How can I retrieve the array value after querying the database? As long as the key value does not need a key name?

& Amp; lt ;? Php $ pdonewPDO (& quot; mysql: hostlocalhost; dbnamet1 & quot;, & quot; root & quot;, & quot;); $; gt; query (& #039; select * fromblog & #039;); $ result $ fig-& amp; gt; fetchALL (PDO: FETCH_ASSOC ); foreach ($ resultas $ v ){{... written in this way at the beginning
$ Pdo = new PDO ("mysql: host = localhost; dbname = t1", "root ","");
$…… = $ Pdo-> query ('select * from blog ');
$ Result = $ something-> fetchALL (PDO: FETCH_ASSOC );
Foreach ($ result as $ v ){

print_r($v);

}
?>

Later, I was told to write it like this, but the printed content is the same as the original one. How should I change it?
$ Pdo = new PDO ("mysql: host = localhost; dbname = mysql", "root ","");
$…… = $ Pdo-> query ('select * from user ');
$ Result = $ something-> fetchALL (PDO: FETCH_ASSOC );
$ Tmp_ary = array ();
Foreach ($ result as $ v ){

$tmp_ary[]=array_values($v);

}

Echo'

';
print_r($tmp_ary);
echo '

';

Reply content:

Written in this way at the beginning
$ Pdo = new PDO ("mysql: host = localhost; dbname = t1", "root ","");
$…… = $ Pdo-> query ('select * from blog ');
$ Result = $ something-> fetchALL (PDO: FETCH_ASSOC );
Foreach ($ result as $ v ){

print_r($v);

}
?>

Later, I was told to write it like this, but the printed content is the same as the original one. How should I change it?
$ Pdo = new PDO ("mysql: host = localhost; dbname = mysql", "root ","");
$…… = $ Pdo-> query ('select * from user ');
$ Result = $ something-> fetchALL (PDO: FETCH_ASSOC );
$ Tmp_ary = array ();
Foreach ($ result as $ v ){

$tmp_ary[]=array_values($v);

}

Echo'

';
print_r($tmp_ary);
echo '

';

array_valuesUnderstand the function for removing keys in PHP.

   "li", "sex" => 1        ),        array(            "user" => "er", "sex" => 2        )    );    var_dump($result);    $new = array();    foreach($result as $row){        $new[] = array_values($row);    }    var_dump($new);

When mysql extracts data, it seems that PDO has field information.