mirror of
https://github.com/phpbb/phpbb.git
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414 lines
8.9 KiB
PHP
414 lines
8.9 KiB
PHP
<?php
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/***************************************************************************
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* msaccess.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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if(!defined("SQL_LAYER"))
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{
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define("SQL_LAYER","msaccess");
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class sql_db
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{
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var $db_connect_id;
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var $result_ids = array();
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var $result;
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var $next_id;
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var $num_rows = array();
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var $current_row = array();
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var $field_names = array();
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var $field_types = array();
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var $result_rowset = array();
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var $num_queries = 0;
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function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
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{
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$this->persistency = $persistency;
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$this->server = $sqlserver;
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$this->user = $sqluser;
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$this->password = $sqlpassword;
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$this->dbname = $database;
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$this->db_connect_id = ($this->persistency) ? @odbc_pconnect($this->server, $this->user, $this->password) : @odbc_connect($this->server, $this->user, $this->password);
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return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
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}
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function sql_return_on_error($fail = false)
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{
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$this->return_on_error = $fail;
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}
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function sql_num_queries()
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{
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return $this->num_queries;
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}
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//
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// Other base methods
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//
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function sql_close()
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{
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if($this->db_connect_id)
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{
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if($this->in_transaction)
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{
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@odbc_commit($this->db_connect_id);
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}
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if(count($this->result_rowset))
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{
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unset($this->result_rowset);
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unset($this->field_names);
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unset($this->field_types);
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unset($this->num_rows);
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unset($this->current_row);
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}
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return @odbc_close($this->db_connect_id);
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}
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else
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{
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return false;
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}
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}
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//
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// Query method
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//
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function sql_query($query = "", $transaction = FALSE)
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{
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if($query != "")
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{
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$this->num_queries++;
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if($transaction == BEGIN_TRANSACTION && !$this->in_transaction)
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{
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if(!odbc_autocommit($this->db_connect_id, false))
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{
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return false;
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}
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$this->in_transaction = TRUE;
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}
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$query = str_replace("LOWER(", "LCASE(", $query);
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if(preg_match("/^SELECT(.*?)(LIMIT ([0-9]+)[, ]*([0-9]+)*)?$/s", $query, $limits))
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{
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$query = $limits[1];
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if(!empty($limits[2]))
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{
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$row_offset = ($limits[4]) ? $limits[3] : "";
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$num_rows = ($limits[4]) ? $limits[4] : $limits[3];
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$query = "TOP " . ($row_offset + $num_rows) . $query;
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}
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$this->result = odbc_exec($this->db_connect_id, "SELECT $query");
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if($this->result)
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{
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if(empty($this->field_names[$this->result]))
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{
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for($i = 1; $i < odbc_num_fields($this->result) + 1; $i++)
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{
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$this->field_names[$this->result][] = odbc_field_name($this->result, $i);
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$this->field_types[$this->result][] = odbc_field_type($this->result, $i);
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}
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}
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$this->current_row[$this->result] = 0;
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$this->result_rowset[$this->result] = array();
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$row_outer = (isset($row_offset)) ? $row_offset + 1 : 1;
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$row_outer_max = (isset($num_rows)) ? $row_offset + $num_rows + 1 : 1E9;
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$row_inner = 0;
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while(odbc_fetch_row($this->result, $row_outer) && $row_outer < $row_outer_max)
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{
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for($j = 0; $j < count($this->field_names[$this->result]); $j++)
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{
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$this->result_rowset[$this->result][$row_inner][$this->field_names[$this->result][$j]] = stripslashes(odbc_result($this->result, $j + 1));
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}
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$row_outer++;
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$row_inner++;
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}
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$this->num_rows[$this->result] = count($this->result_rowset[$this->result]);
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odbc_free_result($this->result);
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}
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}
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else if(eregi("^INSERT ", $query))
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{
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$this->result = odbc_exec($this->db_connect_id, $query);
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if($this->result)
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{
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$result_id = odbc_exec($this->db_connect_id, "SELECT @@IDENTITY");
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if($result_id)
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{
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if(odbc_fetch_row($result_id))
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{
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$this->next_id[$this->db_connect_id] = odbc_result($result_id, 1);
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$this->affected_rows[$this->db_connect_id] = odbc_num_rows($this->result);
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}
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}
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}
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}
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else
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{
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$this->result = odbc_exec($this->db_connect_id, $query);
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if($this->result)
