I'm using the following function to decode an encoded session string from a db (function found on php.net). I'm recieving a warning (not fatal) "Notice: Undefined offset: 10 in c:\_localhost . . ." on the same line number of where preg_split() is.

Apache/1.3.33 (Win32) PHP/4.3.10

PHP Code:

function unserializesession($data) {
  $vars = preg_split('/([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\|/', $data, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
  for($i=0; $vars[$i]; $i++) {
    $result[$vars[$i++]] = unserialize($vars[$i]);    
  }
  return $result;
} 


its good practice to debug scripts that still run but throw errors, kudos.

you dont need to write

PHP Code:

$result[$vars[$i++]]; 


just write

PHP Code:

$result[$vars[]]; 


the offset notice is being thrown because there are keys being used in " unserialize($vars[$i]); " that dont exist in that array