Vergleich inc/db_mysqli.php - 1.8.1 - 1.8.38

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 *
*/


 *
*/


class DB_MySQLi

class DB_MySQLi implements DB_Base

{
/**
* The title of this layer.

{
/**
* The title of this layer.

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	/**
* The read database connection resource.
*

	/**
* The read database connection resource.
*

	 * @var resource

	 * @var mysqli

	 */
public $read_link;

/**
* The write database connection resource
*

	 */
public $read_link;

/**
* The write database connection resource
*

	 * @var resource

	 * @var mysqli

	 */
public $write_link;

/**
* Reference to the last database connection resource used.
*

	 */
public $write_link;

/**
* Reference to the last database connection resource used.
*

	 * @var resource

	 * @var mysqli

	 */
public $current_link;

/**

	 */
public $current_link;

/**

	 * Explanation of a query.













	 * @var array
*/
public $connections = array();

/**
* The database name.
*
* @var string
*/
public $database;

/**
* Explanation of a query.

	 *
* @var string
*/
public $explain;

	 *
* @var string
*/
public $explain;


/**


/**

	 * The current version of MySQL.
*
* @var string

	 * The current version of MySQL.
*
* @var string

Zeile 89Zeile 101

/**
* The current table type in use (myisam/innodb)


/**
* The current table type in use (myisam/innodb)

	 *
* @var string
*/

	 *
* @var string
*/

	public $table_type = "myisam";

/**

	public $table_type = "myisam";

/**

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	/**
* Connect to the database server.
*

	/**
* Connect to the database server.
*

	 * @param array Array of DBMS connection details.
* @return resource The DB connection resource. Returns false on fail or -1 on a db connect failure.

	 * @param array $config Array of DBMS connection details.
* @return mysqli The DB connection resource. Returns false on fail or -1 on a db connect failure.

	 */
function connect($config)
{
// Simple connection to one server
if(array_key_exists('hostname', $config))

	 */
function connect($config)
{
// Simple connection to one server
if(array_key_exists('hostname', $config))

		{

		{

			$connections['read'][] = $config;
}
else

			$connections['read'][] = $config;
}
else

Zeile 170Zeile 182
			}
}


			}
}


		$this->db_encoding = $config['encoding'];




		if(isset($config['encoding']))
{
$this->db_encoding = $config['encoding'];
}


// Actually connect to the specified servers
foreach(array('read', 'write') as $type)


// Actually connect to the specified servers
foreach(array('read', 'write') as $type)

Zeile 183Zeile 198
			if(array_key_exists('hostname', $connections[$type]))
{
$details = $connections[$type];

			if(array_key_exists('hostname', $connections[$type]))
{
$details = $connections[$type];

				unset($connections);

				unset($connections[$type]);

				$connections[$type][] = $details;
}


				$connections[$type][] = $details;
}


Zeile 218Zeile 233
				else
{
$this->$link = @$connect_function($persist.$single_connection['hostname'], $single_connection['username'], $single_connection['password']);

				else
{
$this->$link = @$connect_function($persist.$single_connection['hostname'], $single_connection['username'], $single_connection['password']);

				}


				}


				$time_spent = get_execution_time();
$this->query_time += $time_spent;


				$time_spent = get_execution_time();
$this->query_time += $time_spent;


Zeile 240Zeile 255
		if(!array_key_exists('write', $connections))
{
$this->write_link = &$this->read_link;

		if(!array_key_exists('write', $connections))
{
$this->write_link = &$this->read_link;

		}

		}


// Have no read connection?
if(!$this->read_link)


// Have no read connection?
if(!$this->read_link)

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	/**
* Selects the database to use.
*

	/**
* Selects the database to use.
*

	 * @param string The database name.

	 * @param string $database The database name.

	 * @return boolean True when successfully connected, false if not.
*/
function select_db($database)

	 * @return boolean True when successfully connected, false if not.
*/
function select_db($database)

	{
global $mybb;

	{
$this->database = $database;


$master_success = @mysqli_select_db($this->read_link, $database) or $this->error("[READ] Unable to select database", $this->read_link);
if($this->write_link)


$master_success = @mysqli_select_db($this->read_link, $database) or $this->error("[READ] Unable to select database", $this->read_link);
if($this->write_link)

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			$success = ($master_success && $slave_success ? true : false);
}
else

			$success = ($master_success && $slave_success ? true : false);
}
else

		{

		{

			$success = $master_success;
}


			$success = $master_success;
}


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	/**
* Query the database.
*

	/**
* Query the database.
*

	 * @param string The query SQL.
* @param boolean 1 if hide errors, 0 if not.
* @param integer 1 if executes on master database, 0 if not.
* @return resource The query data.

