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| Code | |||||
This is Yet Another Sql Abstraction Library. Include it in your script and you can use the most important SQL functions without worrying about the SQL backend. Currently supports Mysql, mSQL (untested), PostgreSQL and ODBC. Beware: this is ALPHA code, use it at your own risk! <? /* * SAL - SQL Abstraction Library * version 0.01 * Gianugo Rabellino <nemorino@opera.it> * * - 28/07: MySQL Support - mSQL support * - 29/07: PostgreSQL Support * - 03/08: ODBC Support */ /* * * Set the variable $dbtype to any of the following * values: MySQL, mSQL, Postgres, ODBC before including * this library * */ /* $dbtype = "MySQL"; */ /* $dbtype = "mSQL"; */ /* $dbtype = "PostgreSQL"; */ /* $dbtype = "ODBC"; */ /* * SQL_connect($host, $user, $password, $db) * returns the connection ID */ function SQL_connect($host, $user, $password, $db) { global $dbtype; switch ($dbtype) { case "MySQL": $conn=mysql_pconnect($host, $user, $password); mysql_select_db($db); return $conn; break;; case "mSQL": $conn=msql_pconnect($host); msql_select_db($db); return $conn; break;; case "PostgreSQL": $conn=pg_pconnect($host,"5432","",$db); return $conn; break;; case "ODBC": $conn=odbc_pconnect($db,$user,$password); return $conn; break;; default: $conn=mysql_pconnect($host, $user, $password); mysql_select_db($db); return $conn; break;; } } /* * SQL_query($host, $user, $password, $db) * executes an SQL statement, returns a result identifier */ function SQL_query($query, $id) { global $dbtype; switch ($dbtype) { case "MySQL": $res=mysql_query($query, $id); return $res; break;; case "mSQL": $res=msql_query($query, $id); return $res; break;; case "PostgreSQL": $res=pg_exec($id,$query); return $res; break;; case "ODBC": $rid=odbc_prepare($id,$query); $res=odbc_execute($rid); return $res; break;; default: $res=mysql_query($query, $id); return $res; break;; } } /* * SQL_num_rows($host, $user, $password, $db) * given a result identifier, returns the number of affected rows */ function SQL_num_rows($res) { global $dbtype; switch ($dbtype) { case "MySQL": $rows=mysql_num_rows($res); return $rows; break;; case "mSQL": $rows=msql_num_rows($res); return $rows; break;; case "PostgreSQL": $rows=pg_numrows($res); return $rows; break;; case "ODBC": $rows=odbc_num_rows($res); return $rows; break;; default: $rows=mysql_num_rows($res); return $rows; break;; } } /* * SQL_fetchrow($res,$row) * given a result identifier, returns an array with the resulting row * Needs also a row number for compatibility with PostgreSQL */ function SQL_fetch_row($res, $nr) { global $dbtype; switch ($dbtype) { case "MySQL": $row = array(); $row = mysql_fetch_row($res); return $row; break;; case "mSQL": $row = array(); $row = msql_fetch_row($res); return $row; break;; case "PostgreSQL": $row = array(); $row = pg_fetch_row($res,$nr); return $row; break;; case "ODBC": $row = array(); $cols = odbc_fetch_into($res, $nr, &$row); return $row; break;; default: $row = array(); $row = mysql_fetch_row($res); return $row; break;; } } /* * SQL_fetch_array($res,$row) * given a result identifier, returns an associative array * with the resulting row using field names as keys. * Needs also a row number for compatibility with PostgreSQL. */ function SQL_fetch_array($res, $nr) { global $dbtype; switch ($dbtype) { case "MySQL": $row = array(); $row = mysql_fetch_array($res); return $row; break;; case "mSQL": $row = array(); $row = msql_fetch_array($res); return $row; break;; case "PostgreSQL": $row = array(); $row = pg_fetch_array($res,$nr); return $row; break;; /* * ODBC doesn't have a native _fetch_array(), so we have to * use a trick. Beware: this might cause HUGE loads! */ case "ODBC": $row = array(); $result = array(); $result = odbc_fetch_row($res, $nr); $nf = count($result)+2; /* Field numbering starts at 1 */ for($count=1; $count < $nf; $count++) { $field_name = odbc_field_name($res, $count); $field_value = odbc_result($res, $field_name); $row[$field_name] = $field_value; } return $row; break;; } } ?> | |||||
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