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dpavlin |
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<? |
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/* mnoGoSearch-db_func-php v.1.0 |
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* free convenient API to database backends |
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* (C) 1999,2000 by Sergey Kartashoff <gluke@biosys.net> |
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* oracle7 support by Roman V. Petrov (poma@mail.ru) |
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* |
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* supports: MySQL , Oracle (both v7 and v8) and PostgreSQL |
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* also supports connection through ODBC interface |
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*/ |
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// API: |
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// ---- |
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// db_init($dbtype,$dbname,$dbhost, |
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// $dbuser,$dbpass,$dbport, |
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// $dbodbc,$dbodbc_cursor_type) ; return nothing dbodbc can be 0 or 1 |
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// db_numrows($res) ; return number of rown in result |
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// db_query($query) ; return handle to result or false if error |
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// db_fetchrow($res) ; return array with fetched row or false if error or end of rows |
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// db_dataseek($res,$from) ; return true if success or false if error |
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// db_freeresult($res) ; return nothing |
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// db_error() ; return database error string |
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// old function calls: |
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// ------------------- |
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// initdb() |
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// query($query) |
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// fetch_row($res) |
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// db_data_seek($res,$from) |
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// free_result($res) |
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// ----------------------------------------------- |
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// initdb() - OLD |
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// ----------------------------------------------- |
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function initdb(){ |
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global $dbtype,$dbname,$dbhost,$dbuser,$dbpass,$dbport; |
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global $dbodbc,$dbodbc_cursor_type; |
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db_init($dbtype,$dbname,$dbhost,$dbuser,$dbpass,$dbport,$dbodbc,$dbodbc_cursor_type); |
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} |
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// ----------------------------------------------- |
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// query($query) |
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// ----------------------------------------------- |
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function query($query) { |
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return db_query($query); |
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} |
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// ----------------------------------------------- |
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// fetch_row($res) |
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// ----------------------------------------------- |
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function fetch_row($res) { |
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return db_fetchrow($res); |
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} |
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// ----------------------------------------------- |
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// db_data_seek($res,$from) |
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// ----------------------------------------------- |
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function db_data_seek($res,$from) { |
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return db_dataseek($res,$from); |
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} |
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// ----------------------------------------------- |
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// free_result($res) |
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// ----------------------------------------------- |
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function free_result($res) { |
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db_freeresult($res); |
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} |
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// ----------------------------------------------- |
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// db_init($dbtype,$dbname,$dbhost,$dbuser,$dbpass,$dbport) |
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// ----------------------------------------------- |
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function db_init($dbtype,$dbname,$dbhost,$dbuser,$dbpass,$dbport,$dbodbc,$dbodbc_cursor_type){ |
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global $dbconn; |
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global $cur_row_array; |
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global $num_rows_array; |
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if ($dbodbc) { |
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if ($dbodbc_cursor_type) { |
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if (! $dbconn=odbc_pconnect($dbname,$dbuser,$dbpass,$dbodbc_cursor_type)) |
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print_db_error("Cannot connect to odbc datasource $dbname as user $dbuser"); |
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} else { |
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if (! $dbconn=odbc_pconnect($dbname,$dbuser,$dbpass)) |
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print_db_error("Cannot connect to odbc datasource $dbname as user $dbuser"); |
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} |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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if (($dbhost == '') || ($dbhost == '_socket')) { |
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if (!mysql_pconnect('',$dbuser,$dbpass)) |
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print_db_error("Cannot connect to local mysql socket as user $dbuser"); |
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} else { |
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if ($dbport == '') { |
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if (!mysql_pconnect($dbhost,$dbuser,$dbpass)) |
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print_db_error("Cannot connect to mysql host $dbhost as user $dbuser"); |
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} else { |
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if (!mysql_pconnect("$dbhost:$dbport",$dbuser,$dbpass)) |
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print_db_error("Cannot connect to mysql host $dbhost:$dbport as user $dbuser"); |
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} |
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} |
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if (! mysql_select_db($dbname)) |
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print_db_error("DB $dbname select error"); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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if (! $dbconn=OCIPLogon($dbuser,$dbpass,$dbname)) |
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print_db_error("Cannot connect to oracle db $dbname as user $dbuser"); |
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break; |
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case 'oracle7': |
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if (! $dbconn=ora_plogon("$dbuser/$dbpass@$dbname","")) |
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print_db_error("Cannot connect to oracle db $dbname as user $dbuser"); |
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if (! $dbconn=ora_open($dbconn)) |
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print_db_error("Cannot connect to oracle db $dbname as user $dbuser"); |
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break; |
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case 'pgsql': |
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if (($dbhost == '') || ($dbhost == '_socket')) { |
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if (! $dbconn=pg_pconnect("dbname=$dbname user=$dbuser password=$dbpass")) |
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print_db_error("Cannot connect to local pgsql socket as user $dbuser"); |
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} else { |
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if ($dbport == '') { |
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if (! $dbconn=pg_pconnect("dbname=$dbname host=$dbhost user=$dbuser password=$dbpass")) |
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print_db_error("Cannot connect to pgsql host $dbhost as user $dbuser"); |
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} else { |
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if (! $dbconn=pg_pconnect("dbname=$dbname host=$dbhost port=$dbport user=$dbuser password=$dbpass")) |
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print_db_error("Cannot connect to pgsql host $dbhost:$dbport as user $dbuser"); |
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} |
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} |
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$cur_row_array = array(); |
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$num_rows_array = array(); |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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} |
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// ----------------------------------------------- |
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// db_numrows($res) |
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// ----------------------------------------------- |
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function db_numrows($res) { |
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global $dbtype; |
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global $dbodbc; |
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if ($dbodbc) { |
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$rows=odbc_num_rows($res); |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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$rows=mysql_numrows($res); |
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break; |
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case 'pgsql': |
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$rows=pg_numrows($res); |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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return($rows); |
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} |
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// ----------------------------------------------- |
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// db_query($query) |
