interface DatabaseStatementInterface
Represents a prepared statement.
Some methods in that class are purposefully commented out. Due to a change in how PHP defines PDOStatement, we can't define a signature for those methods that will work the same way between versions older than 5.2.6 and later versions. See http://bugs.php.net/bug.php?id=42452 for more details.
Child implementations should either extend PDOStatement:
class DatabaseStatement_oracle extends PDOStatement implements DatabaseStatementInterface {
}
or define their own class. If defining their own class, they will also have to implement either the Iterator or IteratorAggregate interface before DatabaseStatementInterface:
class DatabaseStatement_oracle implements Iterator, DatabaseStatementInterface {
}
Hierarchy
- interface \DatabaseStatementInterface extends \Traversable
Expanded class hierarchy of DatabaseStatementInterface
All classes that implement DatabaseStatementInterface
Related topics
File
-
includes/
database/ database.inc, line 2068
View source
interface DatabaseStatementInterface extends Traversable {
/**
* Executes a prepared statement
*
* @param $args
* An array of values with as many elements as there are bound parameters in
* the SQL statement being executed.
* @param $options
* An array of options for this query.
*
* @return
* TRUE on success, or FALSE on failure.
*/
public function execute($args = array(), $options = array());
/**
* Gets the query string of this statement.
*
* @return
* The query string, in its form with placeholders.
*/
public function getQueryString();
/**
* Returns the number of rows affected by the last SQL statement.
*
* @return
* The number of rows affected by the last DELETE, INSERT, or UPDATE
* statement executed.
*/
public function rowCount();
/**
* Sets the default fetch mode for this statement.
*
* See http://php.net/manual/pdo.constants.php for the definition of the
* constants used.
*
* @param $mode
* One of the PDO::FETCH_* constants.
* @param $a1
* An option depending of the fetch mode specified by $mode:
* - for PDO::FETCH_COLUMN, the index of the column to fetch
* - for PDO::FETCH_CLASS, the name of the class to create
* - for PDO::FETCH_INTO, the object to add the data to
* @param $a2
* If $mode is PDO::FETCH_CLASS, the optional arguments to pass to the
* constructor.
*/
// public function setFetchMode($mode, $a1 = NULL, $a2 = array());
/**
* Fetches the next row from a result set.
*
* See http://php.net/manual/pdo.constants.php for the definition of the
* constants used.
*
* @param $mode
* One of the PDO::FETCH_* constants.
* Default to what was specified by setFetchMode().
* @param $cursor_orientation
* Not implemented in all database drivers, don't use.
* @param $cursor_offset
* Not implemented in all database drivers, don't use.
*
* @return
* A result, formatted according to $mode.
*/
// public function fetch($mode = NULL, $cursor_orientation = NULL, $cursor_offset = NULL);
/**
* Returns a single field from the next record of a result set.
*
* @param $index
* The numeric index of the field to return. Defaults to the first field.
*
* @return
* A single field from the next record, or FALSE if there is no next record.
*/
public function fetchField($index = 0);
/**
* Fetches the next row and returns it as an object.
*
* The object will be of the class specified by DatabaseStatementInterface::setFetchMode()
* or stdClass if not specified.
*/
// public function fetchObject();
/**
* Fetches the next row and returns it as an associative array.
*
* This method corresponds to PDOStatement::fetchObject(), but for associative
* arrays. For some reason PDOStatement does not have a corresponding array
* helper method, so one is added.
*
* @return
* An associative array, or FALSE if there is no next row.
*/
public function fetchAssoc();
/**
* Returns an array containing all of the result set rows.
*
* @param $mode
* One of the PDO::FETCH_* constants.
* @param $column_index
* If $mode is PDO::FETCH_COLUMN, the index of the column to fetch.
* @param $constructor_arguments
* If $mode is PDO::FETCH_CLASS, the arguments to pass to the constructor.
*
* @return
* An array of results.
*/
// function fetchAll($mode = NULL, $column_index = NULL, array $constructor_arguments);
/**
* Returns an entire single column of a result set as an indexed array.
*
* Note that this method will run the result set to the end.
*
* @param $index
* The index of the column number to fetch.
*
* @return
* An indexed array, or an empty array if there is no result set.
*/
public function fetchCol($index = 0);
/**
* Returns the entire result set as a single associative array.
*
* This method is only useful for two-column result sets. It will return an
* associative array where the key is one column from the result set and the
* value is another field. In most cases, the default of the first two columns
* is appropriate.
*
* Note that this method will run the result set to the end.
*
* @param $key_index
* The numeric index of the field to use as the array key.
* @param $value_index
* The numeric index of the field to use as the array value.
*
* @return
* An associative array, or an empty array if there is no result set.
*/
public function fetchAllKeyed($key_index = 0, $value_index = 1);
/**
* Returns the result set as an associative array keyed by the given field.
*
* If the given key appears multiple times, later records will overwrite
* earlier ones.
*
* @param $key
* The name of the field on which to index the array.
* @param $fetch
* The fetchmode to use. If set to PDO::FETCH_ASSOC, PDO::FETCH_NUM, or
* PDO::FETCH_BOTH the returned value with be an array of arrays. For any
* other value it will be an array of objects. By default, the fetch mode
* set for the query will be used.
*
* @return
* An associative array, or an empty array if there is no result set.
*/
public function fetchAllAssoc($key, $fetch = NULL);
}
Members
Title Sort descending | Modifiers | Object type | Summary | Overrides |
---|---|---|---|---|
DatabaseStatementInterface::execute | public | function | Executes a prepared statement | 3 |
DatabaseStatementInterface::fetchAllAssoc | public | function | Returns the result set as an associative array keyed by the given field. | 3 |
DatabaseStatementInterface::fetchAllKeyed | public | function | Returns the entire result set as a single associative array. | 3 |
DatabaseStatementInterface::fetchAssoc | public | function | Fetches the next row and returns it as an associative array. | 3 |
DatabaseStatementInterface::fetchCol | public | function | Returns an entire single column of a result set as an indexed array. | 3 |
DatabaseStatementInterface::fetchField | public | function | Returns a single field from the next record of a result set. | 3 |
DatabaseStatementInterface::getQueryString | public | function | Gets the query string of this statement. | 3 |
DatabaseStatementInterface::rowCount | public | function | Returns the number of rows affected by the last SQL statement. | 2 |
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