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<?php
namespace Doctrine\DBAL\Driver;
use Doctrine\DBAL\ParameterType;
/**
* Driver-level statement
*/
interface Statement
{
/**
* Binds a value to a corresponding named (not supported by mysqli driver, see comment below) or positional
* placeholder in the SQL statement that was used to prepare the statement.
*
* As mentioned above, the named parameters are not natively supported by the mysqli driver, use executeQuery(),
* fetchAll(), fetchArray(), fetchColumn(), fetchAssoc() methods to have the named parameter emulated by doctrine.
*
* @param string|int $param Parameter identifier. For a prepared statement using named placeholders,
* this will be a parameter name of the form :name. For a prepared statement
* using question mark placeholders, this will be the 1-indexed position of the parameter.
* @param mixed $value The value to bind to the parameter.
* @param int $type Explicit data type for the parameter using the {@see ParameterType}
* constants.
*
* @return bool TRUE on success or FALSE on failure.
*
* @throws Exception
*/
public function bindValue($param, $value, $type = ParameterType::STRING);
/**
* Binds a PHP variable to a corresponding named (not supported by mysqli driver, see comment below) or question
* mark placeholder in the SQL statement that was use to prepare the statement. Unlike {@see bindValue()},
* the variable is bound as a reference and will only be evaluated at the time
* that PDOStatement->execute() is called.
*
* As mentioned above, the named parameters are not natively supported by the mysqli driver, use executeQuery(),
* fetchAll(), fetchArray(), fetchColumn(), fetchAssoc() methods to have the named parameter emulated by doctrine.
*
* Most parameters are input parameters, that is, parameters that are
* used in a read-only fashion to build up the query. Some drivers support the invocation
* of stored procedures that return data as output parameters, and some also as input/output
* parameters that both send in data and are updated to receive it.
*
* @deprecated Use {@see bindValue()} instead.
*
* @param string|int $param Parameter identifier. For a prepared statement using named placeholders,
* this will be a parameter name of the form :name. For a prepared statement using
* question mark placeholders, this will be the 1-indexed position of the parameter.
* @param mixed $variable Name of the PHP variable to bind to the SQL statement parameter.
* @param int $type Explicit data type for the parameter using the {@see ParameterType}
* constants.
* @param int|null $length You must specify maxlength when using an OUT bind
* so that PHP allocates enough memory to hold the returned value.
*
* @return bool TRUE on success or FALSE on failure.
*
* @throws Exception
*/
public function bindParam($param, &$variable, $type = ParameterType::STRING, $length = null);
/**
* Executes a prepared statement
*
* If the prepared statement included parameter markers, you must either:
* call {@see bindParam()} to bind PHP variables to the parameter markers:
* bound variables pass their value as input and receive the output value,
* if any, of their associated parameter markers or pass an array of input-only
* parameter values.
*
* @param mixed[]|null $params A numeric array of values with as many elements as there are
* bound parameters in the SQL statement being executed.
*
* @throws Exception
*/
public function execute($params = null): Result;
}
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