调用preg_split后保留键

Question

I'm using preg_match for performing a regular expression match, but before using it I declared my array with specific keys as follows:

$record = array ( "title"         => '',
                  "review"        => '',
                  "publisher"     => '',
                );

and here I call the function

$record = preg_split( "/(\s\|\s)|(\s\|)/", $data, 4 );

If I try to use the array with

echo $record['title'];

I got the following message error:

PHP Notice:  Undefined index: title

Is there a way to preserve my keys?