Vergleich inc/db_mysql.php - 1.8.5 - 1.8.8

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Zeile 72Zeile 72
	 * @var resource
	 */
	public $current_link;

 
	 * @var resource
	 */
	public $current_link;

 

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


	/**
	 * Explanation of a query.


	/**
	 * Explanation of a query.

Zeile 140Zeile 147
	/**
	 * Connect to the database server.
	 *

 
	/**
	 * Connect to the database server.
	 *

	 * @param array Array of DBMS connection details.

	 * @param array $config Array of DBMS connection details.

	 * @return resource The DB connection resource. Returns false on fail or -1 on a db connect failure.
	 */
	function connect($config)

	 * @return resource The DB connection resource. Returns false on fail or -1 on a db connect failure.
	 */
	function connect($config)

Zeile 254Zeile 261
	/**
	 * 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;


		$this->current_link = &$this->read_link;
		$read_success = @mysql_select_db($database, $this->read_link) or $this->error("[READ] Unable to select database", $this->read_link);


		$this->current_link = &$this->read_link;
		$read_success = @mysql_select_db($database, $this->read_link) or $this->error("[READ] Unable to select database", $this->read_link);

Zeile 302Zeile 309
	/**
	 * Query the database.
	 *

 
	/**
	 * Query the database.
	 *

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

	 * @param string $string The query SQL.
	 * @param integer $hide_errors 1 if hide errors, 0 if not.
	 * @param integer $write_query 1 if executes on master database, 0 if not.

	 * @return resource The query data.
	 */
	function query($string, $hide_errors=0, $write_query=0)
	{

 
	 * @return resource The query data.
	 */
	function query($string, $hide_errors=0, $write_query=0)
	{

		global $pagestarttime, $db, $mybb;

		global $mybb;


		get_execution_time();



		get_execution_time();


Zeile 318Zeile 325
		{
			$this->current_link = &$this->write_link;
			$query = @mysql_query($string, $this->write_link);

 
		{
			$this->current_link = &$this->write_link;
			$query = @mysql_query($string, $this->write_link);

		}

		}

		else
		{
			$this->current_link = &$this->read_link;

		else
		{
			$this->current_link = &$this->read_link;

Zeile 355Zeile 362
	/**
	 * 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.

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

	 * @return resource The query data.
	 */
	function write_query($query, $hide_errors=0)
	{
		return $this->query($query, $hide_errors, 1);
	}

 
	 * @return resource The query data.
	 */
	function write_query($query, $hide_errors=0)
	{
		return $this->query($query, $hide_errors, 1);
	}





	/**
	 * 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 382Zeile 389
		if(preg_match("#^\s*select#i", $string))
		{
			$query = mysql_query("EXPLAIN $string", $this->current_link);

 
		if(preg_match("#^\s*select#i", $string))
		{
			$query = mysql_query("EXPLAIN $string", $this->current_link);

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

				"<tr>\n".
				"<td colspan=\"8\" style=\"background-color: #ccc;\">{$debug_extra}<div><strong>#".$this->query_count." - Select Query</strong></div></td>\n".
				"</tr>\n".

				"<tr>\n".
				"<td colspan=\"8\" style=\"background-color: #ccc;\">{$debug_extra}<div><strong>#".$this->query_count." - Select Query</strong></div></td>\n".
				"</tr>\n".

Zeile 444Zeile 451
	/**
	 * Return a result array for a query.
	 *

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

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

	 * @param resource $query The query ID.
	 * @param int $resulttype The type of array to return. Either MYSQL_NUM, MYSQL_BOTH or MYSQL_ASSOC

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

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

Zeile 468Zeile 475
	/**
	 * 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 resource $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.
	 * @return mixed

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

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

Zeile 488Zeile 496
	/**
	 * 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 resource $query The query ID.
	 * @param int $row The pointer to move the row to.
	 * @return bool

	 */
	function data_seek($query, $row)
	{

	 */
	function data_seek($query, $row)
	{

Zeile 499Zeile 508
	/**
	 * Return the number of rows resulting from a query.
	 *

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

	 * @param resource The query ID.

	 * @param resource $query The query ID.

	 * @return int The number of rows in the result.
	 */
	function num_rows($query)

	 * @return int The number of rows in the result.
	 */
	function num_rows($query)

Zeile 567Zeile 576
	/**
	 * 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 Returns false if error reporting is disabled, otherwise true

	 */
	function error($string="")
	{

	 */
	function error($string="")
	{

Zeile 589Zeile 599
					"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
		{
			return false;

 
		}
		else
		{
			return false;

		}

		}

	}

	/**

	}

	/**

Zeile 614Zeile 626
	/**
	 * Return the number of fields.
	 *

 
	/**
	 * Return the number of fields.
	 *

	 * @param resource The query ID.

	 * @param resource $query The query ID.

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

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

Zeile 625Zeile 637
	/**
	 * Lists all tables in the database.
	 *

 
	/**
	 * Lists all tables in the database.
	 *

	 * @param string The database name.
	 * @param string Prefix of the table (optional)

	 * @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($table) = mysql_fetch_array($query))
		{
			$tables[] = $table;

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

		}

		return $tables;

		}

		return $tables;

Zeile 652Zeile 678
	/**
	 * Check if a table exists in a database.
	 *

 
	/**
	 * 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'
		");






		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)
		{

		$exists = $this->num_rows($query);
		if($exists > 0)
		{

Zeile 676Zeile 707
	/**
	 * 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 701Zeile 732
	/**
	 * Add a shutdown query.
	 *

 
	/**
	 * Add a shutdown query.
	 *

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

	 * @param resource $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 719Zeile 750
	/**
	 * 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.

