php - PDO::FETCH_COLUMN fetches nothing -


the following code gives me array $a containing description. 

$stmt = $dbh->prepare("select description, id     money_items"); $stmt->execute(); $a = $stmt->fetchall(pdo::fetch_column, 0); $id = $stmt->fetchall(pdo::fetch_column, 1);

but $id array comes out blank.

   array    (    )

if remove $a = $stmt->fetchall(pdo::fetch_column, 0); line, $id array comes out fine. allowed fetch 1 column results?

what looking 

$results = $stmt->fetchall(pdo::fetch_assoc);

this fetch columns , rows array -

http://wiki.hashphp.org/pdo_tutorial_for_mysql_developers

to answer actual question though, guess fetchall function called on statement runs through rows, internal pointer in array @ end when fetch second column.


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