dbx_queryPodręcznik PHPPoprzedniNastępnydbx_query (PHP 4 >= 4.0.6)dbx_query -- Send a query and fetch all results (if any)Descriptiondbx_result_object dbx_query ( dbx_link_object link_identifier, string sql_statement [, long flags]) 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"]. Przykład 1. dbx_query() example<?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); ?>Notatka: Always refer to the module-specific documentation as well. See also: dbx_connect(). PoprzedniSpis treściNastępnydbx_errorPoczątek rozdziałudbx_sort