Represents a database statement. Statements contains queries that can be executed multiple times by binding different values on each call. This class also helps convert values to their valid representation for the corresponding types.
This class is but a decorator of an actual statement implementation, such as PDOStatement.
string 'assoc'
Used to designate that an associated array be returned in a result when calling fetch methods
string 'num'
Used to designate that numeric indexes be returned in a result when calling fetch methods
string 'obj'
Used to designate that a stdClass object be returned in a result when calling fetch methods
Cake\Database\DriverInterfaceReference to the driver object associated to this statement.
boolWhether this statement has already been executed
Cake\Database\StatementInterfaceStatement instance implementation, such as PDOStatement or any other custom implementation.
stringConstructor
Magic getter to return $queryString as read-only.
Binds a set of values to statement object with corresponding type.
Assign a value to a positional or named variable in prepared query. If using positional variables you need to start with index one, if using named params then just use the name in any order.
Converts a give value to a suitable database value based on type and return relevant internal statement type
Closes a cursor in the database, freeing up any resources and memory allocated to it. In most cases you don't need to call this method, as it is automatically called after fetching all results from the result set.
Returns the number of columns this statement's results will contain.
Statements can be passed as argument for count() to return the number for affected rows from last execution.
Returns the error code for the last error that occurred when executing this statement.
Returns the error information for the last error that occurred when executing this statement.
Executes the statement by sending the SQL query to the database. It can optionally take an array or arguments to be bound to the query variables. Please note that binding parameters from this method will not perform any custom type conversion as it would normally happen when calling bindValue.
Returns the next row for the result set after executing this statement. Rows can be fetched to contain columns as names or positions. If no rows are left in result set, this method will return false.
Returns an array with all rows resulting from executing this statement.
Returns the next row in a result set as an associative array. Calling this function is the same as calling $statement->fetch(StatementDecorator::FETCH_TYPE_ASSOC). If no results are found an empty array is returned.
Returns the value of the result at position.
Returns the statement object that was decorated by this class.
Statements are iterable as arrays, this method will return the iterator object for traversing all items in the result.
Returns the latest primary inserted using this statement.
Matches columns to corresponding types
Returns the number of rows affected by this SQL statement.
__construct(Cake\Database\StatementInterface $statement, Cake\Database\DriverInterface $driver)
Constructor
Cake\Database\StatementInterface $statement Statement implementation such as PDOStatement.
Cake\Database\DriverInterface $driver Driver instance
__get(string $property): string|null
Magic getter to return $queryString as read-only.
string $property internal property to get
string|nullbind(array $params, array $types): void
Binds a set of values to statement object with corresponding type.
array $params list of values to be bound
array $types list of types to be used, keys should match those in $params
voidbindValue(string|int $column, mixed $value, string|int|null $type = 'string'): void
Assign a value to a positional or named variable in prepared query. If using positional variables you need to start with index one, if using named params then just use the name in any order.
It is not allowed to combine positional and named variables in the same statement.
$statement->bindValue(1, 'a title');
$statement->bindValue('active', true, 'boolean');
$statement->bindValue(5, new \DateTime(), 'date'); string|int $column name or param position to be bound
mixed $value The value to bind to variable in query
string|int|null $type optional name of configured Type class
voidcast(mixed $value, Cake\Database\TypeInterface|string|int $type = 'string'): array
Converts a give value to a suitable database value based on type and return relevant internal statement type
mixed $value The value to cast
Cake\Database\TypeInterface|string|int $type optional The type name or type instance to use.
arraycloseCursor(): void
Closes a cursor in the database, freeing up any resources and memory allocated to it. In most cases you don't need to call this method, as it is automatically called after fetching all results from the result set.
voidcolumnCount(): int
Returns the number of columns this statement's results will contain.
$statement = $connection->prepare('SELECT id, title from articles');
$statement->execute();
echo $statement->columnCount(); // outputs 2 intcount(): int
Statements can be passed as argument for count() to return the number for affected rows from last execution.
interrorCode(): string|int
Returns the error code for the last error that occurred when executing this statement.
string|interrorInfo(): array
Returns the error information for the last error that occurred when executing this statement.
arrayexecute(array|null $params = null): bool
Executes the statement by sending the SQL query to the database. It can optionally take an array or arguments to be bound to the query variables. Please note that binding parameters from this method will not perform any custom type conversion as it would normally happen when calling bindValue.
array|null $params optional list of values to be bound to query
boolfetch(string|int $type = self::FETCH_TYPE_NUM): mixed
Returns the next row for the result set after executing this statement. Rows can be fetched to contain columns as names or positions. If no rows are left in result set, this method will return false.
$statement = $connection->prepare('SELECT id, title from articles');
$statement->execute();
print_r($statement->fetch('assoc')); // will show ['id' => 1, 'title' => 'a title'] string|int $type optional 'num' for positional columns, assoc for named columns
mixedfetchAll(string|int $type = self::FETCH_TYPE_NUM): array|false
Returns an array with all rows resulting from executing this statement.
$statement = $connection->prepare('SELECT id, title from articles');
$statement->execute();
print_r($statement->fetchAll('assoc')); // will show [0 => ['id' => 1, 'title' => 'a title']] string|int $type optional num for fetching columns as positional keys or assoc for column names as keys
array|falsefetchAssoc(): array
Returns the next row in a result set as an associative array. Calling this function is the same as calling $statement->fetch(StatementDecorator::FETCH_TYPE_ASSOC). If no results are found an empty array is returned.
arrayfetchColumn(int $position): mixed
Returns the value of the result at position.
int $position The numeric position of the column to retrieve in the result
mixedgetInnerStatement(): Cake\Database\StatementInterface
Returns the statement object that was decorated by this class.
Cake\Database\StatementInterfacegetIterator(): Cake\Database\StatementInterface
Statements are iterable as arrays, this method will return the iterator object for traversing all items in the result.
$statement = $connection->prepare('SELECT id, title from articles');
foreach ($statement as $row) {
//do stuff
} Cake\Database\StatementInterfacelastInsertId(string|null $table = null, string|null $column = null): string|int
Returns the latest primary inserted using this statement.
string|null $table optional table name or sequence to get last insert value from
string|null $column optional the name of the column representing the primary key
string|intmatchTypes(array $columns, array $types): array
Matches columns to corresponding types
Both $columns and $types should either be numeric based or string key based at the same time.
array $columns list or associative array of columns and parameters to be bound with types
array $types list or associative array of types
arrayrowCount(): int
Returns the number of rows affected by this SQL statement.
$statement = $connection->prepare('SELECT id, title from articles');
$statement->execute();
print_r($statement->rowCount()); // will show 1 intReference to the driver object associated to this statement.
Cake\Database\DriverInterfaceWhether this statement has already been executed
boolStatement instance implementation, such as PDOStatement or any other custom implementation.
Cake\Database\StatementInterfacestring
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https://api.cakephp.org/4.4/class-Cake.Database.Statement.StatementDecorator.html