	 * @param string $string The query SQL.
* @param boolean|int $hide_errors 1 if hide errors, 0 if not.
* @param integer $write_query 1 if executes on master database, 0 if not.
* @return mysqli_result The query data.

	 */
function query($string, $hide_errors=0, $write_query=0)
{

	 */
function query($string, $hide_errors=0, $write_query=0)
{

		global $pagestarttime, $db, $mybb;

		global $mybb;


get_execution_time();



get_execution_time();


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	/**
* Execute a write query on the master database
*

	/**
* Execute a write query on the master database
*

	 * @param string The query SQL.
* @param boolean 1 if hide errors, 0 if not.
* @return resource The query data.

	 * @param string $query The query SQL.
* @param boolean|int $hide_errors 1 if hide errors, 0 if not.
* @return mysqli_result The query data.

	 */
function write_query($query, $hide_errors=0)
{

	 */
function write_query($query, $hide_errors=0)
{

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	/**
* Explain a query on the database.
*

	/**
* Explain a query on the database.
*

	 * @param string The query SQL.
* @param string The time it took to perform the query.

	 * @param string $string The query SQL.
* @param string $qtime The time it took to perform the query.

	 */
function explain_query($string, $qtime)
{

	 */
function explain_query($string, $qtime)
{

Zeile 443Zeile 458
	/**
* Return a result array for a query.
*

	/**
* Return a result array for a query.
*

	 * @param resource The query data.
* @param constant The type of array to return.

	 * @param mysqli_result $query The query data.
* @param int $resulttype The type of array to return. Either MYSQLI_NUM, MYSQLI_BOTH or MYSQLI_ASSOC

	 * @return array The array of results.
*/
function fetch_array($query, $resulttype=MYSQLI_ASSOC)

	 * @return array The array of results.
*/
function fetch_array($query, $resulttype=MYSQLI_ASSOC)

Zeile 467Zeile 482
	/**
* Return a specific field from a query.
*

	/**
* Return a specific field from a query.
*

	 * @param resource The query ID.
* @param string The name of the field to return.
* @param int The number of the row to fetch it from.

	 * @param mysqli_result $query The query ID.
* @param string $field The name of the field to return.
* @param int|bool $row The number of the row to fetch it from.

	 */
function fetch_field($query, $field, $row=false)
{

	 */
function fetch_field($query, $field, $row=false)
{

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			$this->data_seek($query, $row);
}
$array = $this->fetch_array($query);

			$this->data_seek($query, $row);
}
$array = $this->fetch_array($query);

		return $array[$field];





		if($array !== null)
{
return $array[$field];
}
return null;

	}

/**
* Moves internal row pointer to the next row

	}

/**
* Moves internal row pointer to the next row

	 *
* @param resource The query ID.
* @param int The pointer to move the row to.
*/


	 *
* @param mysqli_result $query The query ID.
* @param int $row The pointer to move the row to.
* @return bool
*/

	function data_seek($query, $row)
{
return mysqli_data_seek($query, $row);

	function data_seek($query, $row)
{
return mysqli_data_seek($query, $row);

	}


	}


	/**
* Return the number of rows resulting from a query.
*

	/**
* Return the number of rows resulting from a query.
*

	 * @param resource The query data.

	 * @param mysqli_result $query The query data.

	 * @return int The number of rows in the result.

	 * @return int The number of rows in the result.

	 */

	 */

	function num_rows($query)
{
return mysqli_num_rows($query);

	function num_rows($query)
{
return mysqli_num_rows($query);

	}


	}


	/**
* Return the last id number of inserted data.
*
* @return int The id number.

	/**
* Return the last id number of inserted data.
*
* @return int The id number.

