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- <?php
- /* vim: set expandtab tabstop=4 shiftwidth=4 foldmethod=marker: */
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2004 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Author: Daniel Convissor <danielc@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: mysqli.php,v 1.31 2004/07/12 17:51:24 danielc Exp $
-
-
- // EXPERIMENTAL
-
-
- require_once 'DB/common.php';
-
- /**
- * Database independent query interface definition for PHP's mysqli
- * extension.
- *
- * This is for MySQL versions 4.1 and above. Requires PHP 5.
- *
- * Note that persistent connections no longer exist.
- *
- * @package DB
- * @version $Id: mysqli.php,v 1.31 2004/07/12 17:51:24 danielc Exp $
- * @category Database
- * @author Daniel Convissor <danielc@php.net>
- * @since Class functional since Release 1.6.3
- */
- class DB_mysqli extends DB_common
- {
- // {{{ properties
-
- var $connection;
- var $phptype, $dbsyntax;
- var $prepare_tokens = array();
- var $prepare_types = array();
- var $num_rows = array();
- var $transaction_opcount = 0;
- var $autocommit = true;
- var $fetchmode = DB_FETCHMODE_ORDERED; /* Default fetch mode */
- var $_db = false;
-
- /**
- * Array for converting MYSQLI_*_FLAG constants to text values
- * @var array
- * @access public
- * @since Property available since Release 1.6.5
- */
- var $mysqli_flags = array(
- MYSQLI_NOT_NULL_FLAG => 'not_null',
- MYSQLI_PRI_KEY_FLAG => 'primary_key',
- MYSQLI_UNIQUE_KEY_FLAG => 'unique_key',
- MYSQLI_MULTIPLE_KEY_FLAG => 'multiple_key',
- MYSQLI_BLOB_FLAG => 'blob',
- MYSQLI_UNSIGNED_FLAG => 'unsigned',
- MYSQLI_ZEROFILL_FLAG => 'zerofill',
- MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment',
- MYSQLI_TIMESTAMP_FLAG => 'timestamp',
- MYSQLI_SET_FLAG => 'set',
- // MYSQLI_NUM_FLAG => 'numeric', // unnecessary
- // MYSQLI_PART_KEY_FLAG => 'multiple_key', // duplicatvie
- MYSQLI_GROUP_FLAG => 'group_by'
- );
-
- /**
- * Array for converting MYSQLI_TYPE_* constants to text values
- * @var array
- * @access public
- * @since Property available since Release 1.6.5
- */
- var $mysqli_types = array(
- MYSQLI_TYPE_DECIMAL => 'decimal',
- MYSQLI_TYPE_TINY => 'tinyint',
- MYSQLI_TYPE_SHORT => 'int',
- MYSQLI_TYPE_LONG => 'int',
- MYSQLI_TYPE_FLOAT => 'float',
- MYSQLI_TYPE_DOUBLE => 'double',
- // MYSQLI_TYPE_NULL => 'DEFAULT NULL', // let flags handle it
- MYSQLI_TYPE_TIMESTAMP => 'timestamp',
- MYSQLI_TYPE_LONGLONG => 'bigint',
- MYSQLI_TYPE_INT24 => 'mediumint',
- MYSQLI_TYPE_DATE => 'date',
- MYSQLI_TYPE_TIME => 'time',
- MYSQLI_TYPE_DATETIME => 'datetime',
- MYSQLI_TYPE_YEAR => 'year',
- MYSQLI_TYPE_NEWDATE => 'date',
- MYSQLI_TYPE_ENUM => 'enum',
- MYSQLI_TYPE_SET => 'set',
- MYSQLI_TYPE_TINY_BLOB => 'tinyblob',
- MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob',
- MYSQLI_TYPE_LONG_BLOB => 'longblob',
- MYSQLI_TYPE_BLOB => 'blob',
- MYSQLI_TYPE_VAR_STRING => 'varchar',
- MYSQLI_TYPE_STRING => 'char',
- MYSQLI_TYPE_GEOMETRY => 'geometry',
- );
-
- // }}}
- // {{{ constructor
-
- /**
- * DB_mysql constructor.
