Modules

Database_MySQLi
extends Kohana_Database_MySQLi
extends Database
extends Kohana_Database

MySQLi database connection.

package
Kohana/Database
category
Drivers
author
Kohana Team
copyright
© Kohana Team
license
https://koseven.ga/LICENSE.md

Class declared in MODPATH/database/classes/Database/MySQLi.php on line 3.

Constants

SELECT

integer 1

INSERT

integer 2

UPDATE

integer 3

DELETE

integer 4

Properties

public static string $default

default instance name

string(7) "default"

public static array $instances

Database instances

array(0) 

public string $last_query

the last query executed

Default value:
NULL

protected $_config

Default value:
NULL

protected $_connection

Default value:
NULL

protected $_connection_id

Default value:
NULL

protected static $_current_databases

array(0) 

protected $_identifier

Default value:
string(1) "`"

protected $_instance

Default value:
NULL

protected static $_set_names

NULL

Methods

public begin( [ string $mode = NULL ] ) (defined in Kohana_Database_MySQLi)

Start a SQL transaction

Parameters

  • string $mode = NULL - Isolation level

Tags

  • Link -

Return Values

  • boolean

Source Code

public function begin($mode = NULL)
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	if ($mode AND ! $this->_connection->query("SET TRANSACTION ISOLATION LEVEL $mode"))
	{
		throw new Database_Exception(':error', [
			':error' => $this->_connection->error
		], $this->_connection->errno);
	}

	return (bool) $this->_connection->query('START TRANSACTION');
}

public commit( ) (defined in Kohana_Database_MySQLi)

Commit a SQL transaction

Return Values

  • boolean

Source Code

public function commit()
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	return (bool) $this->_connection->query('COMMIT');
}

public connect( ) (defined in Kohana_Database_MySQLi)

Connect to the database. This is called automatically when the first query is executed.

$db->connect();

Tags

Return Values

  • void

Source Code

public function connect()
{
	if ($this->_connection)
		return;

	if (Database_MySQLi::$_set_names === NULL)
	{
		// Determine if we can use mysqli_set_charset(), which is only
		// available on PHP 5.2.3+ when compiled against MySQL 5.0+
		Database_MySQLi::$_set_names = ! function_exists('mysqli_set_charset');
	}

	// Extract the connection parameters, adding required variabels
	extract($this->_config['connection'] + [
		'database' => '',
		'hostname' => '',
		'username' => '',
		'password' => '',
		'socket'   => '',
		'port'     => 3306,
		'ssl'      => NULL,
	]);

	// Prevent this information from showing up in traces
	unset($this->_config['connection']['username'], $this->_config['connection']['password']);

	try
	{
		if(is_array($ssl))
		{
			$this->_connection = mysqli_init();
			$this->_connection->ssl_set(
				Arr::get($ssl, 'client_key_path'),
				Arr::get($ssl, 'client_cert_path'),
				Arr::get($ssl, 'ca_cert_path'),
				Arr::get($ssl, 'ca_dir_path'),
				Arr::get($ssl, 'cipher')
			);
			$this->_connection->real_connect($hostname, $username, $password, $database, $port, $socket, MYSQLI_CLIENT_SSL);
		}
		else
		{
			$this->_connection = new mysqli($hostname, $username, $password, $database, $port, $socket);
		}
	}
	catch (Exception $e)
	{
		// No connection exists
		$this->_connection = NULL;

		throw new Database_Exception(':error', [':error' => $e->getMessage()], $e->getCode());
	}

	// \xFF is a better delimiter, but the PHP driver uses underscore
	$this->_connection_id = sha1($hostname.'_'.$username.'_'.$password);

	if ( ! empty($this->_config['charset']))
	{
		// Set the character set
		$this->set_charset($this->_config['charset']);
	}

	if ( ! empty($this->_config['connection']['variables']))
	{
		// Set session variables
		$variables = [];

		foreach ($this->_config['connection']['variables'] as $var => $val)
		{
			$variables[] = 'SESSION '.$var.' = '.$this->quote($val);
		}

		$this->_connection->query('SET '.implode(', ', $variables));
	}
}

public datatype( string $type ) (defined in Kohana_Database_MySQLi)

Returns a normalized array describing the SQL data type

$db->datatype('char');