	 */

	 */

	function insert_id()
{
$id = mysqli_insert_id($this->current_link);

	function insert_id()
{
$id = mysqli_insert_id($this->current_link);

Zeile 522Zeile 542
	{
@mysqli_close($this->read_link);
if($this->write_link)

	{
@mysqli_close($this->read_link);
if($this->write_link)

		{

		{

			@mysqli_close($this->write_link);
}
}

			@mysqli_close($this->write_link);
}
}

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		if($this->current_link)
{
return mysqli_errno($this->current_link);

		if($this->current_link)
{
return mysqli_errno($this->current_link);

		}
else

		}
else

		{
return mysqli_connect_errno();
}

		{
return mysqli_connect_errno();
}

Zeile 554Zeile 574
		if($this->current_link)
{
return mysqli_error($this->current_link);

		if($this->current_link)
{
return mysqli_error($this->current_link);

		}

		}

		else

		else

		{

		{

			return mysqli_connect_error();
}
}

			return mysqli_connect_error();
}
}

Zeile 564Zeile 584
	/**
* Output a database error.
*

	/**
* Output a database error.
*

	 * @param string The string to present as an error.


	 * @param string $string The string to present as an error.
* @return bool Whether error reporting is enabled or not

	 */
function error($string="")
{
if($this->error_reporting)
{
if(class_exists("errorHandler"))

	 */
function error($string="")
{
if($this->error_reporting)
{
if(class_exists("errorHandler"))

			{

			{

				global $error_handler;

if(!is_object($error_handler))

				global $error_handler;

if(!is_object($error_handler))

Zeile 586Zeile 607
					"query" => $string
);
$error_handler->error(MYBB_SQL, $error);

					"query" => $string
);
$error_handler->error(MYBB_SQL, $error);

			}
else

			}
else

			{
trigger_error("<strong>[SQL] [".$this->error_number()."] ".$this->error_string()."</strong><br />{$string}", E_USER_ERROR);
}

			{
trigger_error("<strong>[SQL] [".$this->error_number()."] ".$this->error_string()."</strong><br />{$string}", E_USER_ERROR);
}

 

return true;

		}
else
{

		}
else
{

Zeile 611Zeile 634
	/**
* Return the number of fields.
*

	/**
* Return the number of fields.
*

	 * @param resource The query data.

	 * @param mysqli_result $query The query data.

	 * @return int The number of fields.
*/
function num_fields($query)
{
return mysqli_num_fields($query);

	 * @return int The number of fields.
*/
function num_fields($query)
{
return mysqli_num_fields($query);

	}

/**
* Lists all functions in the database.
*
* @param string The database name.
* @param string Prefix of the table (optional)

	}

/**
* Lists all tables in the database.
*
* @param string $database The database name.
* @param string $prefix Prefix of the table (optional)

	 * @return array The table list.
*/
function list_tables($database, $prefix='')
{
if($prefix)

	 * @return array The table list.
*/
function list_tables($database, $prefix='')
{
if($prefix)

		{
$query = $this->query("SHOW TABLES FROM `$database` LIKE '".$this->escape_string($prefix)."%'");








		{
if(version_compare($this->get_version(), '5.0.2', '>='))
{
$query = $this->query("SHOW FULL TABLES FROM `$database` WHERE table_type = 'BASE TABLE' AND `Tables_in_$database` LIKE '".$this->escape_string($prefix)."%'");
}
else
{
$query = $this->query("SHOW TABLES FROM `$database` LIKE '".$this->escape_string($prefix)."%'");
}

		}
else
{

		}
else
{

			$query = $this->query("SHOW TABLES FROM `$database`");








			if(version_compare($this->get_version(), '5.0.2', '>='))
{
$query = $this->query("SHOW FULL TABLES FROM `$database` WHERE table_type = 'BASE TABLE'");
}
else
{
$query = $this->query("SHOW TABLES FROM `$database`");
}

		}

$tables = array();

		}

$tables = array();

		while(list($table) = mysqli_fetch_array($query))
{
$tables[] = $table;
}


		while(list($table) = mysqli_fetch_array($query))
{
$tables[] = $table;
}


		return $tables;
}

/**
* Check if a table exists in a database.
*

		return $tables;
}

/**
* Check if a table exists in a database.
*

	 * @param string The table name.

	 * @param string $table The table name.

	 * @return boolean True when exists, false if not.
*/
function table_exists($table)
{
// Execute on master server to ensure if we've just created a table that we get the correct result

	 * @return boolean True when exists, false if not.
*/
function table_exists($table)
{
// Execute on master server to ensure if we've just created a table that we get the correct result

		$query = $this->write_query("
SHOW TABLES
LIKE '{$this->table_prefix}$table'
");
$exists = $this->num_rows($query);




		if(version_compare($this->get_version(), '5.0.2', '>='))
{
$query = $this->query("SHOW FULL TABLES FROM `".$this->database."` WHERE table_type = 'BASE TABLE' AND `Tables_in_".$this->database."` = '{$this->table_prefix}$table'");
}
else
{
$query = $this->query("SHOW TABLES LIKE '{$this->table_prefix}$table'");
}





 
		$exists = $this->num_rows($query);

		if($exists > 0)
{
return true;

		if($exists > 0)
{
return true;

Zeile 673Zeile 715
	/**
* Check if a field exists in a database.
*

	/**
* Check if a field exists in a database.
*

	 * @param string The field name.
* @param string The table name.