- *
- * @access public
- */
- function DB_mysqli()
- {
- $this->DB_common();
- $this->phptype = 'mysqli';
- $this->dbsyntax = 'mysqli';
- $this->features = array(
- 'prepare' => false,
- 'ssl' => true,
- 'transactions' => true,
- 'limit' => 'alter'
- );
- $this->errorcode_map = array(
- 1004 => DB_ERROR_CANNOT_CREATE,
- 1005 => DB_ERROR_CANNOT_CREATE,
- 1006 => DB_ERROR_CANNOT_CREATE,
- 1007 => DB_ERROR_ALREADY_EXISTS,
- 1008 => DB_ERROR_CANNOT_DROP,
- 1022 => DB_ERROR_ALREADY_EXISTS,
- 1046 => DB_ERROR_NODBSELECTED,
- 1048 => DB_ERROR_CONSTRAINT,
- 1050 => DB_ERROR_ALREADY_EXISTS,
- 1051 => DB_ERROR_NOSUCHTABLE,
- 1054 => DB_ERROR_NOSUCHFIELD,
- 1062 => DB_ERROR_ALREADY_EXISTS,
- 1064 => DB_ERROR_SYNTAX,
- 1100 => DB_ERROR_NOT_LOCKED,
- 1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
- 1146 => DB_ERROR_NOSUCHTABLE,
- 1216 => DB_ERROR_CONSTRAINT,
- 1217 => DB_ERROR_CONSTRAINT,
- );
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to a database and log in as the specified user.
- *
- * @param string $dsn the data source name (see DB::parseDSN for syntax)
- * @param boolean $persistent (optional) whether the connection should
- * be persistent
- * @return mixed DB_OK on success, a DB error on failure
- * @access public
- */
- function connect($dsninfo, $persistent = false)
- {
- if (!DB::assertExtension('mysqli')) {
- return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
- }
-
- $this->dsn = $dsninfo;
- $conn = false;
- @ini_set('track_errors', true);
-
- if ($this->getOption('ssl') === true) {
- $init = mysqli_init();
- mysqli_ssl_set(
- $init,
- empty($dsninfo['key']) ? null : $dsninfo['key'],
- empty($dsninfo['cert']) ? null : $dsninfo['cert'],
- empty($dsninfo['ca']) ? null : $dsninfo['ca'],
- empty($dsninfo['capath']) ? null : $dsninfo['capath'],
- empty($dsninfo['cipher']) ? null : $dsninfo['cipher']
- );
- if ($conn = @mysqli_real_connect($init,
- $dsninfo['hostspec'],
- $dsninfo['username'],
- $dsninfo['password'],
- $dsninfo['database'],
- $dsninfo['port'],
- $dsninfo['socket']))
- {
- $conn = $init;
- }
- } else {
- $conn = @mysqli_connect(
- $dsninfo['hostspec'],
- $dsninfo['username'],
- $dsninfo['password'],
- $dsninfo['database'],
- $dsninfo['port'],
- $dsninfo['socket']
- );
- }
-
- @ini_restore('track_errors');
-
- if (!$conn) {
- if (($err = @mysqli_connect_error()) != '') {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED, null, null,
- null, $err);
- } elseif (empty($php_errormsg)) {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED);
- } else {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED, null, null,
- null, $php_errormsg);
- }
- }
-
- if ($dsninfo['database']) {
- $this->_db = $dsninfo['database'];
- }
-
- $this->connection = $conn;
- return DB_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Log out and disconnect from the database.
- *
- * @return boolean true on success, false if not connected
- * @access public
- */
- function disconnect()
- {
- $ret = @mysqli_close($this->connection);
- $this->connection = null;
- return $ret;
- }
-
- // }}}
- // {{{ simpleQuery()
-
- /**
- * Send a query to MySQL and return the results as a MySQL resource
- * identifier.
- *
- * @param string $query the SQL query
- * @return mixed a valid MySQL result for successful SELECT
- * queries, DB_OK for other successful queries.
- * A DB error is returned on failure.