Parameters

  • string $type required - SQL data type

Return Values

  • array

Source Code

public function datatype($type)
{
	static $types = [
		'blob'                      => ['type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '65535'],
		'bool'                      => ['type' => 'bool'],
		'bigint unsigned'           => ['type' => 'int', 'min' => '0', 'max' => '18446744073709551615'],
		'datetime'                  => ['type' => 'string'],
		'decimal unsigned'          => ['type' => 'float', 'exact' => TRUE, 'min' => '0'],
		'double'                    => ['type' => 'float'],
		'double precision unsigned' => ['type' => 'float', 'min' => '0'],
		'double unsigned'           => ['type' => 'float', 'min' => '0'],
		'enum'                      => ['type' => 'string'],
		'fixed'                     => ['type' => 'float', 'exact' => TRUE],
		'fixed unsigned'            => ['type' => 'float', 'exact' => TRUE, 'min' => '0'],
		'float unsigned'            => ['type' => 'float', 'min' => '0'],
		'geometry'                  => ['type' => 'string', 'binary' => TRUE],
		'int unsigned'              => ['type' => 'int', 'min' => '0', 'max' => '4294967295'],
		'integer unsigned'          => ['type' => 'int', 'min' => '0', 'max' => '4294967295'],
		'longblob'                  => ['type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '4294967295'],
		'longtext'                  => ['type' => 'string', 'character_maximum_length' => '4294967295'],
		'mediumblob'                => ['type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '16777215'],
		'mediumint'                 => ['type' => 'int', 'min' => '-8388608', 'max' => '8388607'],
		'mediumint unsigned'        => ['type' => 'int', 'min' => '0', 'max' => '16777215'],
		'mediumtext'                => ['type' => 'string', 'character_maximum_length' => '16777215'],
		'national varchar'          => ['type' => 'string'],
		'numeric unsigned'          => ['type' => 'float', 'exact' => TRUE, 'min' => '0'],
		'nvarchar'                  => ['type' => 'string'],
		'point'                     => ['type' => 'string', 'binary' => TRUE],
		'real unsigned'             => ['type' => 'float', 'min' => '0'],
		'set'                       => ['type' => 'string'],
		'smallint unsigned'         => ['type' => 'int', 'min' => '0', 'max' => '65535'],
		'text'                      => ['type' => 'string', 'character_maximum_length' => '65535'],
		'tinyblob'                  => ['type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '255'],
		'tinyint'                   => ['type' => 'int', 'min' => '-128', 'max' => '127'],
		'tinyint unsigned'          => ['type' => 'int', 'min' => '0', 'max' => '255'],
		'tinytext'                  => ['type' => 'string', 'character_maximum_length' => '255'],
		'year'                      => ['type' => 'string'],
	];

	$type = str_replace(' zerofill', '', $type);

	if (isset($types[$type]))
		return $types[$type];

	return parent::datatype($type);
}

public disconnect( ) (defined in Kohana_Database_MySQLi)

Disconnect from the database. This is called automatically by Database::__destruct. Clears the database instance from Database::$instances.

$db->disconnect();

Return Values

  • boolean

Source Code

public function disconnect()
{
	try
	{
		// Database is assumed disconnected
		$status = TRUE;

		if (is_resource($this->_connection))
		{
			if ($status = $this->_connection->close())
			{
				// Clear the connection
				$this->_connection = NULL;

				// Clear the instance
				parent::disconnect();
			}
		}
	}
	catch (Exception $e)
	{
		// Database is probably not disconnected
		$status = ! is_resource($this->_connection);
	}

	return $status;
}

public escape( string $value ) (defined in Kohana_Database_MySQLi)

Sanitize a string by escaping characters that could cause an SQL injection attack.

$value = $db->escape('any string');

Parameters

  • string $value required - Value to quote

Return Values

  • string

Source Code

public function escape($value)
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	if (($value = $this->_connection->real_escape_string( (string) $value)) === FALSE)
	{
		throw new Database_Exception(':error', [
			':error' => $this->_connection->error,
		], $this->_connection->errno);
	}

	// SQL standard is to use single-quotes for all values
	return "'$value'";
}

public list_columns( string $table [, string $like = NULL , boolean $add_prefix = bool TRUE ] ) (defined in Kohana_Database_MySQLi)

Lists all of the columns in a table. Optionally, a LIKE string can be used to search for specific fields.