	 * @param string $field The field name.
* @param string $table The table name.

	 * @return boolean True when exists, false if not.
*/
function field_exists($field, $table)

	 * @return boolean True when exists, false if not.
*/
function field_exists($field, $table)

Zeile 699Zeile 741
	/**
* Add a shutdown query.
*

	/**
* Add a shutdown query.
*

	 * @param resource The query data.
* @param string An optional name for the query.

	 * @param mysqli_result $query The query data.
* @param string $name An optional name for the query.

	 */

	 */

	function shutdown_query($query, $name=0)

	function shutdown_query($query, $name="")

	{
global $shutdown_queries;
if($name)

	{
global $shutdown_queries;
if($name)

Zeile 718Zeile 760
	/**
* Performs a simple select query.
*

	/**
* Performs a simple select query.
*

	 * @param string The table name to be queried.
* @param string Comma delimetered list of fields to be selected.
* @param string SQL formatted list of conditions to be matched.
* @param array List of options: group by, order by, order direction, limit, limit start.
* @return resource The query data.

	 * @param string $table The table name to be queried.
* @param string $fields Comma delimetered list of fields to be selected.
* @param string $conditions SQL formatted list of conditions to be matched.
* @param array $options List of options: group by, order by, order direction, limit, limit start.
* @return mysqli_result The query data.

	 */
function simple_select($table, $fields="*", $conditions="", $options=array())
{

	 */
function simple_select($table, $fields="*", $conditions="", $options=array())
{

Zeile 762Zeile 804
	/**
* Build an insert query from an array.
*

	/**
* Build an insert query from an array.
*

	 * @param string The table name to perform the query on.
* @param array An array of fields and their values.

	 * @param string $table The table name to perform the query on.
* @param array $array An array of fields and their values.

	 * @return int The insert ID if available
*/
function insert_query($table, $array)

	 * @return int The insert ID if available
*/
function insert_query($table, $array)

Zeile 788Zeile 830
			}
else
{

			}
else
{

				$array[$field] = "'{$value}'";

				$array[$field] = $this->quote_val($value);

			}
}


			}
}


Zeile 805Zeile 847
	/**
* Build one query for multiple inserts from a multidimensional array.
*

	/**
* Build one query for multiple inserts from a multidimensional array.
*

	 * @param string The table name to perform the query on.
* @param array An array of inserts.
* @return int The insert ID if available

	 * @param string $table The table name to perform the query on.
* @param array $array An array of inserts.
* @return void

	 */
function insert_query_multiple($table, $array)
{

	 */
function insert_query_multiple($table, $array)
{

Zeile 815Zeile 857

if(!is_array($array))
{


if(!is_array($array))
{

			return false;

			return;

		}
// Field names
$fields = array_keys($array[0]);

		}
// Field names
$fields = array_keys($array[0]);

Zeile 837Zeile 879
				}
else
{

				}
else
{

					$values[$field] = "'{$value}'";

					$values[$field] = $this->quote_val($value);

				}
}
$insert_rows[] = "(".implode(",", $values).")";

				}
}
$insert_rows[] = "(".implode(",", $values).")";

Zeile 854Zeile 896
	/**
* Build an update query from an array.
*

	/**
* Build an update query from an array.
*

	 * @param string The table name to perform the query on.
* @param array An array of fields and their values.
* @param string An optional where clause for the query.
* @param string An optional limit clause for the query.
* @param boolean An option to quote incoming values of the array.
* @return resource The query data.

	 * @param string $table The table name to perform the query on.
* @param array $array An array of fields and their values.
* @param string $where An optional where clause for the query.
* @param string $limit An optional limit clause for the query.
* @param boolean $no_quote An option to quote incoming values of the array.
* @return mysqli_result The query data.

