Question

I have the following PHP code:

$testMessage = "TESTMESSAGE";

$db = new SQLite3('messages.sq3');
$db->exec('CREATE TABLE messages(id INTEGER PRIMARY KEY, message CHAR(255));');
$db->exec("INSERT INTO messages (message) VALUES ('$testMessage');");

$results = $db->query('SELECT * FROM messages ORDER BY id DESC LIMIT 5');

while ($row = $results->fetchArray()) {
    print_r($row);
}

The resulting print_r:

Array ( [0] => 1 [id] => 1 [1] => TESTMESSAGE [message] => TESTMESSAGE )

Why is this data duplicated? Is this just the way the array is presented or are there really two copies of TESTMESSAGE string? Inspecting the sqlite file, I only see one actually stored there. I am trying to serialize the output via JSON and this duplication is carrying through to the serialization.

Answer 1

The default is to have the data with both numeric and string keys, merged in the same array.

You need to use $results->fetchArray(SQLITE3_NUM) or $results->fetchArray(SQLITE3_ASSOC) to get numeric and string keys respectively. The default is SQLITE3_BOTH, which I’ve always hated.