Viewing file:  ibm_db2.php (10.45 KB) -rw-rw-rw-
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/**
* $Id: ibm_db2.php,v 1.1.2.3 2006/06/29 19:31:11 matteo Exp $
*
* db_db2
*
* The db_db2 class provides methods and functions for a IBM DB2 Version 8.2
* database. This will only work with the PECL extension.
*
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @author Helmut Tessarek <tessus@evermeet.cx>
* @package db_db2
* @since 2005-04-16
*
* Copyright: (c) 2006 phpMyFAQ Team
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*/
class db_ibm_db2
{
/**
* The connection object
*
* @var mixed
* @see connect(), query(), dbclose()
*/
var $conn = FALSE;
/**
* The query log string
*
* @var string
* @see query()
*/
var $sqllog = "";
/**
* The options array for DB2
*
* @var array
* @see connect()
*/
var $options = array('autocommit' => DB2_AUTOCOMMIT_ON);
/**
* SQL statement
*
*/
var $stmt;
/**
* Constructor
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function db_db2()
{
}
/**
* connect()
*
* This function connects to a DB2 database
*
* @param string $host
* @param string $username
* @param string $password
* @param string $db_name
* @return boolean TRUE, if connected, otherwise FALSE
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function connect($host, $user, $passwd, $db)
{
$this->conn = db2_pconnect($db, $user, $passwd, $this->options);
if (false == $this->conn) {
print "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
print "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n";
print "<head>\n";
print " <title>phpMyFAQ Error</title>\n";
print " <meta http-equiv=\"content-type\" content=\"application/xhtml+xml; charset=utf-8\" />\n";
print "</head>\n";
print "<body>\n";
print "<p align=\"center\">The connection to the DB2 server could not be established.</p>\n";
print "<p align=\"center\">The error message of the DB2 server:<br />".db2_conn_errormsg()."</p>\n";
print "</body>\n";
print "</html>";
return false;
}
return true;
}
/**
* query()
*
* This function sends a query to the database.
*
* @param string $query
* @return mixed $result
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function query($query)
{
$this->sqllog .= $query."<br />\n";
return db2_exec($this->conn, $query, array('cursor' => DB2_SCROLLABLE));
}
/**
* escape_string()
*
* Escapes a string for use in a query
*
* @param string
* @return string
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function escape_string($string)
{
return str_replace("'", "''", $string);
}
/**
* fetch_object()
*
* This function fetches a result row as an object.
*
* @param mixed $result
* @return mixed
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @author Helmut Tessarek <tessus@evermeet.cx>
* @since 2005-04-16
*/
function fetch_object($result)
{
$_result = db2_fetch_object($result);
if (is_object($_result)) {
return (object)array_change_key_case(get_object_vars($_result), CASE_LOWER);
} else {
return false;
}
}
/**
* fetch_assoc()
*
* This function fetches a result as an associative array.
*
* @param mixed $result
* @return array
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function fetch_assoc($result)
{
$_result = db2_fetch_assoc($result);
if (is_array($_result)) {
return array_change_key_case($_result, CASE_LOWER);
} else {
return false;
}
}
/**
* num_rows()
*
* Number of rows in a result
*
* @param mixed $result
* @return integer
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function num_rows($result)
{
return db2_num_rows($result);
}
/**
* insert_id()
*
* Returns the ID of the latest insert
*
* @return integer
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function insert_id($table, $field)
{
$result = $this->query('SELECT max('.$field.') AS last_id FROM '.$table);
$row = $this->fetch_object($result);
return $row->last_id;
}
/**
* sqllog()
*
* Logs the queries
*
* @param mixed $result
* @return integer
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function sqllog()
{
return $this->sqllog;
}
/**
* search()
*
* This function generates a result set based on a search string.
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @author Matteo scaramuccia <matteo@scaramuccia.com>
* @since 2005-04-16
*/
function search($table, $assoc, $joinedTable = '', $joinAssoc = array(), $match = array(), $string = '', $cond = array(), $orderBy = array())
{
$string = trim($string);
$fields = '';
$join = '';
$joined = '';
$where = '';
foreach ($assoc as $field) {
if (empty($fields)) {
$fields = $field;
} else {
$fields .= ", ".$field;
}
}
if (isset($joinedTable) && $joinedTable != '') {
$joined .= ' LEFT JOIN '.$joinedTable.' ON ';
}
if (is_array($joinAssoc)) {
foreach ($joinAssoc as $joinedFields) {
$join .= $joinedFields.' AND ';
}
$joined .= substr($join, 0, -4);
}
$keys = preg_split("/\s+/", $string);
$numKeys = count($keys);
$numMatch = count($match);
for ($i = 0; $i < $numKeys; $i++) {
if (strlen($where) != 0 ) {
$where = $where." OR";
}
$where = $where." (";
for ($j = 0; $j < $numMatch; $j++) {
if ($j != 0) {
$where = $where." OR ";
}
$where = $where.$match[$j]." LIKE '%".$keys[$i]."%'";
}
$where .= ")";
}
foreach ($cond as $field => $data) {
if (empty($where)) {
$where .= $field." = ".$data;
} else {
$where .= " AND ".$field." = ".$data;
}
}
$query = "SELECT ".$fields." FROM ".$table.$joined." WHERE";
if (!empty($where)) {
$query .= " (".$where.")";
}
if (is_numeric($string)) {
$query = "SELECT ".$fields." FROM ".$table.$joined." WHERE ".$match." = ".$string;
}
$firstOrderBy = true;
foreach ($orderBy as $field) {
if ($firstOrderBy) {
$query .= " ORDER BY ".$field;
$firstOrderBy = false;
} else {
$query .= ", ".$field;
}
}
return $this->query($query);
}
/**
* getTableStatus()
*
* This function returns the table status.
*
* TODO: Implement this function!
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function getTableStatus()
{
return;
}
/**
* nextID()
*
* Returns the next ID of a table
*
* @param string the name of the table
* @param string the name of the ID column
* @return int
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function nextID($table, $id)
{
$result = $this->query('SELECT MAX('.$id.') as current_id FROM '.$table);
$row = $this->fetch_object($result);
return ($row->current_id + 1);
}
/**
* error()
*
* This function returns the last error string.
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function error()
{
return db2_stmt_errormsg();
}
/**
* client_version()
*
* This function returns the version string.
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function client_version()
{
$client = db2_client_info($this->conn);
$ver = $client->DRIVER_NAME.' '.$client->DRIVER_VER;
return $ver;
}
/**
* server_version()
*
* This function returns the version string.
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function server_version()
{
$server = db2_server_info($this->conn);
$ver = $server->DBMS_NAME.' '.$server->DBMS_VER;
return $ver;
}
/**
* dbclose()
*
* This function closes the connection to the database.
*
* @access public
* @author Thorsten Rinne <thorsten@phpmyfaq.de>
* @since 2005-04-16
*/
function dbclose()
{
return db2_close($this->conn);
}
}
|