	 */
function update_query($table, $array, $where="", $limit="", $no_quote=false)
{

	 */
function update_query($table, $array, $where="", $limit="", $no_quote=false)
{

Zeile 892Zeile 934
			}
else
{

			}
else
{

				if(is_numeric($value))
{
$query .= $comma."`".$field."`={$value}";
}
else
{
$query .= $comma."`".$field."`={$quote}{$value}{$quote}";
}

				$quoted_value = $this->quote_val($value, $quote);

$query .= $comma."`".$field."`={$quoted_value}";






			}
$comma = ', ';

			}
$comma = ', ';

		}

if(!empty($where))
{

		}

if(!empty($where))
{

			$query .= " WHERE $where";
}


			$query .= " WHERE $where";
}


Zeile 918Zeile 955
			UPDATE {$this->table_prefix}$table
SET $query
");

			UPDATE {$this->table_prefix}$table
SET $query
");

 
	}

/**
* @param int|string $value
* @param string $quote
*
* @return int|string
*/
private function quote_val($value, $quote="'")
{
if(is_int($value))
{
$quoted = $value;
}
else
{
$quoted = $quote . $value . $quote;
}

return $quoted;

	}

/**
* Build a delete query.
*

	}

/**
* Build a delete query.
*

	 * @param string The table name to perform the query on.
* @param string An optional where clause for the query.
* @param string An optional limit clause for the query.
* @return resource The query data.

	 * @param string $table The table name to perform the query on.
* @param string $where An optional where clause for the query.
* @param string $limit An optional limit clause for the query.
* @return mysqli_result The query data.

	 */
function delete_query($table, $where="", $limit="")
{

	 */
function delete_query($table, $where="", $limit="")
{

Zeile 940Zeile 997
			$query .= " LIMIT $limit";
}
return $this->write_query("DELETE FROM {$this->table_prefix}$table $query");

			$query .= " LIMIT $limit";
}
return $this->write_query("DELETE FROM {$this->table_prefix}$table $query");

	}

/**

	}

/**

	 * Escape a string according to the MySQL escape format.
*

	 * Escape a string according to the MySQL escape format.
*

	 * @param string The string to be escaped.

	 * @param string $string The string to be escaped.

	 * @return string The escaped string.
*/
function escape_string($string)

	 * @return string The escaped string.
*/
function escape_string($string)

Zeile 973Zeile 1030
	/**
* Frees the resources of a MySQLi query.
*

	/**
* Frees the resources of a MySQLi query.
*

	 * @param object The query to destroy.
* @return boolean Returns true on success, false on faliure

	 * @param mysqli_result $query The query to destroy.
* @return boolean Returns true

	 */
function free_result($query)
{

	 */
function free_result($query)
{

		return mysqli_free_result($query);


		mysqli_free_result($query);
return true; // Kept for compatibility reasons

	}

/**
* Escape a string used within a like command.
*

	}

/**
* Escape a string used within a like command.
*

	 * @param string The string to be escaped.

	 * @param string $string The string to be escaped.

	 * @return string The escaped string.
*/
function escape_string_like($string)

	 * @return string The escaped string.
*/
function escape_string_like($string)

	{
return $this->escape_string(str_replace(array('%', '_') , array('\\%' , '\\_') , $string));
}


	{
return $this->escape_string(str_replace(array('\\', '%', '_') , array('\\\\', '\\%' , '\\_') , $string));
}


	/**
* Gets the current version of MySQL.
*

	/**
* Gets the current version of MySQL.
*

Zeile 1004Zeile 1062
			return $this->version;
}


			return $this->version;
}


		$version = @mysqli_get_server_info($this->read_link);
if(!$version)
{
$query = $this->query("SELECT VERSION() as version");
$ver = $this->fetch_array($query);
$version = $ver['version'];
}

		$query = $this->query("SELECT VERSION() as version");
$ver = $this->fetch_array($query);
$version = $ver['version'];






if($version)
{


if($version)
{

Zeile 1023Zeile 1077
	/**
* Optimizes a specific table.
*

	/**
* Optimizes a specific table.
*

	 * @param string The name of the table to be optimized.

	 * @param string $table The name of the table to be optimized.

	 */
function optimize_table($table)
{

	 */
function optimize_table($table)
{

Zeile 1033Zeile 1087
	/**
* Analyzes a specific table.
*

	/**
* Analyzes a specific table.
*

	 * @param string The name of the table to be analyzed.

	 * @param string $table The name of the table to be analyzed.

