dbx_query

Description

Returns a dbx_result_object or 1 on success (a result object is only returned for sql-statements that return results) or 0 on failure. The flags parameter is used to control the amount of information that is returned. It may be any combination of the constants DBX_RESULT_INFO, DBX_RESULT_INDEX, DBX_RESULT_ASSOC, OR-ed together. DBX_RESULT_INFO provides info about columns, such as field names and field types. DBX_RESULT_INDEX returns the results in a 2d indexed array (e.g. data[2][3], where 2 is the row (or record) number and 3 is the column (or field) number), where the first row and column are indexed at 0. DBX_RESULT_ASSOC associates the column indices with field names. Note that DBX_RESULT_INDEX is always returned, regardless of the flags parameter. If DBX_RESULT_ASSOC is specified, DBX_RESULT_INFO is also returned even if it wasn't specified. This means that effectively only the combinations DBX_RESULT_INDEX, DBX_RESULT_INDEX | DBX_RESULT_INFO and DBX_RESULT_INDEX | DBX_RESULT_INFO | DBX_RESULT_ASSOC are possible. This last combination is the default if the flags parameter isn't specified. Associated results are actual references to the indexed data, so if you modify data[0][0], then data[0]['fieldnameforfirstcolumn'] is modified as well.

A dbx_result_object has five members (possibly four depending on flags), 'handle', 'cols', 'rows', 'info' (optional) and 'data'. Handle is a valid result identifier for the specified module, and as such can be used in module-specific functions, as seen in the example:

$result = dbx_query ($link, "SELECT id FROM tbl");
mysql_field_len ($result->handle, 0);
      

The cols and rows members contain the number of columns (or fields) and rows (or records) respectively, e.g.

$result = dbx_query ($link, "SELECT id FROM tbl");
echo "result size: " . $result->rows . " x " . $result->cols . "<br>\n";
      

The info member is only returned if DBX_RESULT_INFO and/or DBX_RESULT_ASSOC are specified in the flags parameter. It is a 2d array, that has two named rows ("name" and "type") to retrieve column information, e.g.

$result = dbx_query ($link, "SELECT id FROM tbl");
echo "column name: " . $result->info["name"][0] . "<br>\n";
echo "column type: " . $result->info["type"][0] . "<br>\n";
      

The data member contains the actual resulting data, possibly associated with column names as well. If DBX_RESULT_ASSOC is set, it is possible to use $result->data[2]["fieldname"].

<?php
$link = dbx_connect ("odbc", "", "db", "username", "password")
    or die ("Could not connect");
$result = dbx_query ($link, "SELECT id, parentid, description FROM tbl");
if ($result==0) echo "Query failed\n<br>";
elseif ($result==1) {
    echo "Query executed successfully\n<br>";
} else {
    $rows=$result->rows;
    $cols=$result->cols;
    echo "<p>table dimension: {$result->rows} x {$result->cols}<br><table border=1>\n";
    echo "<tr>";
    for ($col=0; $col<$cols; ++$col) {
        echo "<td>-{$result->info["name"][$col]}-<br>-{$result->info["type"][$col]}-</td>";
    }
    echo "</tr>\n";
    for ($row=0; $row<$rows; ++$row){
        echo "<tr>";
        for ($col=0; $col<$cols; ++$col) {
            echo "<td>-{$result->data[$row][$col]}-</td>";
        }
        echo "</tr>\n";
    }
    echo "</table><p>\n";
    echo "table dimension: {$result->rows} x id, parentid, description<br><table border=1>\n";
    for ($row=0; $row<$rows; ++$row) {
        echo "<tr>";
        echo "<td>-{$result->data[$row]["id"]}-</td>";
        echo "<td>-{$result->data[$row]["parentid"]}-</td>";
        echo "<td>-{$result->data[$row]["description"]}-</td>";
        echo "</tr>\n";
    }
    echo "</table><p>\n";
}
dbx_close($link);
?>
     

See also: dbx_connect().