// Get all columns from the "users" table
$columns = $db->list_columns('users');

// Get all name-related columns
$columns = $db->list_columns('users', '%name%');

// Get the columns from a table that doesn't use the table prefix
$columns = $db->list_columns('users', NULL, FALSE);

Parameters

  • string $table required - Table to get columns from
  • string $like = NULL - Column to search for
  • boolean $add_prefix = bool TRUE - Whether to add the table prefix automatically or not

Return Values

  • array

Source Code

public function list_columns($table, $like = NULL, $add_prefix = TRUE)
{
	// Quote the table name
	$table = ($add_prefix === TRUE) ? $this->quote_table($table) : $table;

	if (is_string($like))
	{
		// Search for column names
		$result = $this->query(Database::SELECT, 'SHOW FULL COLUMNS FROM '.$table.' LIKE '.$this->quote($like), FALSE);
	}
	else
	{
		// Find all column names
		$result = $this->query(Database::SELECT, 'SHOW FULL COLUMNS FROM '.$table, FALSE);
	}

	$count = 0;
	$columns = [];
	foreach ($result as $row)
	{
		list($type, $length) = $this->_parse_type($row['Type']);

		$column = $this->datatype($type);

		$column['column_name']      = $row['Field'];
		$column['column_default']   = $row['Default'];
		$column['data_type']        = $type;
		$column['is_nullable']      = ($row['Null'] == 'YES');
		$column['ordinal_position'] = ++$count;

		switch ($column['type'])
		{
			case 'float':
				if (isset($length))
				{
					list($column['numeric_precision'], $column['numeric_scale']) = explode(',', $length);
				}
			break;
			case 'int':
				if (isset($length))
				{
					// MySQL attribute
					$column['display'] = $length;
				}
			break;
			case 'string':
				switch ($column['data_type'])
				{
					case 'binary':
					case 'varbinary':
						$column['character_maximum_length'] = $length;
					break;
					case 'char':
					case 'varchar':
						$column['character_maximum_length'] = $length;
					case 'text':
					case 'tinytext':
					case 'mediumtext':
					case 'longtext':
						$column['collation_name'] = $row['Collation'];
					break;
					case 'enum':
					case 'set':
						$column['collation_name'] = $row['Collation'];
						$column['options'] = explode('\',\'', substr($length, 1, -1));
					break;
				}
			break;
		}

		// MySQL attributes
		$column['comment']      = $row['Comment'];
		$column['extra']        = $row['Extra'];
		$column['key']          = $row['Key'];
		$column['privileges']   = $row['Privileges'];

		$columns[$row['Field']] = $column;
	}

	return $columns;
}

public list_tables( [ string $like = NULL ] ) (defined in Kohana_Database_MySQLi)

List all of the tables in the database. Optionally, a LIKE string can be used to search for specific tables.

// Get all tables in the current database
$tables = $db->list_tables();

// Get all user-related tables
$tables = $db->list_tables('user%');

Parameters

  • string $like = NULL - Table to search for

Return Values

  • array

Source Code

public function list_tables($like = NULL)
{
	if (is_string($like))
	{
		// Search for table names
		$result = $this->query(Database::SELECT, 'SHOW TABLES LIKE '.$this->quote($like), FALSE);
	}
	else
	{
		// Find all table names
		$result = $this->query(Database::SELECT, 'SHOW TABLES', FALSE);
	}

	$tables = [];
	foreach ($result as $row)
	{
		$tables[] = reset($row);
	}

	return $tables;
}

public query( integer $type , string $sql [, mixed $as_object = bool FALSE , array $params = NULL ] ) (defined in Kohana_Database_MySQLi)

Perform an SQL query of the given type.

// Make a SELECT query and use objects for results
$db->query(Database::SELECT, 'SELECT * FROM groups', TRUE);

// Make a SELECT query and use "Model_User" for the results
$db->query(Database::SELECT, 'SELECT * FROM users LIMIT 1', 'Model_User');

Parameters

  • integer $type required - Database::SELECT, Database::INSERT, etc
  • string $sql required - SQL query
  • mixed $as_object = bool FALSE - Result object class string, TRUE for stdClass, FALSE for assoc array
  • array $params = NULL - Object construct parameters for result class

Return Values

  • object - Database_Result for SELECT queries
  • array - List (insert id, row count) for INSERT queries
  • integer - Number of affected rows for all other queries