	 */
function analyze_table($table)
{

	 */
function analyze_table($table)
{

Zeile 1043Zeile 1097
	/**
* Show the "create table" command for a specific table.
*

	/**
* Show the "create table" command for a specific table.
*

	 * @param string The name of the table.

	 * @param string $table The name of the table.

	 * @return string The MySQL command to create the specified table.
*/
function show_create_table($table)

	 * @return string The MySQL command to create the specified table.
*/
function show_create_table($table)

Zeile 1057Zeile 1111
	/**
* Show the "show fields from" command for a specific table.
*

	/**
* Show the "show fields from" command for a specific table.
*

	 * @param string The name of the table.
* @return string Field info for that table

	 * @param string $table The name of the table.
* @return array Field info for that table

	 */
function show_fields_from($table)
{
$query = $this->write_query("SHOW FIELDS FROM ".$this->table_prefix.$table."");

	 */
function show_fields_from($table)
{
$query = $this->write_query("SHOW FIELDS FROM ".$this->table_prefix.$table."");

 
		$field_info = array();

		while($field = $this->fetch_array($query))
{
$field_info[] = $field;

		while($field = $this->fetch_array($query))
{
$field_info[] = $field;

Zeile 1073Zeile 1128
	/**
* Returns whether or not the table contains a fulltext index.
*

	/**
* Returns whether or not the table contains a fulltext index.
*

	 * @param string The name of the table.
* @param string Optionally specify the name of the index.

	 * @param string $table The name of the table.
* @param string $index Optionally specify the name of the index.

	 * @return boolean True or false if the table has a fulltext index or not.
*/
function is_fulltext($table, $index="")

	 * @return boolean True or false if the table has a fulltext index or not.
*/
function is_fulltext($table, $index="")

Zeile 1101Zeile 1156
	/**
* Returns whether or not this database engine supports fulltext indexing.
*

	/**
* Returns whether or not this database engine supports fulltext indexing.
*

	 * @param string The table to be checked.

	 * @param string $table The table to be checked.

	 * @return boolean True or false if supported or not.
*/


	 * @return boolean True or false if supported or not.
*/


Zeile 1125Zeile 1180
	/**
* Returns whether or not this database engine supports boolean fulltext matching.
*

	/**
* Returns whether or not this database engine supports boolean fulltext matching.
*

	 * @param string The table to be checked.

	 * @param string $table The table to be checked.

	 * @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

	 * @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

Zeile 1142Zeile 1197
	/**
* Checks to see if an index exists on a specified table
*

	/**
* Checks to see if an index exists on a specified table
*

	 * @param string The name of the table.
* @param string The name of the index.


	 * @param string $table The name of the table.
* @param string $index The name of the index.
* @return bool Returns whether index exists

	 */
function index_exists($table, $index)
{

	 */
function index_exists($table, $index)
{

Zeile 1169Zeile 1225
	/**
* Creates a fulltext index on the specified column in the specified table with optional index name.
*

	/**
* Creates a fulltext index on the specified column in the specified table with optional index name.
*

	 * @param string The name of the table.
* @param string Name of the column to be indexed.
* @param string The index name, optional.

	 * @param string $table The name of the table.
* @param string $column Name of the column to be indexed.
* @param string $name The index name, optional.

	 */
function create_fulltext_index($table, $column, $name="")
{

	 */
function create_fulltext_index($table, $column, $name="")
{

Zeile 1181Zeile 1237
	/**
* Drop an index with the specified name from the specified table
*

	/**
* Drop an index with the specified name from the specified table
*

	 * @param string The name of the table.
* @param string The name of the index.

	 * @param string $table The name of the table.
* @param string $name The name of the index.

	 */
function drop_index($table, $name)
{

	 */
function drop_index($table, $name)
{

Zeile 1192Zeile 1248
	/**
* Drop an table with the specified table
*

	/**
* Drop an table with the specified table
*

	 * @param boolean hard drop - no checking
* @param boolean use table prefix


	 * @param string $table The table to drop
* @param boolean $hard hard drop - no checking
* @param boolean $table_prefix use table prefix

	 */
function drop_table($table, $hard=false, $table_prefix=true)
{

	 */
function drop_table($table, $hard=false, $table_prefix=true)
{

Zeile 1219Zeile 1276
	/**
* Renames a table
*

	/**
* Renames a table
*

	 * @param string The old table name
* @param string the new table name
* @param boolean use table prefix