- * @access public
- */
- function simpleQuery($query)
- {
- $ismanip = DB::isManip($query);
- $this->last_query = $query;
- $query = $this->modifyQuery($query);
- if ($this->_db) {
- if (!@mysqli_select_db($this->connection, $this->_db)) {
- return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- }
- if (!$this->autocommit && $ismanip) {
- if ($this->transaction_opcount == 0) {
- $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=0');
- $result = @mysqli_query($this->connection, 'BEGIN');
- if (!$result) {
- return $this->mysqlRaiseError();
- }
- }
- $this->transaction_opcount++;
- }
- $result = @mysqli_query($this->connection, $query);
- if (!$result) {
- return $this->mysqlRaiseError();
- }
- # this next block is still sketchy..
- if (is_object($result)) {
- $numrows = $this->numrows($result);
- if (is_object($numrows)) {
- return $numrows;
- }
- # need to come up with different means for next line
- # since $result is object (int)$result won't fly...
- // $this->num_rows[(int)$result] = $numrows;
- return $result;
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ nextResult()
-
- /**
- * Move the internal mysql result pointer to the next available result.
- *
- * This method has not been implemented yet.
- *
- * @param resource $result a valid sql result resource
- * @return false
- * @access public
- */
- function nextResult($result)
- {
- return false;
- }
-
- // }}}
- // {{{ fetchInto()
-
- /**
- * Fetch a row and insert the data into an existing array.
- *
- * Formating of the array and the data therein are configurable.
- * See DB_result::fetchInto() for more information.
- *
- * @param resource $result query result identifier
- * @param array $arr (reference) array where data from the row
- * should be placed
- * @param int $fetchmode how the resulting array should be indexed
- * @param int $rownum the row number to fetch
- *
- * @return mixed DB_OK on success, null when end of result set is
- * reached or on failure
- *
- * @see DB_result::fetchInto()
- * @access private
- */
- function fetchInto($result, &$arr, $fetchmode, $rownum=null)
- {
- if ($rownum !== null) {
- if (!@mysqli_data_seek($result, $rownum)) {
- return null;
- }
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $arr = @mysqli_fetch_array($result, MYSQLI_ASSOC);
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- } else {
- $arr = @mysqli_fetch_row($result);
- }
- if (!$arr) {
- $errno = @mysqli_errno($this->connection);
- if (!$errno) {
- return null;
- }
- return $this->mysqlRaiseError($errno);
- }
- if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
- /*
- * Even though this DBMS already trims output, we do this because
- * a field might have intentional whitespace at the end that
- * gets removed by DB_PORTABILITY_RTRIM under another driver.
- */
- $this->_rtrimArrayValues($arr);
- }
- if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
- $this->_convertNullArrayValuesToEmpty($arr);
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ freeResult()
-
- /**
- * Free the internal resources associated with $result.
- *
- * @param resource $result MySQL result identifier
- * @return bool true on success, false if $result is invalid
- * @access public
- */
- function freeResult($result)
- {
- # need to come up with different means for next line
- # since $result is object (int)$result won't fly...
- // unset($this->num_rows[(int)$result]);
- return @mysqli_free_result($result);
- }
-
- // }}}
- // {{{ numCols()
-
- /**
- * Get the number of columns in a result set.
- *
- * @param $result MySQL result identifier
- *
- * @access public
- *
- * @return int the number of columns per row in $result
- */
- function numCols($result)
- {
- $cols = @mysqli_num_fields($result);
-
- if (!$cols) {
- return $this->mysqlRaiseError();
- }
-
- return $cols;
- }
-
- // }}}
- // {{{ numRows()
-
- /**
- * Get the number of rows in a result set.
- *
- * @param resource $result MySQL result identifier
- * @return int the number of rows in $result
- * @access public
- */
- function numRows($result)
- {
- $rows = @mysqli_num_rows($result);
- if ($rows === null) {
- return $this->mysqlRaiseError();
- }
- return $rows;
- }
-
- // }}}
- // {{{ autoCommit()
-
- /**
- * Enable/disable automatic commits.
- */
- function autoCommit($onoff = false)
- {
- // XXX if $this->transaction_opcount > 0, we should probably
- // issue a warning here.