Source Code

public function query($type, $sql, $as_object = FALSE, array $params = NULL)
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	if (Kohana::$profiling)
	{
		// Benchmark this query for the current instance
		$benchmark = Profiler::start("Database ({$this->_instance})", $sql);
	}

	// Execute the query
	if (($result = $this->_connection->query($sql)) === FALSE)
	{
		if (isset($benchmark))
		{
			// This benchmark is worthless
			Profiler::delete($benchmark);
		}

		throw new Database_Exception(':error [ :query ]', [
			':error' => $this->_connection->error,
			':query' => $sql
		], $this->_connection->errno);
	}

	if (isset($benchmark))
	{
		Profiler::stop($benchmark);
	}

	// Set the last query
	$this->last_query = $sql;

	if ($type === Database::SELECT)
	{
		// Return an iterator of results
		return new Database_MySQLi_Result($result, $sql, $as_object, $params);
	}
	elseif ($type === Database::INSERT)
	{
		// Return a list of insert id and rows created
		return [
			$this->_connection->insert_id,
			$this->_connection->affected_rows,
		];
	}
	else
	{
		// Return the number of rows affected
		return $this->_connection->affected_rows;
	}
}

public rollback( ) (defined in Kohana_Database_MySQLi)

Rollback a SQL transaction

Return Values

  • boolean

Source Code

public function rollback()
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	return (bool) $this->_connection->query('ROLLBACK');
}

public set_charset( string $charset ) (defined in Kohana_Database_MySQLi)

Set the connection character set. This is called automatically by Database::connect.

$db->set_charset('utf8');

Parameters

  • string $charset required - Character set name

Tags

Return Values

  • void

Source Code

public function set_charset($charset)
{
	// Make sure the database is connected
	$this->_connection or $this->connect();

	if (Database_MySQLi::$_set_names === TRUE)
	{
		// PHP is compiled against MySQL 4.x
		$status = (bool) $this->_connection->query('SET NAMES '.$this->quote($charset));
	}
	else
	{
		// PHP is compiled against MySQL 5.x
		$status = $this->_connection->set_charset($charset);
	}

	if ($status === FALSE)
	{
		throw new Database_Exception(':error', [':error' => $this->_connection->error], $this->_connection->errno);
	}
}

public __construct( ) (defined in Kohana_Database)

Stores the database configuration locally and name the instance.

This method cannot be accessed directly, you must use Database::instance.

Return Values

  • void

Source Code

public function __construct($name, array $config)
{
	// Set the instance name
	$this->_instance = $name;

	// Store the config locally
	$this->_config = $config;

	if (empty($this->_config['table_prefix']))
	{
		$this->_config['table_prefix'] = '';
	}
}

public __destruct( ) (defined in Kohana_Database)

Disconnect from the database when the object is destroyed.

// Destroy the database instance
unset(Database::instances[(string) $db], $db);

Calling unset($db) is not enough to destroy the database, as it will still be stored in Database::$instances.

Return Values

  • void

Source Code

public function __destruct()
{
	$this->disconnect();
}

public __toString( ) (defined in Kohana_Database)

Returns the database instance name.

echo (string) $db;

Return Values

  • string

Source Code

public function __toString()
{
	return $this->_instance;
}

public count_records( mixed $table ) (defined in Kohana_Database)

Count the number of records in a table.

// Get the total number of records in the "users" table
$count = $db->count_records('users');

Parameters

  • mixed $table required - Table name string or array(query, alias)

Return Values

  • integer

Source Code

public function count_records($table)
{
	// Quote the table name
	$table = $this->quote_table($table);

	return $this->query(Database::SELECT, 'SELECT COUNT(*) AS total_row_count FROM '.$table, FALSE)
		->get('total_row_count');
}

public static instance( [ string $name = NULL , array $config = NULL ] ) (defined in Kohana_Database)

Get a singleton Database instance. If configuration is not specified, it will be loaded from the database configuration file using the same group as the name.