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{
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$this->affected_rows[$this->db_connect_id] = odbc_num_rows($this->result);
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}
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}
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if(!$this->result)
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{
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if($this->in_transaction)
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{
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odbc_rollback($this->db_connect_id);
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odbc_autocommit($this->db_connect_id, true);
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$this->in_transaction = FALSE;
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}
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return false;
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}
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if($transaction == END_TRANSACTION && $this->in_transaction)
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{
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$this->in_transaction = FALSE;
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if (!@odbc_commit($this->db_connect_id))
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{
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odbc_rollback($this->db_connect_id);
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odbc_autocommit($this->db_connect_id, true);
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return false;
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}
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odbc_autocommit($this->db_connect_id, true);
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}
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return $this->result;
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}
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else
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{
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if($transaction == END_TRANSACTION && $this->in_transaction)
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{
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$this->in_transaction = FALSE;
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if (!@odbc_commit($this->db_connect_id))
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{
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odbc_rollback($this->db_connect_id);
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odbc_autocommit($this->db_connect_id, true);
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return false;
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}
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odbc_autocommit($this->db_connect_id, true);
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}
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return true;
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}
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}
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//
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// Other query methods
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//
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function sql_numrows($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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return ($query_id) ? $this->num_rows[$query_id] : false;
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}
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function sql_numfields($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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return ($query_id) ? count($this->field_names[$query_id]) : false;
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}
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function sql_fieldname($offset, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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return ($query_id) ? $this->field_names[$query_id][$offset] : false;
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}
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function sql_fieldtype($offset, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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return ($query_id) ? $this->field_types[$query_id][$offset] : false;
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}
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function sql_fetchrow($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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if($query_id)
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{
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return ($this->num_rows[$query_id] && $this->current_row[$query_id] < $this->num_rows[$query_id]) ? $this->result_rowset[$query_id][$this->current_row[$query_id]++] : false;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchrowset($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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if($query_id)
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{
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return ($this->num_rows[$query_id]) ? $this->result_rowset[$query_id] : false;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchfield($field, $row = -1, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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if($query_id)
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{
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if($row < $this->num_rows[$query_id])
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{
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$getrow = ($row == -1) ? $this->current_row[$query_id] - 1 : $row;
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return $this->result_rowset[$query_id][$getrow][$this->field_names[$query_id][$field]];
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}
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else
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{
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return false;
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}
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}
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else
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{
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return false;
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}
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}
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function sql_rowseek($offset, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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if($query_id)
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{
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$this->current_row[$query_id] = $offset - 1;
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return true;
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}
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else
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{
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return false;
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}
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}
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function sql_nextid()
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{
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return ($this->next_id[$this->db_connect_id]) ? $this->next_id[$this->db_connect_id] : false;
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}
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function sql_affectedrows()
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{
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return ($this->affected_rows[$this->db_connect_id]) ? $this->affected_rows[$this->db_connect_id] : false;
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}
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function sql_freeresult($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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unset($this->num_rows[$query_id]);
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unset($this->current_row[$query_id]);
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unset($this->result_rowset[$query_id]);
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unset($this->field_names[$query_id]);
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unset($this->field_types[$query_id]);
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return true;
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}
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function sql_error($sql = '')
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{
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if (!$this->return_on_error)
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{
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$this_page = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF'];
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$this_page .= '&' . ((!empty($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : $_ENV['QUERY_STRING']);
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$message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @odbc_errormsg() . '<br /><br /><u>CALLING PAGE</u><br /><br />' . htmlspecialchars($this_page) . (($sql != '') ? '<br /><br /><u>SQL</u><br /><br />' . $sql : '') . '<br />';
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if ($this->transaction)
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{
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$this->sql_transaction('rollback');
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}
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trigger_error($message, E_USER_ERROR);
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}
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$result = array(
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'message' => @odbc_errormsg(),
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'code' => @odbc_error()
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);
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return $result;
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}
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} // class sql_db
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} // if ... define
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?>
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