(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 0.2.0)

PDO::query Prepares and executes an SQL statement without placeholders


public PDO::query(string $query, ?int $fetchMode = null): PDOStatement|false
public PDO::query(string $query, ?int $fetchMode = PDO::FETCH_COLUMN, int $colno): PDOStatement|false
public PDO::query(
    string $query,
    ?int $fetchMode = PDO::FETCH_CLASS,
    string $classname,
    array $constructorArgs
): PDOStatement|false
public PDO::query(string $query, ?int $fetchMode = PDO::FETCH_INTO, object $object): PDOStatement|false

PDO::query() prepares and executes an SQL statement in a single function call, returning the statement as a PDOStatement object.

For a query that you need to issue multiple times, you will realize better performance if you prepare a PDOStatement object using PDO::prepare() and issue the statement with multiple calls to PDOStatement::execute().

If you do not fetch all of the data in a result set before issuing your next call to PDO::query(), your call may fail. Call PDOStatement::closeCursor() to release the database resources associated with the PDOStatement object before issuing your next call to PDO::query().


If the query contains placeholders, the statement must be prepared and executed separately using PDO::prepare() and PDOStatement::execute() methods.



The SQL statement to prepare and execute.

If the SQL contains placeholders, PDO::prepare() and PDOStatement::execute() must be used instead. Alternatively, the SQL can be prepared manually before calling PDO::query(), with the data properly formatted using PDO::quote() if the driver supports it.


The default fetch mode for the returned PDOStatement. It must be one of the PDO::FETCH_* constants.

If this argument is passed to the function, the remaining arguments will be treated as though PDOStatement::setFetchMode() was called on the resultant statement object. The subsequent arguments vary depending on the selected fetch mode.

Return Values

Returns a PDOStatement object or false on failure.


Emits an error with level E_WARNING if the attribute PDO::ATTR_ERRMODE is set to PDO::ERRMODE_WARNING.

Throws a PDOException if the attribute PDO::ATTR_ERRMODE is set to PDO::ERRMODE_EXCEPTION.


Example #1 SQL with no placeholders can be executed using PDO::query()

= 'SELECT name, color, calories FROM fruit ORDER BY name';
foreach (
$conn->query($sql) as $row) {
$row['name'] . "\t";
$row['color'] . "\t";
$row['calories'] . "\n";

The above example will output:

apple   red     150
banana  yellow  250
kiwi    brown   75
lemon   yellow  25
orange  orange  300
pear    green   150
watermelon      pink    90

See Also

add a note

User Contributed Notes 6 notes

fredrik at NOSPAM dot rambris dot com
17 years ago
The handling of errors by this function is controlled by the attribute PDO::ATTR_ERRMODE.

Use the following to make it throw an exception:
stefano[dot]bertoli [at] gmail[dot]com
9 years ago
Trying to pass like second argument PDO::FETCH_ASSOC it still work.

So passing FETCH TYPE like argument seems work.

This save you from something like:

= $stmt->setFetchMode(PDO::FETCH_NUM);

= $db->query('SELECT * FROM `mytable` WHERE true', PDO::FETCH_ASSOC);

marcos at marcosregis dot com
15 years ago
After a lot of hours working with DataLink on Oracle->MySQL and PDO we (me and Adriano Rodrigues, that solve it) discover that PDO (and oci too) need the attribute AUTOCOMMIT set to FALSE to work correctly with.
There's 3 ways to set autocommit to false: On constructor, setting the atribute after construct and before query data or initiating a Transaction (that turns off autocommit mode)

The examples:
// First way - On PDO Constructor
$options = array(PDO::ATTR_AUTOCOMMIT=>FALSE);

$pdo = new PDO($dsn,$user,$pass,$options);

// now we are ready to query DataLinks


// Second Way - Before create statements
$pdo = new PDO($dsn,$user,$pass);

// or

// now we are ready to query DataLinks

To use DataLinks on oci just use OCI_DEFAULT on oci_execute() function;
dozoyousan at gmail dot com
18 years ago
> When query() fails, the boolean false is returned.

I think that is "Silent Mode".
If that set attribute ErrorMode "Exception Mode"
then that throw PDOException.
$pdoObj = new PDO( $dsn, $user, $pass );
Ilyas Bakirov
3 years ago
I would like to mention fetching rows from SQL query using PDO:


= new PDO('mysql:host=localhost;dbname=test', $user, $pass);

// use the connection here
$sth = $dbh->query('SELECT * FROM countries');

// fetch all rows into array, by default PDO::FETCH_BOTH is used
$rows = $stm->fetchAll();

// iterate over array by index and by name
foreach($rows as $row) {

printf("$row[0] $row[1] $row[2]\n");
printf("$row['id'] $row['name'] $row['population']\n");

8 months ago
When you make a wraper for PDO:query, you must define the method like this:

public function query( string $sql, ?int $fetchMode = null, mixed ...$fetchModeArgs) : \PDOStatement|false

if you delete one of the parameters or use one of the oficials parameters you get a Fatal error
To Top