// Load the default database
$db = Database::instance();

// Create a custom configured instance
$db = Database::instance('custom', $config);

Parameters

  • string $name = NULL - Instance name
  • array $config = NULL - Configuration parameters

Return Values

  • Database

Source Code

public static function instance($name = NULL, array $config = NULL)
{
	if ($name === NULL)
	{
		// Use the default instance name
		$name = Database::$default;
	}

	if ( ! isset(Database::$instances[$name]))
	{
		if ($config === NULL)
		{
			// Load the configuration for this database
			$config = Kohana::$config->load('database')->$name;
		}

		if ( ! isset($config['type']))
		{
			throw new Kohana_Exception('Database type not defined in :name configuration',
				[':name' => $name]);
		}

		// Set the driver class name
		$driver = 'Database_'.ucfirst($config['type']);

		// Create the database connection instance
		$driver = new $driver($name, $config);

		// Store the database instance
		Database::$instances[$name] = $driver;
	}

	return Database::$instances[$name];
}

public quote( mixed $value ) (defined in Kohana_Database)

Quote a value for an SQL query.

$db->quote(NULL);   // 'NULL'
$db->quote(10);     // 10
$db->quote('fred'); // 'fred'

Objects passed to this function will be converted to strings. Database_Expression objects will be compiled. Database_Query objects will be compiled and converted to a sub-query. All other objects will be converted using the __toString method.

Parameters

  • mixed $value required - Any value to quote

Tags

Return Values

  • string

Source Code

public function quote($value)
{
	if ($value === NULL)
	{
		return 'NULL';
	}
	elseif ($value === TRUE)
	{
		return "'1'";
	}
	elseif ($value === FALSE)
	{
		return "'0'";
	}
	elseif (is_object($value))
	{
		if ($value instanceof Database_Query)
		{
			// Create a sub-query
			return '('.$value->compile($this).')';
		}
		elseif ($value instanceof Database_Expression)
		{
			// Compile the expression
			return $value->compile($this);
		}
		else
		{
			// Convert the object to a string
			return $this->quote( (string) $value);
		}
	}
	elseif (is_array($value))
	{
		return '('.implode(', ', array_map([$this, __FUNCTION__], $value)).')';
	}
	elseif (is_int($value))
	{
		return (int) $value;
	}
	elseif (is_float($value))
	{
		// Convert to non-locale aware float to prevent possible commas
		return sprintf('%F', $value);
	}

	return $this->escape($value);
}

public quote_column( mixed $column ) (defined in Kohana_Database)

Quote a database column name and add the table prefix if needed.

$column = $db->quote_column($column);

You can also use SQL methods within identifiers.

$column = $db->quote_column(DB::expr('COUNT(`column`)'));

Objects passed to this function will be converted to strings. Database_Expression objects will be compiled. Database_Query objects will be compiled and converted to a sub-query. All other objects will be converted using the __toString method.

Parameters

  • mixed $column required - Column name or array(column, alias)

Tags

Return Values

  • string

Source Code

public function quote_column($column)
{
	// Identifiers are escaped by repeating them
	$escaped_identifier = $this->_identifier.$this->_identifier;

	if (is_array($column))
	{
		list($column, $alias) = $column;
		$alias = str_replace($this->_identifier, $escaped_identifier, $alias);
	}

	if ($column instanceof Database_Query)
	{
		// Create a sub-query
		$column = '('.$column->compile($this).')';
	}
	elseif ($column instanceof Database_Expression)
	{
		// Compile the expression
		$column = $column->compile($this);
	}
	else
	{
		// Convert to a string
		$column = (string) $column;

		$column = str_replace($this->_identifier, $escaped_identifier, $column);

		if ($column === '*')
		{
			return $column;
		}
		elseif (strpos($column, '.') !== FALSE)
		{
			$parts = explode('.', $column);

			if ($prefix = $this->table_prefix())
			{
				// Get the offset of the table name, 2nd-to-last part
				$offset = count($parts) - 2;

				// Add the table prefix to the table name
				$parts[$offset] = $prefix.$parts[$offset];
			}

			foreach ($parts as & $part)
			{
				if ($part !== '*')
				{
					// Quote each of the parts
					$part = $this->_identifier.$part.$this->_identifier;
				}
			}

			$column = implode('.', $parts);
		}
		else
		{
			$column = $this->_identifier.$column.$this->_identifier;
		}
	}

	if (isset($alias))
	{
		$column .= ' AS '.$this->_identifier.$alias.$this->_identifier;
	}

	return $column;
}

public quote_identifier( mixed $value ) (defined in Kohana_Database)

Quote a database identifier

Objects passed to this function will be converted to strings. Database_Expression objects will be compiled. Database_Query objects will be compiled and converted to a sub-query. All other objects will be converted using the __toString method.

