Source for file sybase.php
Documentation is available at sybase.php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
* The PEAR DB driver for PHP's sybase extension
* for interacting with Sybase databases
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_0.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
* @author Sterling Hughes <sterling@php.net>
* @author Antônio Carlos Venâncio Júnior <floripa@php.net>
* @author Daniel Convissor <danielc@php.net>
* @copyright 1997-2005 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: sybase.php,v 1.85 2007/02/06 07:35:07 aharvey Exp $
* @link http://pear.php.net/package/DB
* Obtain the DB_common class so it can be extended from
require_once 'DB/common.php';
* The methods PEAR DB uses to interact with PHP's sybase extension
* for interacting with Sybase databases
* These methods overload the ones declared in DB_common.
* WARNING: This driver may fail with multiple connections under the
* same user/pass/host and different databases.
* @author Sterling Hughes <sterling@php.net>
* @author Antônio Carlos Venâncio Júnior <floripa@php.net>
* @author Daniel Convissor <danielc@php.net>
* @copyright 1997-2005 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version Release: 1.7.10
* @link http://pear.php.net/package/DB
* The DB driver type (mysql, oci8, odbc, etc.)
* The database syntax variant to be used (db2, access, etc.), if any
* The capabilities of this DB implementation
* The 'new_link' element contains the PHP version that first provided
* new_link support for this DBMS. Contains false if it's unsupported.
* Meaning of the 'limit' element:
* + 'emulate' = emulate with fetch row by number
* + 'alter' = alter the query
* A mapping of native error codes to DB error codes
* The raw database connection created by PHP
* The DSN information for connecting to a database
* Should data manipulation queries be committed automatically?
* The quantity of transactions begun
* {@internal While this is private, it can't actually be designated
* private in PHP 5 because it is directly accessed in the test suite.}}
var $transaction_opcount = 0;
* The database specified in the DSN
* It's a fix to allow calls to different databases in the same script.
* This constructor calls <kbd>$this->DB_common()</kbd>
* Connect to the database server, log in and open the database
* Don't call this method directly. Use DB::connect() instead.
* PEAR DB's sybase driver supports the following extra DSN options:
* + appname The application name to use on this connection.
* Available since PEAR DB 1.7.0.
* + charset The character set to use on this connection.
* Available since PEAR DB 1.7.0.
* @param array $dsn the data source name
* @param bool $persistent should the connection be persistent?
* @return int DB_OK on success. A DB_Error object on failure.
function connect($dsn, $persistent = false )
if (!PEAR ::loadExtension ('sybase') &&
!PEAR ::loadExtension ('sybase_ct'))
$dsn['hostspec'] = $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost';
$dsn['password'] = !empty ($dsn['password']) ? $dsn['password'] : false;
$dsn['charset'] = isset ($dsn['charset']) ? $dsn['charset'] : false;
$dsn['appname'] = isset ($dsn['appname']) ? $dsn['appname'] : false;
$connect_function = $persistent ? 'sybase_pconnect' : 'sybase_connect';
$this->connection = @$connect_function($dsn['hostspec'],
'The DSN did not contain a username.');
@sybase_get_last_message ());
if (!@sybase_select_db ($dsn['database'], $this->connection)) {
@sybase_get_last_message ());
$this->_db = $dsn['database'];
* Disconnects from the database server
* @return bool TRUE on success, FALSE on failure
* Sends a query to the database server
* @param string the SQL query string
* @return mixed + a PHP result resrouce for successful SELECT queries
* + the DB_OK constant for other successful queries
* + a DB_Error object on failure
if ($this->_db && !@sybase_select_db ($this->_db, $this->connection)) {
if (!$this->autocommit && $ismanip) {
if ($this->transaction_opcount == 0 ) {
$result = @sybase_query ('BEGIN TRANSACTION', $this->connection);
$this->transaction_opcount++;
$result = @sybase_query ($query, $this->connection);
// Determine which queries that should return data, and which
// should return an error code only.
return $ismanip ? DB_OK : $result;
* Move the internal sybase result pointer to the next available result
* @param a valid sybase result resource
* @return true if a result is available otherwise return false
* Places a row from the result set into the given array
* Formating of the array and the data therein are configurable.
* See DB_result::fetchInto() for more information.
* This method is not meant to be called directly. Use
* DB_result::fetchInto() instead. It can't be declared "protected"
* because DB_result is a separate object.
