Procedural style
Object oriented style
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.
Note:
This result set pointer can be passed as an argument to any of the field-based functions that process result set metadata, such as:
The result set structure should be freed when you are done with it, which you can do by passing it to maxdb_free_result()
Note:
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().
maxdb_stmt_result_metadata() returns a result resource or FALSE
if an error occurred.
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); $maxdb->query("CREATE TABLE temp.friends (id int, name varchar(20))"); $maxdb->query("INSERT INTO temp.friends VALUES (1,'Hartmut')"); $maxdb->query("INSERT INTO temp.friends VALUES (2, 'Ulf')"); $stmt = $maxdb->prepare("SELECT id, name FROM temp.friends"); $stmt->execute(); /* get resultset for metadata */ $result = $stmt->result_metadata(); /* retrieve field information from metadata result set */ $field = $result->fetch_field(); printf("Fieldname: %s\n", $field->name); /* close resultset */ $result->close(); /* close connection */ $maxdb->close(); ?>
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); maxdb_query($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); ?>
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