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# maxdb_stmt_result_metadata

(no version information, might be only in CVS)

maxdb_stmt_result_metadata -- Returns result set metadata from a prepared statement

## Description

Procedural style:

mixed maxdb_stmt_result_metadata ( resource stmt )

If a statement passed to maxdb_prepare() is one that produces a result set, maxdb_stmt_result_metadata() returns the result resource that can be used to process the meta information such as total number of fields and individual field information.

> 注: This result set pointer can be passed as an argument to any of the field-based functions that process result set metadata, such as:

> - maxdb_num_fields()

> - maxdb_fetch_field()

> - maxdb_fetch_field_direct()

> - maxdb_fetch_fields()

> - maxdb_field_count()

> - maxdb_field_seek()

> - maxdb_field_tell()

> - maxdb_free_result()

The result set structure should be freed when you are done with it, which you can do by passing it to maxdb_free_result()

> 注: The result set returned by maxdb_stmt_result_metadata() contains only metadata. It does not contain any row results. The rows are obtained by using the statement handle with maxdb_fetch().

## Return Values

maxdb_stmt_result_metadata() returns a result resource or `FALSE` if an error occured.

## See also:

maxdb_prepare(), maxdb_free_result()

## Example

範例 1. Procedural style

`<?php
$link = maxdb_connect("localhost", "MONA", "RED");
maxdb_query($link, "CREATE TABLE temp.friends (id int, name varchar(20))");
maxdb_query($link, "INSERT INTO temp.friends VALUES (1,'Hartmut')");
maxdb_query($link, "INSERT INTO temp.friends VALUES (2, 'Ulf')");
$stmt = maxdb_prepare($link, "SELECT id, name FROM temp.friends");
maxdb_stmt_execute($stmt);
/* get resultset for metadata */
$result = maxdb_stmt_result_metadata($stmt);
/* retrieve field information from metadata result set */
$field = maxdb_fetch_field($result);
printf("Fieldname: %s\n", $field->name);
/* close resultset */
maxdb_free_result($result);
/* close connection */
maxdb_close($link);
?>`

The above examples would produce the following output:

    Fieldname: ID

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