* @param resource $result the query result resource
* @param array $arr the referenced array to put the data in
* @param int $fetchmode how the resulting array should be indexed
* @param int $rownum the row number to fetch (0 = first row)
* @return mixed DB_OK on success, NULL when the end of a result set is
* @see DB_result::fetchInto()
function fetchInto($result, &$arr, $fetchmode, $rownum = null )
if (!@sybase_data_seek ($result, $rownum)) {
$arr = @sybase_fetch_assoc ($result);
if ($arr = @sybase_fetch_array ($result)) {
foreach ($arr as $key => $value) {
$arr = @sybase_fetch_row ($result);
* Deletes the result set and frees the memory occupied by the result set
* This method is not meant to be called directly. Use
* DB_result::free() instead. It can't be declared "protected"
* because DB_result is a separate object.
* @param resource $result PHP's query result resource
* @return bool TRUE on success, FALSE if $result is invalid
return is_resource($result) ? sybase_free_result ($result) : false;
* Gets the number of columns in a result set
* This method is not meant to be called directly. Use
* DB_result::numCols() instead. It can't be declared "protected"
* because DB_result is a separate object.
* @param resource $result PHP's query result resource
* @return int the number of columns. A DB_Error object on failure.
* @see DB_result::numCols()
$cols = @sybase_num_fields ($result);
* Gets the number of rows in a result set
* This method is not meant to be called directly. Use
* DB_result::numRows() instead. It can't be declared "protected"
* because DB_result is a separate object.
* @param resource $result PHP's query result resource
* @return int the number of rows. A DB_Error object on failure.
* @see DB_result::numRows()
$rows = @sybase_num_rows ($result);
* Determines the number of rows affected by a data maniuplation query
* 0 is returned for queries that don't manipulate data.
* @return int the number of rows. A DB_Error object on failure.
$result = @sybase_affected_rows ($this->connection);
* Returns the next free id in a sequence
* @param string $seq_name name of the sequence
* @param boolean $ondemand when true, the seqence is automatically
* created if it does not exist
* @return int the next id number in the sequence.
* A DB_Error object on failure.
* @see DB_common::nextID(), DB_common::getSequenceName(),
* DB_sybase::createSequence(), DB_sybase::dropSequence()
function nextId($seq_name, $ondemand = true )
if ($this->_db && !@sybase_select_db ($this->_db, $this->connection)) {
$this->pushErrorHandling (PEAR_ERROR_RETURN );
$result = $this->query(" INSERT INTO $seqname (vapor) VALUES (0)" );
$this->popErrorHandling ();
$result = & $this->query(" SELECT @@IDENTITY FROM $seqname" );
* @param string $seq_name name of the new sequence
* @return int DB_OK on success. A DB_Error object on failure.
* @see DB_common::createSequence(), DB_common::getSequenceName(),
* DB_sybase::nextID(), DB_sybase::dropSequence()
return $this->query('CREATE TABLE '
. ' (id numeric(10, 0) IDENTITY NOT NULL,'
* @param string $seq_name name of the sequence to be deleted
* @return int DB_OK on success. A DB_Error object on failure.
* @see DB_common::dropSequence(), DB_common::getSequenceName(),
* DB_sybase::nextID(), DB_sybase::createSequence()
* Formats a float value for use within a query in a locale-independent
* @param float the float value to be quoted.
* @return string the quoted string.
* @see DB_common::quoteSmart()
* @since Method available since release 1.7.8.
* Enables or disables automatic commits
* @param bool $onoff true turns it on, false turns it off
* @return int DB_OK on success. A DB_Error object if the driver
* doesn't support auto-committing transactions.
// XXX if $this->transaction_opcount > 0, we should probably
$this->autocommit = $onoff ? true : false;
* Commits the current transaction
* @return int DB_OK on success. A DB_Error object on failure.
if ($this->transaction_opcount > 0 ) {
if ($this->_db && !@sybase_select_db ($this->_db, $this->connection)) {
$result = @sybase_query ('COMMIT', $this->connection);
$this->transaction_opcount = 0;
* Reverts the current transaction
* @return int DB_OK on success. A DB_Error object on failure.
if ($this->transaction_opcount > 0 ) {
if ($this->_db && !@sybase_select_db ($this->_db, $this->connection)) {
$result = @sybase_query ('ROLLBACK', $this->connection);
$this->transaction_opcount = 0;
// {{{ sybaseRaiseError()
* Produces a DB_Error object regarding the current problem
* @param int $errno if the error is being manually raised pass a
* DB_ERROR* constant here. If this isn't passed
* the error information gathered from the DBMS.
* @return object the DB_Error object
* @see DB_common::raiseError(),
* DB_sybase::errorNative(), DB_sybase::errorCode()
return $this->raiseError($errno, null , null , null , $native);
* Gets the DBMS' native error message produced by the last query
* @return string the DBMS' error message
|