Source for file odbc.php
Documentation is available at odbc.php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
* The PEAR DB driver for PHP's odbc extension
* for interacting with databases via ODBC connections
* 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 Stig Bakken <ssb@php.net>
* @author Daniel Convissor <danielc@php.net>
* @copyright 1997-2007 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: odbc.php,v 1.81 2007/07/06 05:19:21 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 odbc extension
* for interacting with databases via ODBC connections
* These methods overload the ones declared in DB_common.
* More info on ODBC errors could be found here:
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/trblsql/tr_err_odbc_5stz.asp
* @author Stig Bakken <ssb@php.net>
* @author Daniel Convissor <danielc@php.net>
* @copyright 1997-2007 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version Release: 1.7.14RC1
* @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
* NOTE: The feature set of the following drivers are different than
* + solid: 'transactions' = true
* + navision: 'limit' = false
* A mapping of native error codes to DB error codes
'01004' => DB_ERROR_TRUNCATED ,
'07001' => DB_ERROR_MISMATCH ,
'21S01' => DB_ERROR_VALUE_COUNT_ON_ROW ,
'21S02' => DB_ERROR_MISMATCH ,
'22001' => DB_ERROR_INVALID ,
'22003' => DB_ERROR_INVALID_NUMBER ,
'22005' => DB_ERROR_INVALID_NUMBER ,
'22008' => DB_ERROR_INVALID_DATE ,
'22012' => DB_ERROR_DIVZERO ,
'23000' => DB_ERROR_CONSTRAINT ,
'23502' => DB_ERROR_CONSTRAINT_NOT_NULL ,
'23503' => DB_ERROR_CONSTRAINT ,
'23504' => DB_ERROR_CONSTRAINT ,
'23505' => DB_ERROR_CONSTRAINT ,
'24000' => DB_ERROR_INVALID ,
'34000' => DB_ERROR_INVALID ,
'37000' => DB_ERROR_SYNTAX ,
'42000' => DB_ERROR_SYNTAX ,
'42601' => DB_ERROR_SYNTAX ,
'IM001' => DB_ERROR_UNSUPPORTED ,
'S0000' => DB_ERROR_NOSUCHTABLE ,
'S0001' => DB_ERROR_ALREADY_EXISTS ,
'S0002' => DB_ERROR_NOSUCHTABLE ,
'S0011' => DB_ERROR_ALREADY_EXISTS ,
'S0012' => DB_ERROR_NOT_FOUND ,
'S0021' => DB_ERROR_ALREADY_EXISTS ,
'S0022' => DB_ERROR_NOSUCHFIELD ,
'S1009' => DB_ERROR_INVALID ,
'S1090' => DB_ERROR_INVALID ,
'S1C00' => DB_ERROR_NOT_CAPABLE ,
* The raw database connection created by PHP
* The DSN information for connecting to a database
* The number of rows affected by a data manipulation query
* 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 odbc driver supports the following extra DSN options:
* + cursor The type of cursor to be used for this connection.
* @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 ('odbc')) {
* This is hear for backwards compatibility. Should have been using
* 'database' all along, but prior to 1.6.0RC3 'hostspec' was used.
$odbcdsn = $dsn['database'];
} elseif ($dsn['hostspec']) {
$odbcdsn = $dsn['hostspec'];
$connect_function = $persistent ? 'odbc_pconnect' : 'odbc_connect';
if (empty ($dsn['cursor'])) {
$this->connection = @$connect_function($odbcdsn, $dsn['username'],
$this->connection = @$connect_function($odbcdsn, $dsn['username'],
* 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
// Determine which queries that should return data, and which
// should return an error code only.
$this->affected = $result; // For affectedRows()
* Move the internal odbc result pointer to the next available result
* @param a valid fbsql result resource
* @return true if a result is available otherwise return false
return @odbc_next_result ($result);
* 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 )
$rownum++; // ODBC first row is 1
$cols = @odbc_fetch_into ($result, $arr, $rownum);
$cols = @odbc_fetch_into ($result, $rownum, $arr);
$cols = @odbc_fetch_into ($result, $arr);
for ($i = 0; $i < count($arr); $i++ ) {
$colName = @odbc_field_name ($result, $i+1 );
* 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) ? odbc_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()
$cols = @odbc_num_fields ($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.
if (empty ($this->affected)) { // In case of SELECT stms
$nrows = @odbc_num_rows ($this->affected);
* Gets the number of rows in a result set
* Not all ODBC drivers support this functionality. If they don't
* a DB_Error object for DB_ERROR_UNSUPPORTED is returned.
* 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()
$nrows = @odbc_num_rows ($result);
* Quotes a string so it can be safely used as a table or column name
* Use 'mssql' as the dbsyntax in the DB DSN only if you've unchecked
* "Use ANSI quoted identifiers" when setting up the ODBC data source.
* @param string $str identifier name to be quoted
* @return string quoted identifier string
* @see DB_common::quoteIdentifier()
* @since Method available since Release 1.6.0
switch ($this->dsn['dbsyntax']) {
* @deprecated Deprecated in release 1.6.0
* Returns the next free id in a sequence
* @param string $seq_name name of the sequence
* @param boolean $ondemand when true, the seqence is automatically
* created if it does not exist
* @return int the next id number in the sequence.
* A DB_Error object on failure.
* @see DB_common::nextID(), DB_common::getSequenceName(),
* DB_odbc::createSequence(), DB_odbc::dropSequence()
function nextId($seq_name, $ondemand = true )
$this->pushErrorHandling (PEAR_ERROR_RETURN );
$result = $this->query(" update ${seqname} set id = id + 1" );
$this->popErrorHandling ();
$this->pushErrorHandling (PEAR_ERROR_RETURN );
$this->popErrorHandling ();
$result = $this->query(" insert into ${seqname} (id) values(0)" );
$result = $this->query(" select id 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_odbc::nextID(), DB_odbc::dropSequence()
return $this->query('CREATE TABLE '
. ' (id integer 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_odbc::nextID(), DB_odbc::createSequence()
* Enables or disables automatic commits
* @param bool $onoff true turns it on, false turns it off
* @return int DB_OK on success. A DB_Error object if the driver
* doesn't support auto-committing transactions.
if (!@odbc_autocommit ($this->connection, $onoff)) {
* Commits the current transaction
* @return int DB_OK on success. A DB_Error object on failure.
* Reverts the current transaction
* @return int DB_OK on success. A DB_Error object on failure.
* 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_odbc::errorNative(), DB_common::errorCode()
// Doing this in case mode changes during runtime.
// S1000 is for "General Error." Let's be more specific.
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