	 * @param string $old_table The old table name
* @param string $new_table the new table name
* @param boolean $table_prefix use table prefix
* @return mysqli_result

	 */
function rename_table($old_table, $new_table, $table_prefix=true)
{

	 */
function rename_table($old_table, $new_table, $table_prefix=true)
{

Zeile 1240Zeile 1298
	/**
* Replace contents of table with values
*

	/**
* Replace contents of table with values
*

	 * @param string The table
* @param array The replacements




	 * @param string $table The table
* @param array $replacements The replacements
* @param string|array $default_field The default field(s)
* @param boolean $insert_id Whether or not to return an insert id. True by default
* @return mysqli_result|bool

	 */

	 */

	function replace_query($table, $replacements=array())

	function replace_query($table, $replacements=array(), $default_field="", $insert_id=true)

	{
global $mybb;


	{
global $mybb;


Zeile 1262Zeile 1323
			}
else
{

			}
else
{

				$values .= $comma."`".$column."`='".$value."'";

				$values .= $comma."`".$column."`=".$this->quote_val($value);

			}

$comma = ',';

			}

$comma = ',';

Zeile 1279Zeile 1340
	/**
* Drops a column
*

	/**
* Drops a column
*

	 * @param string The table
* @param string The column name


	 * @param string $table The table
* @param string $column The column name
* @return mysqli_result

	 */
function drop_column($table, $column)
{

	 */
function drop_column($table, $column)
{

		return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} DROP {$column}");
}

/**



		$column = trim($column, '`');

return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} DROP `{$column}`");
}

/**

	 * Adds a column

	 * Adds a column

	 *
* @param string The table
* @param string The column name
* @param string the new column definition
*/


	 *
* @param string $table The table
* @param string $column The column name
* @param string $definition the new column definition
* @return mysqli_result
*/

	function add_column($table, $column, $definition)

	function add_column($table, $column, $definition)

	{
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD {$column} {$definition}");
}

/**



	{
$column = trim($column, '`');

return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD `{$column}` {$definition}");
}

/**

	 * Modifies a column

	 * Modifies a column

	 *
* @param string The table
* @param string The column name
* @param string the new column definition
*/
function modify_column($table, $column, $new_definition)




	 *
* @param string $table The table
* @param string $column The column name
* @param string $new_definition the new column definition
* @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false)
* @param boolean|string $new_default_value The new default value, or false to drop the attribute
* @return bool Returns true if all queries are executed successfully or false if one of them failed
*/
function modify_column($table, $column, $new_definition, $new_not_null=false, $new_default_value=false)

	{

	{

		return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} MODIFY {$column} {$new_definition}");
}




























		$column = trim($column, '`');

if($new_not_null !== false)
{
if(strtolower($new_not_null) == "set")
{
$not_null = "NOT NULL";
}
else
{
$not_null = "NULL";
}
}
else
{
$not_null = '';
}

if($new_default_value !== false)
{
$default = "DEFAULT ".$new_default_value;
}
else
{
$default = '';
}

return (bool)$this->write_query("ALTER TABLE {$this->table_prefix}{$table} MODIFY `{$column}` {$new_definition} {$not_null} {$default}");
}


/**
* Renames a column
*


/**
* Renames a column
*

	 * @param string The table
* @param string The old column name
* @param string the new column name
* @param string the new column definition




	 * @param string $table The table
* @param string $old_column The old column name
* @param string $new_column the new column name
* @param string $new_definition the new column definition
* @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false)
* @param boolean|string $new_default_value The new default value, or false to drop the attribute
* @return bool Returns true if all queries are executed successfully

	 */

	 */

	function rename_column($table, $old_column, $new_column, $new_definition)

	function rename_column($table, $old_column, $new_column, $new_definition, $new_not_null=false, $new_default_value=false)

	{

	{

		return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} CHANGE {$old_column} {$new_column} {$new_definition}");





























		$old_column = trim($old_column, '`');
$new_column = trim($new_column, '`');

if($new_not_null !== false)
{
if(strtolower($new_not_null) == "set")
{
$not_null = "NOT NULL";
}
else
{
$not_null = "NULL";
}
}
else
{
$not_null = '';
}

if($new_default_value !== false)
{
$default = "DEFAULT ".$new_default_value;
}
else
{
$default = '';
}

return (bool)$this->write_query("ALTER TABLE {$this->table_prefix}{$table} CHANGE `{$old_column}` `{$new_column}` {$new_definition} {$not_null} {$default}");