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// ----------------------------------------------- |
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function db_query($query) { |
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global $dbtype; |
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global $dbodbc; |
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global $dbconn; |
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global $cur_row_array; |
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global $num_rows_array; |
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if ($dbodbc) { |
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$res=odbc_exec($dbconn,$query); |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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$res=mysql_query($query); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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if (! $pres=OCIPArse($dbconn,$query)) return $pres; |
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$res=OCIExecute($pres); |
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if ($res) return ($pres); |
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break; |
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case 'oracle7': |
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if (! $pres=ora_parse($dbconn, $query)) return $pres; |
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$res=ora_exec($dbconn); |
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if ($res) return ($pres); |
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break; |
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case 'pgsql': |
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$res=pg_exec($dbconn,$query); |
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$cur_row_array[$res]=0; |
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$num_rows_array[$res]=db_numrows($res); |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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return($res); |
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} |
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// ----------------------------------------------- |
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// db_fetchrow($res) |
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// ----------------------------------------------- |
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function db_fetchrow($res) { |
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global $dbtype; |
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global $dbodbc; |
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global $dbconn; |
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global $cur_row_array; |
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global $num_rows_array; |
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if ($dbodbc) { |
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if (! odbc_fetch_into($res,&$row)) $row=array(); |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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$row=mysql_fetch_row($res); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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$result=OCIFetchInto($res,&$row,OCI_NUM+OCI_RETURN_NULLS ); |
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if (! $result) $row=array(); |
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break; |
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case 'oracle7': |
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$result=ora_fetch($dbconn); |
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$errno=ora_errorcode($dbconn); |
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if(1403 == $errno || !$result) |
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{ // 1043 means no more records found |
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return array(); |
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} |
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for($ix=0;$ix<ora_numcols($dbconn);$ix++) |
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{ |
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$col=strtolower(ora_columnname($dbconn,$ix)); |
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$value=ora_getcolumn($dbconn,$ix); |
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$row[ "$col" ] = $value; |
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$row[ $ix ] = $value; |
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} |
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break; |
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case 'pgsql': |
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if ($cur_row_array[$res] >= $num_rows_array[$res]) { |
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$row=array(); |
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} else { |
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$row=pg_fetch_row($res,$cur_row_array[$res]); |
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$cur_row_array[$res]++; |
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} |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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return($row); |
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} |
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// ----------------------------------------------- |
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// db_dataseek($res,$from) |
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// ----------------------------------------------- |
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function db_dataseek($res,$from) { |
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global $dbtype; |
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global $dbodbc; |
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global $cur_row_array; |
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if ($dbodbc) { |
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$dataseek=1; |
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for ($i=0; $i<$from; $i++) { |
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$row=db_fetchrow($res); |
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if (! $row) { |
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$dataseek=0; |
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break; |
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} |
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} |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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$dataseek=mysql_data_seek($res,$from); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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case 'oracle7': |
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$dataseek=1; |
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for ($i=0; $i<$from; $i++) { |
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$row=db_fetchrow($res); |
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if (! $row) { |
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$dataseek=0; |
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break; |
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} |
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} |
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break; |
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case 'pgsql': |
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$dataseek=1; |
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$cur_row_array[$res]=$from; |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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return($dataseek); |
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} |
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// ----------------------------------------------- |
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// db_freeresult($res) |
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// ----------------------------------------------- |
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function db_freeresult($res) { |
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global $dbtype; |
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global $dbodbc; |
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if ($dbodbc) { |
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odbc_free_result($res); |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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mysql_free_result($res); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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OCIFreeStatement($res); |
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break; |
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case 'oracle7': |
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break; |
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case 'pgsql': |
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pg_freeresult($res); |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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} |
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// ----------------------------------------------- |
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// db_error() |
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// ----------------------------------------------- |
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function db_error() { |
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global $dbtype; |
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global $dbodbc; |
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global $dbconn; |
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if ($dbodbc) { |
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$error='ODBC error occured'; |
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} else { |
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switch($dbtype) { |
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case 'mysql': |
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$error=mysql_error(); |
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break; |
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case 'oracle': |
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case 'oracle8': |
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$error=OCIError(); |
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break; |
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case 'oracle7': |
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$error=Ora_Error($dbconn); |
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break; |
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case 'pgsql': |
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$error=pg_errormessage(); |
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break; |
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default: |
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print_db_error("Unknown DBType: $dbtype"); |
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} |
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} |
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return $error; |
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} |
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// ----------------------------------------------- |
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// print_db_error($str) |
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// ----------------------------------------------- |
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function print_db_error($str){ |
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print "$str\n"; |
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exit; |
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} |
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?> |
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