- $this->autocommit = $onoff ? true : false;
- return DB_OK;
- }
-
- // }}}
- // {{{ commit()
-
- /**
- * Commit the current transaction.
- */
- function commit()
- {
- if ($this->transaction_opcount > 0) {
- if ($this->_db) {
- if (!@mysqli_select_db($this->connection, $this->_db)) {
- return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- }
- $result = @mysqli_query($this->connection, 'COMMIT');
- $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->mysqlRaiseError();
- }
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Roll back (undo) the current transaction.
- */
- function rollback()
- {
- if ($this->transaction_opcount > 0) {
- if ($this->_db) {
- if (!@mysqli_select_db($this->connection, $this->_db)) {
- return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- }
- $result = @mysqli_query($this->connection, 'ROLLBACK');
- $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->mysqlRaiseError();
- }
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ affectedRows()
-
- /**
- * Gets the number of rows affected by the data manipulation
- * query. For other queries, this function returns 0.
- *
- * @return integer number of rows affected by the last query
- */
- function affectedRows()
- {
- if (DB::isManip($this->last_query)) {
- return @mysqli_affected_rows($this->connection);
- } else {
- return 0;
- }
- }
-
- // }}}
- // {{{ errorNative()
-
- /**
- * Get the native error code of the last error (if any) that
- * occured on the current connection.
- *
- * @return int native MySQL error code
- * @access public
- */
- function errorNative()
- {
- return @mysqli_errno($this->connection);
- }
-
- // }}}
- // {{{ nextId()
-
- /**
- * Returns the next free id in a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true, the seqence is automatically
- * created if it does not exist
- *
- * @return int the next id number in the sequence. DB_Error if problem.
- *
- * @internal
- * @see DB_common::nextID()
- * @access public
- */
- function nextId($seq_name, $ondemand = true)
- {
- $seqname = $this->getSequenceName($seq_name);
- do {
- $repeat = 0;
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $result = $this->query("UPDATE ${seqname} ".
- 'SET id=LAST_INSERT_ID(id+1)');
- $this->popErrorHandling();
- if ($result === DB_OK) {
- /** COMMON CASE **/
- $id = @mysqli_insert_id($this->connection);
- if ($id != 0) {
- return $id;
- }
- /** EMPTY SEQ TABLE **/
- // Sequence table must be empty for some reason, so fill it and return 1
- // Obtain a user-level lock
- $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- if ($result == 0) {
- // Failed to get the lock, bail with a DB_ERROR_NOT_LOCKED error
- return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
- }
-
- // add the default value
- $result = $this->query("REPLACE INTO ${seqname} (id) VALUES (0)");
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
-
- // Release the lock
- $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- // We know what the result will be, so no need to try again
- return 1;
-
- /** ONDEMAND TABLE CREATION **/
- } elseif ($ondemand && DB::isError($result) &&
- $result->getCode() == DB_ERROR_NOSUCHTABLE)
- {
- $result = $this->createSequence($seq_name);
- // Since createSequence initializes the ID to be 1,
- // we do not need to retrieve the ID again (or we will get 2)
- if (DB::isError($result)) {
- return $this->raiseError($result);
- } else {
- // First ID of a newly created sequence is 1
- return 1;
- }
-
- /** BACKWARDS COMPAT **/
- } elseif (DB::isError($result) &&
- $result->getCode() == DB_ERROR_ALREADY_EXISTS)
- {
- // see _BCsequence() comment
- $result = $this->_BCsequence($seqname);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- $repeat = 1;
- }
- } while ($repeat);
-
- return $this->raiseError($result);
- }
-
- /**
- * Creates a new sequence
- *
- * @param string $seq_name name of the new sequence
- *
- * @return int DB_OK on success. A DB_Error object is returned if
- * problems arise.
- *
- * @internal
- * @see DB_common::createSequence()
- * @access public
- */
- function createSequence($seq_name)
- {
- $seqname = $this->getSequenceName($seq_name);
- $res = $this->query("CREATE TABLE ${seqname} ".
- '(id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'.