Parameters

  • mixed $value required - Any identifier

Return Values

  • string

Source Code

public function quote_identifier($value)
{
	// Identifiers are escaped by repeating them
	$escaped_identifier = $this->_identifier.$this->_identifier;

	if (is_array($value))
	{
		list($value, $alias) = $value;
		$alias = str_replace($this->_identifier, $escaped_identifier, $alias);
	}

	if ($value instanceof Database_Query)
	{
		// Create a sub-query
		$value = '('.$value->compile($this).')';
	}
	elseif ($value instanceof Database_Expression)
	{
		// Compile the expression
		$value = $value->compile($this);
	}
	else
	{
		// Convert to a string
		$value = (string) $value;

		$value = str_replace($this->_identifier, $escaped_identifier, $value);

		if (strpos($value, '.') !== FALSE)
		{
			$parts = explode('.', $value);

			foreach ($parts as & $part)
			{
				// Quote each of the parts
				$part = $this->_identifier.$part.$this->_identifier;
			}

			$value = implode('.', $parts);
		}
		else
		{
			$value = $this->_identifier.$value.$this->_identifier;
		}
	}

	if (isset($alias))
	{
		$value .= ' AS '.$this->_identifier.$alias.$this->_identifier;
	}

	return $value;
}

public quote_table( mixed $table ) (defined in Kohana_Database)

Quote a database table name and adds the table prefix if needed.

$table = $db->quote_table($table);

Objects passed to this function will be converted to strings. Database_Expression objects will be compiled. Database_Query objects will be compiled and converted to a sub-query. All other objects will be converted using the __toString method.

Parameters

  • mixed $table required - Table name or array(table, alias)

Tags

Return Values

  • string

Source Code

public function quote_table($table)
{
	// Identifiers are escaped by repeating them
	$escaped_identifier = $this->_identifier.$this->_identifier;

	if (is_array($table))
	{
		list($table, $alias) = $table;
		$alias = str_replace($this->_identifier, $escaped_identifier, $alias);
	}

	if ($table instanceof Database_Query)
	{
		// Create a sub-query
		$table = '('.$table->compile($this).')';
	}
	elseif ($table instanceof Database_Expression)
	{
		// Compile the expression
		$table = $table->compile($this);
	}
	else
	{
		// Convert to a string
		$table = (string) $table;

		$table = str_replace($this->_identifier, $escaped_identifier, $table);

		if (strpos($table, '.') !== FALSE)
		{
			$parts = explode('.', $table);

			if ($prefix = $this->table_prefix())
			{
				// Get the offset of the table name, last part
				$offset = count($parts) - 1;

				// Add the table prefix to the table name
				$parts[$offset] = $prefix.$parts[$offset];
			}

			foreach ($parts as & $part)
			{
				// Quote each of the parts
				$part = $this->_identifier.$part.$this->_identifier;
			}

			$table = implode('.', $parts);
		}
		else
		{
			// Add the table prefix
			$table = $this->_identifier.$this->table_prefix().$table.$this->_identifier;
		}
	}

	if (isset($alias))
	{
		// Attach table prefix to alias
		$table .= ' AS '.$this->_identifier.$this->table_prefix().$alias.$this->_identifier;
	}

	return $table;
}

public table_prefix( ) (defined in Kohana_Database)

Return the table prefix defined in the current configuration.

$prefix = $db->table_prefix();

Return Values

  • string

Source Code

public function table_prefix()
{
	return $this->_config['table_prefix'];
}

protected _parse_type( string $type ) (defined in Kohana_Database)

Extracts the text between parentheses, if any.

// Returns: array('CHAR', '6')
list($type, $length) = $db->_parse_type('CHAR(6)');

Parameters

  • string $type required - $type

Return Values

  • array - List containing the type and length, if any

Source Code

protected function _parse_type($type)
{
	if (($open = strpos($type, '(')) === FALSE)
	{
		// No length specified
		return [$type, NULL];
	}

	// Closing parenthesis
	$close = strrpos($type, ')', $open);

	// Length without parentheses
	$length = substr($type, $open + 1, $close - 1 - $open);

	// Type without the length
	$type = substr($type, 0, $open).substr($type, $close + 1);

	return [$type, $length];
}