| Zeile 55 | Zeile 55 |
|---|
/**
* 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.
| * 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 89 | Zeile 96 |
|---|
/**
* 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";
/**
|
| Zeile 139 | Zeile 146 |
|---|
/**
* 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)
{
| */
function connect($config)
{
|
| Zeile 165 | Zeile 172 |
|---|
}
// Specified both read & write servers
else
|
}
// Specified both read & write servers
else
|
{
| {
|
$connections = $config;
}
}
| $connections = $config;
}
}
|
| Zeile 201 | Zeile 208 |
|---|
}
$link = "{$type}_link";
|
}
$link = "{$type}_link";
|
|
|
get_execution_time();
|
get_execution_time();
|
|
|
// Specified a custom port for this connection?
$port = 0;
if(strstr($single_connection['hostname'],':'))
|
// Specified a custom port for this connection?
$port = 0;
if(strstr($single_connection['hostname'],':'))
|
{
| {
|
list($hostname, $port) = explode(":", $single_connection['hostname'], 2);
|
list($hostname, $port) = explode(":", $single_connection['hostname'], 2);
|
}
| }
|
if($port)
{
|
if($port)
{
|
| Zeile 218 | Zeile 225 |
|---|
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 240 | Zeile 247 |
|---|
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)
|
| Zeile 268 | Zeile 275 |
|---|
/**
* 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)
|
| Zeile 283 | Zeile 290 |
|---|
$success = ($master_success && $slave_success ? true : false);
}
else
|
$success = ($master_success && $slave_success ? true : false);
}
else
|
{
| {
|
$success = $master_success;
}
| $success = $master_success;
}
|
| Zeile 302 | Zeile 309 |
|---|
/**
* 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();
|
| Zeile 354 | Zeile 361 |
|---|
/**
* 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)
{
|
| Zeile 366 | Zeile 373 |
|---|
/**
* 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 443 | Zeile 450 |
|---|
/**
* 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 467 | Zeile 474 |
|---|
/**
* 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)
{
|
| Zeile 484 | Zeile 491 |
|---|
/**
* 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, $row)
{
| */
function data_seek($query, $row)
{
|
| Zeile 495 | Zeile 503 |
|---|
/**
* 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 $query The query data.
|
* @return int The number of rows in the result.
*/
function num_rows($query)
| * @return int The number of rows in the result.
*/
function num_rows($query)
|
| Zeile 524 | Zeile 532 |
|---|
if($this->write_link)
{
@mysqli_close($this->write_link);
|
if($this->write_link)
{
@mysqli_close($this->write_link);
|
}
}
| }
}
|
/**
* Return an error number.
*
| /**
* Return an error number.
*
|
| Zeile 541 | Zeile 549 |
|---|
else
{
return mysqli_connect_errno();
|
else
{
return mysqli_connect_errno();
|
}
}
| }
}
|
/**
* Return an error string.
|
/**
* Return an error string.
|
| Zeile 564 | Zeile 572 |
|---|
/**
* 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="")
{
| */
function error($string="")
{
|
| Zeile 591 | Zeile 600 |
|---|
{
trigger_error("<strong>[SQL] [".$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 611 | Zeile 622 |
|---|
/**
* 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 int The number of fields.
*/
function num_fields($query)
|
| Zeile 621 | Zeile 632 |
|---|
/**
* 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) = 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 673 | Zeile 703 |
|---|
/**
* 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 699 | Zeile 729 |
|---|
/**
* 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 718 | Zeile 748 |
|---|
/**
* 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 762 | Zeile 792 |
|---|
/**
* 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 805 | Zeile 835 |
|---|
/**
* 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, $array)
{
|
| Zeile 815 | Zeile 845 |
|---|
if(!is_array($array))
{
|
if(!is_array($array))
{
|
return false;
| return;
|
}
// Field names
$fields = array_keys($array[0]);
| }
// Field names
$fields = array_keys($array[0]);
|
| Zeile 854 | Zeile 884 |
|---|
/**
* 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 915 | Zeile 945 |
|---|
");
}
|
");
}
|
| | /**
* @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 932 | Zeile 968 |
|---|
/**
* 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 954 | Zeile 990 |
|---|
/**
* 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 982 | Zeile 1018 |
|---|
/**
* 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)
|
| Zeile 1013 | Zeile 1050 |
|---|
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 1032 | Zeile 1065 |
|---|
/**
* 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 1042 | Zeile 1075 |
|---|
/**
* 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 1052 | Zeile 1085 |
|---|
/**
* 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 1066 | Zeile 1099 |
|---|
/**
* 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 1082 | Zeile 1116 |
|---|
/**
* 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 1110 | Zeile 1144 |
|---|
/**
* 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 1134 | Zeile 1168 |
|---|
/**
* 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 1151 | Zeile 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 $index The name of the index.
* @return bool Returns whether index exists
|
*/
function index_exists($table, $index)
{
| */
function index_exists($table, $index)
{
|
| Zeile 1178 | Zeile 1213 |
|---|
/**
* 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 1190 | Zeile 1225 |
|---|
/**
* 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 1201 | Zeile 1236 |
|---|
/**
* 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 1228 | Zeile 1264 |
|---|
/**
* 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 1249 | Zeile 1286 |
|---|
/**
* 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 1288 | Zeile 1328 |
|---|
/**
* 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 !== null)
{
$default = "DEFAULT ".$new_default_value;
}
else
{
$default = '';
}
return (bool)$this->write_query("ALTER TABLE {$this->table_prefix}{$table} MODIFY `{$column}` {$new_definition} {$not_null}");
}
|
/**
* 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 1346 | Zeile 1453 |
|---|
/**
* 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 1370 | Zeile 1477 |
|---|
/**
* 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 1384 | Zeile 1491 |
|---|
'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 1412 | Zeile 1519 |
|---|
'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 1422 | Zeile 1528 |
|---|
/**
* 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 1461 | Zeile 1567 |
|---|
'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 1506 | Zeile 1611 |
|---|
/**
* 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 1517 | Zeile 1622 |
|---|
/**
* 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)
|