- ' PRIMARY KEY(id))');
- if (DB::isError($res)) {
- return $res;
- }
- // insert yields value 1, nextId call will generate ID 2
- return $this->query("INSERT INTO ${seqname} (id) VALUES (0)");
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * Deletes a sequence
- *
- * @param string $seq_name name of the sequence to be deleted
- *
- * @return int DB_OK on success. DB_Error if problems.
- *
- * @internal
- * @see DB_common::dropSequence()
- * @access public
- */
- function dropSequence($seq_name)
- {
- return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
- }
-
- // }}}
- // {{{ _BCsequence()
-
- /**
- * Backwards compatibility with old sequence emulation implementation
- * (clean up the dupes).
- *
- * @param string $seqname The sequence name to clean up
- * @return mixed DB_Error or true
- */
- function _BCsequence($seqname)
- {
- // Obtain a user-level lock... this will release any previous
- // application locks, but unlike LOCK TABLES, it does not abort
- // the current transaction and is much less frequently used.
- $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
- if (DB::isError($result)) {
- return $result;
- }
- if ($result == 0) {
- // Failed to get the lock, can't do the conversion, bail
- // with a DB_ERROR_NOT_LOCKED error
- return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
- }
-
- $highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}");
- if (DB::isError($highest_id)) {
- return $highest_id;
- }
- // This should kill all rows except the highest
- // We should probably do something if $highest_id isn't
- // numeric, but I'm at a loss as how to handle that...
- $result = $this->query("DELETE FROM ${seqname} WHERE id <> $highest_id");
- if (DB::isError($result)) {
- return $result;
- }
-
- // If another thread has been waiting for this lock,
- // it will go thru the above procedure, but will have no
- // real effect
- $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
- if (DB::isError($result)) {
- return $result;
- }
- return true;
- }
-
- // }}}
- // {{{ quoteIdentifier()
-
- /**
- * Quote a string so it can be safely used as a table or column name
- *
- * Quoting style depends on which database driver is being used.
- *
- * MySQL can't handle the backtick character (<kbd>`</kbd>) in
- * table or column names.
- *
- * @param string $str identifier name to be quoted
- *
- * @return string quoted identifier string
- *
- * @since 1.6.0
- * @access public
- * @internal
- */
- function quoteIdentifier($str)
- {
- return '`' . $str . '`';
- }
-
- // }}}
- // {{{ escapeSimple()
-
- /**
- * Escape a string according to the current DBMS's standards
- *
- * @param string $str the string to be escaped
- *
- * @return string the escaped string
- *
- * @internal
- */
- function escapeSimple($str) {
- return @mysqli_real_escape_string($this->connection, $str);
- }
-
- // }}}
- // {{{ modifyQuery()
-
- function modifyQuery($query)
- {
- return $query;
- }
-
- // }}}
- // {{{ modifyLimitQuery()
-
- function modifyLimitQuery($query, $from, $count, $params = array())
- {
- if (DB::isManip($query)) {
- return $query . " LIMIT $count";
- } else {
- return $query . " LIMIT $from, $count";
- }
- }
-
- // }}}
- // {{{ mysqlRaiseError()
-
- /**
- * Gather information about an error, then use that info to create a
- * DB error object and finally return that object.
- *
- * @param integer $errno PEAR error number (usually a DB constant) if
- * manually raising an error
- * @return object DB error object
- * @see DB_common::errorCode()
- * @see DB_common::raiseError()
- */
- function mysqlRaiseError($errno = null)
- {
- if ($errno === null) {
- if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
- $this->errorcode_map[1022] = DB_ERROR_CONSTRAINT;
- $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL;
- $this->errorcode_map[1062] = DB_ERROR_CONSTRAINT;
- } else {
- // Doing this in case mode changes during runtime.
- $this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS;
- $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT;
- $this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS;
- }
- $errno = $this->errorCode(mysqli_errno($this->connection));
- }
- return $this->raiseError($errno, null, null, null,
- @mysqli_errno($this->connection) . ' ** ' .
- @mysqli_error($this->connection));
- }
-
- // }}}
- // {{{ tableInfo()
-
- /**
- * Returns information about a table or a result set.
- *
- * WARNING: this method will probably not work because the mysqli_*()
- * functions it relies upon may not exist.