	 * @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 resource The query data.
	 */
	function simple_select($table, $fields="*", $conditions="", $options=array())

	 * @return resource The query data.
	 */
	function simple_select($table, $fields="*", $conditions="", $options=array())

Zeile 762Zeile 793
	/**
	 * 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 805Zeile 836
	/**
	 * 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)

	{

	{

		global $mybb;

 
		global $mybb;





		if(!is_array($array))
		{

 
		if(!is_array($array))
		{

			return false;

			return;

		}

 
		}

 


		// Field names
		$fields = array_keys($array[0]);
		$fields = "`".implode("`,`", $fields)."`";

		$insert_rows = array();
		foreach($array as $values)

 
		// Field names
		$fields = array_keys($array[0]);
		$fields = "`".implode("`,`", $fields)."`";

		$insert_rows = array();
		foreach($array as $values)

		{

		{

			foreach($values as $field => $value)
			{
				if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])

			foreach($values as $field => $value)
			{
				if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])

Zeile 848Zeile 880
			INSERT
			INTO {$this->table_prefix}{$table} ({$fields})
			VALUES {$insert_rows}

 
			INSERT
			INTO {$this->table_prefix}{$table} ({$fields})
			VALUES {$insert_rows}

		");

		");

	}

	/**
	 * 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.

	 * @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 resource The query data.
	 */
	function update_query($table, $array, $where="", $limit="", $no_quote=false)

	 * @return resource The query data.
	 */
	function update_query($table, $array, $where="", $limit="", $no_quote=false)

Zeile 877Zeile 909
		if($no_quote == true)
		{
			$quote = "";

 
		if($no_quote == true)
		{
			$quote = "";

		}

		}


		foreach($array as $field => $value)
		{


		foreach($array as $field => $value)
		{

Zeile 902Zeile 934
		if(!empty($where))
		{
			$query .= " WHERE $where";

 
		if(!empty($where))
		{
			$query .= " WHERE $where";

		}

		}


		if(!empty($limit))
		{
			$query .= " LIMIT $limit";
		}

 

		if(!empty($limit))
		{
			$query .= " LIMIT $limit";
		}





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


 
		return $this->write_query("
			UPDATE {$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))

	private function quote_val($value, $quote="'")
	{
		if(is_int($value))

Zeile 932Zeile 970
	/**
	 * 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.

	 * @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 resource The query data.
	 */
	function delete_query($table, $where="", $limit="")

	 * @return resource The query data.
	 */
	function delete_query($table, $where="", $limit="")

Zeile 960Zeile 998
	/**
	 * 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 988Zeile 1026
	/**
	 * Frees the resources of a MySQLi query.
	 *

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

	 * @param object The query to destroy.

	 * @param resource $query The query to destroy.

	 * @return boolean Returns true on success, false on faliure
	 */
	function free_result($query)

	 * @return boolean Returns true on success, false on faliure
	 */
	function free_result($query)

Zeile 999Zeile 1037
	/**
	 * 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)

Zeile 1038Zeile 1076
	/**
	 * 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 1048Zeile 1086
	/**
	 * 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 1058Zeile 1096
	/**
	 * 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 1071Zeile 1109
	/**
	 * 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 1087Zeile 1126
	/**
	 * 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 1115Zeile 1154
	/**
	 * 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 1146Zeile 1185
	/**
	 * 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 Whether or not the index exists in that table

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

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

Zeile 1173Zeile 1213
	/**
	 * 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 1190Zeile 1230
	/**
	 * 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 1205Zeile 1245
	/**
	 * 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 1219Zeile 1259
	/**
	 * 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 1246Zeile 1287
	/**
	 * 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 resource

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

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

Zeile 1267Zeile 1309
	/**
	 * 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
	 * @return resource|bool

	 */
	function replace_query($table, $replacements=array())
	{

	 */
	function replace_query($table, $replacements=array())
	{

Zeile 1306Zeile 1349
	/**
	 * 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 resource

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

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

Zeile 1317Zeile 1361
	/**
	 * 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 resource

	 */
	function add_column($table, $column, $definition)
	{

	 */
	function add_column($table, $column, $definition)
	{

Zeile 1329Zeile 1374
	/**
	 * Modifies a column
	 *

 
	/**
	 * Modifies 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 $new_definition the new column definition
	 * @return resource

	 */
	function modify_column($table, $column, $new_definition)
	{

	 */
	function modify_column($table, $column, $new_definition)
	{

Zeile 1341Zeile 1387
	/**
	 * 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
	 * @return resource

	 */
	function rename_column($table, $old_column, $new_column, $new_definition)
	{

	 */
	function rename_column($table, $old_column, $new_column, $new_definition)
	{

Zeile 1354Zeile 1401
	/**
	 * 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 1364Zeile 1411
	/**
	 * 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 1388Zeile 1435
	/**
	 * 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 1402Zeile 1449
			'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 1440Zeile 1487
	/**
	 * 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 1524Zeile 1571
	/**
	 * 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 1535Zeile 1582
	/**
	 * 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)