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11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
15 * This software consists of voluntary contributions made by many individuals
16 * and is licensed under the MIT license. For more information, see
17 * <http://www.doctrine-project.org>.
20 namespace Doctrine\DBAL\Driver;
25 * Statement interface.
26 * Drivers must implement this interface.
28 * This resembles (a subset of) the PDOStatement interface.
30 * @author Konsta Vesterinen <kvesteri@cc.hut.fi>
31 * @author Roman Borschel <roman@code-factory.org>
32 * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
33 * @link www.doctrine-project.org
36 interface Statement extends ResultStatement
39 * Binds a value to a corresponding named or positional
40 * placeholder in the SQL statement that was used to prepare the statement.
42 * @param mixed $param Parameter identifier. For a prepared statement using named placeholders,
43 * this will be a parameter name of the form :name. For a prepared statement
44 * using question mark placeholders, this will be the 1-indexed position of the parameter
46 * @param mixed $value The value to bind to the parameter.
47 * @param integer $type Explicit data type for the parameter using the PDO::PARAM_* constants.
49 * @return boolean Returns TRUE on success or FALSE on failure.
51 function bindValue($param, $value, $type = null);
54 * Binds a PHP variable to a corresponding named or question mark placeholder in the
55 * SQL statement that was use to prepare the statement. Unlike PDOStatement->bindValue(),
56 * the variable is bound as a reference and will only be evaluated at the time
57 * that PDOStatement->execute() is called.
59 * Most parameters are input parameters, that is, parameters that are
60 * used in a read-only fashion to build up the query. Some drivers support the invocation
61 * of stored procedures that return data as output parameters, and some also as input/output
62 * parameters that both send in data and are updated to receive it.
64 * @param mixed $column Parameter identifier. For a prepared statement using named placeholders,
65 * this will be a parameter name of the form :name. For a prepared statement
66 * using question mark placeholders, this will be the 1-indexed position of the parameter
68 * @param mixed $variable Name of the PHP variable to bind to the SQL statement parameter.
70 * @param integer $type Explicit data type for the parameter using the PDO::PARAM_* constants. To return
71 * an INOUT parameter from a stored procedure, use the bitwise OR operator to set the
72 * PDO::PARAM_INPUT_OUTPUT bits for the data_type parameter.
73 * @param integer $length You must specify maxlength when using an OUT bind so that PHP allocates enough memory to hold the returned value.
74 * @return boolean Returns TRUE on success or FALSE on failure.
76 function bindParam($column, &$variable, $type = null, $length = null);
80 * Fetch the SQLSTATE associated with the last operation on the statement handle
82 * @see Doctrine_Adapter_Interface::errorCode()
83 * @return string error code string
89 * Fetch extended error information associated with the last operation on the statement handle
91 * @see Doctrine_Adapter_Interface::errorInfo()
92 * @return array error info array
97 * Executes a prepared statement
99 * If the prepared statement included parameter markers, you must either:
100 * call PDOStatement->bindParam() to bind PHP variables to the parameter markers:
101 * bound variables pass their value as input and receive the output value,
102 * if any, of their associated parameter markers or pass an array of input-only
106 * @param array $params An array of values with as many elements as there are
107 * bound parameters in the SQL statement being executed.
108 * @return boolean Returns TRUE on success or FALSE on failure.
110 function execute($params = null);
114 * rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement
115 * executed by the corresponding object.
117 * If the last SQL statement executed by the associated Statement object was a SELECT statement,
118 * some databases may return the number of rows returned by that statement. However,
119 * this behaviour is not guaranteed for all databases and should not be
120 * relied on for portable applications.
122 * @return integer Returns the number of rows.