- *
- * @param object|string $result DB_result object from a query or a
- * string containing the name of a table
- * @param int $mode a valid tableInfo mode
- * @return array an associative array with the information requested
- * or an error object if something is wrong
- * @access public
- * @internal
- * @see DB_common::tableInfo()
- */
- function tableInfo($result, $mode = null) {
- if (isset($result->result)) {
- /*
- * Probably received a result object.
- * Extract the result resource identifier.
- */
- $id = $result->result;
- $got_string = false;
- } elseif (is_string($result)) {
- /*
- * Probably received a table name.
- * Create a result resource identifier.
- */
- $id = @mysqli_query($this->connection,
- "SELECT * FROM $result LIMIT 0");
- $got_string = true;
- } else {
- /*
- * Probably received a result resource identifier.
- * Copy it.
- * Deprecated. Here for compatibility only.
- */
- $id = $result;
- $got_string = false;
- }
-
- if (!is_a($id, 'mysqli_result')) {
- return $this->mysqlRaiseError(DB_ERROR_NEED_MORE_DATA);
- }
-
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
-
- $count = @mysqli_num_fields($id);
-
- // made this IF due to performance (one if is faster than $count if's)
- if (!$mode) {
- for ($i=0; $i<$count; $i++) {
- $tmp = @mysqli_fetch_field($id);
- $res[$i]['table'] = $case_func($tmp->table);
- $res[$i]['name'] = $case_func($tmp->name);
- $res[$i]['type'] = isset($this->mysqli_types[$tmp->type]) ?
- $this->mysqli_types[$tmp->type] :
- 'unknown';
- $res[$i]['len'] = $tmp->max_length;
-
- $res[$i]['flags'] = '';
- foreach ($this->mysqli_flags as $const => $means) {
- if ($tmp->flags & $const) {
- $res[$i]['flags'] .= $means . ' ';
- }
- }
- if ($tmp->def) {
- $res[$i]['flags'] .= 'default_' . rawurlencode($tmp->def);
- }
- $res[$i]['flags'] = trim($res[$i]['flags']);
- }
- } else { // full
- $res['num_fields']= $count;
-
- for ($i=0; $i<$count; $i++) {
- $tmp = @mysqli_fetch_field($id);
- $res[$i]['table'] = $case_func($tmp->table);
- $res[$i]['name'] = $case_func($tmp->name);
- $res[$i]['type'] = isset($this->mysqli_types[$tmp->type]) ?
- $this->mysqli_types[$tmp->type] :
- 'unknown';
- $res[$i]['len'] = $tmp->max_length;
-
- $res[$i]['flags'] = '';
- foreach ($this->mysqli_flags as $const => $means) {
- if ($tmp->flags & $const) {
- $res[$i]['flags'] .= $means . ' ';
- }
- }
- if ($tmp->def) {
- $res[$i]['flags'] .= 'default_' . rawurlencode($tmp->def);
- }
- $res[$i]['flags'] = trim($res[$i]['flags']);
-
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- }
- }
-
- // free the result only if we were called on a table
- if ($got_string) {
- @mysqli_free_result($id);
- }
- return $res;
- }
-
- // }}}
- // {{{ getSpecialQuery()
-
- /**
- * Returns the query needed to get some backend info.
- *
- * @param string $type What kind of info you want to retrieve
- * @return string The SQL query string
- */
- function getSpecialQuery($type)
- {
- switch ($type) {
- case 'tables':
- return 'SHOW TABLES';
- case 'views':
- return DB_ERROR_NOT_CAPABLE;
- case 'users':
- $sql = 'select distinct User from user';
- if ($this->dsn['database'] != 'mysql') {
- $dsn = $this->dsn;
- $dsn['database'] = 'mysql';
- if (DB::isError($db = DB::connect($dsn))) {
- return $db;
- }
- $sql = $db->getCol($sql);
- $db->disconnect();
- // XXX Fixme the mysql driver should take care of this
- if (!@mysqli_select_db($this->connection, $this->dsn['database'])) {
- return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- }
- return $sql;
- case 'databases':
- return 'SHOW DATABASES';
- default:
- return null;
- }
- }
-
- // }}}
-
- }
-
- /*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
-
- ?>
-