	}

/**
* Sets the table prefix used by the simple select, insert, update and delete functions
*

	}

/**
* Sets the table prefix used by the simple select, insert, update and delete functions
*

	 * @param string The new table prefix

	 * @param string $prefix The new table prefix

	 */
function set_table_prefix($prefix)
{

	 */
function set_table_prefix($prefix)
{

Zeile 1337Zeile 1465
	/**
* Fetched the total size of all mysql tables or a specific table
*

	/**
* Fetched the total size of all mysql tables or a specific table
*

	 * @param string The table (optional)

	 * @param string $table The table (optional)

	 * @return integer the total size of all mysql tables or a specific table
*/
function fetch_size($table='')

	 * @return integer the total size of all mysql tables or a specific table
*/
function fetch_size($table='')

Zeile 1361Zeile 1489
	/**
* Fetch a list of database character sets this DBMS supports
*

	/**
* Fetch a list of database character sets this DBMS supports
*

	 * @return array Array of supported character sets with array key being the name, array value being display name. False if unsupported

	 * @return array|bool Array of supported character sets with array key being the name, array value being display name. False if unsupported

	 */
function fetch_db_charsets()
{

	 */
function fetch_db_charsets()
{

Zeile 1375Zeile 1503
			'cp850' => 'DOS West European',
'hp8' => 'HP West European',
'koi8r' => 'KOI8-R Relcom Russian',

			'cp850' => 'DOS West European',
'hp8' => 'HP West European',
'koi8r' => 'KOI8-R Relcom Russian',

			'latin1' => 'cp1252 West European',

			'latin1' => 'ISO 8859-1 Latin 1',

			'latin2' => 'ISO 8859-2 Central European',
'swe7' => '7bit Swedish',
'ascii' => 'US ASCII',

			'latin2' => 'ISO 8859-2 Central European',
'swe7' => '7bit Swedish',
'ascii' => 'US ASCII',

Zeile 1403Zeile 1531
			'cp1251' => 'Windows Cyrillic',
'cp1256' => 'Windows Arabic',
'cp1257' => 'Windows Baltic',

			'cp1251' => 'Windows Cyrillic',
'cp1256' => 'Windows Arabic',
'cp1257' => 'Windows Baltic',

			'binary' => 'Binary pseudo charset',

 
			'geostd8' => 'GEOSTD8 Georgian',
'cp932' => 'SJIS for Windows Japanese',
'eucjpms' => 'UJIS for Windows Japanese',

			'geostd8' => 'GEOSTD8 Georgian',
'cp932' => 'SJIS for Windows Japanese',
'eucjpms' => 'UJIS for Windows Japanese',

Zeile 1413Zeile 1540
	/**
* Fetch a database collation for a particular database character set
*

	/**
* Fetch a database collation for a particular database character set
*

	 * @param string The database character set
* @return string The matching database collation, false if unsupported

	 * @param string $charset The database character set
* @return string|bool The matching database collation, false if unsupported

	 */
function fetch_charset_collation($charset)
{

	 */
function fetch_charset_collation($charset)
{

Zeile 1452Zeile 1579
			'cp1251' => 'cp1251_general_ci',
'cp1256' => 'cp1256_general_ci',
'cp1257' => 'cp1257_general_ci',

			'cp1251' => 'cp1251_general_ci',
'cp1256' => 'cp1256_general_ci',
'cp1257' => 'cp1257_general_ci',

			'binary' => 'binary',

 
			'geostd8' => 'geostd8_general_ci',
'cp932' => 'cp932_japanese_ci',
'eucjpms' => 'eucjpms_japanese_ci',

			'geostd8' => 'geostd8_general_ci',
'cp932' => 'cp932_japanese_ci',
'eucjpms' => 'eucjpms_japanese_ci',

Zeile 1497Zeile 1623
	/**
* Binary database fields require special attention.
*

	/**
* Binary database fields require special attention.
*

	 * @param string Binary value

	 * @param string $string Binary value

	 * @return string Encoded binary value
*/
function escape_binary($string)

	 * @return string Encoded binary value
*/
function escape_binary($string)

Zeile 1508Zeile 1634
	/**
* Unescape binary data.
*

	/**
* Unescape binary data.
*

	 * @param string Binary value

	 * @param string $string Binary value

	 * @return string Encoded binary value
*/
function unescape_binary($string)

	 * @return string Encoded binary value
*/
function unescape_binary($string)