1]','$list[2]')";

Please help.

  while (!feof($handler)) // Loop til end of file.
  {
       $line= fgets($handler);     // Read a line
       $list=explode("|",$line);
       $sql="INSERT INTO tb (tb1,tb2,tb3) VALUES('$list[0]','$list[1]','$list[2]')";
       $result= mysql_query($sql,$conn);             
  }

Answer 1

If you do not care about values you could do this

$list=explode("|", $line) + array('', '', '');

You array would be always has 3 elements.