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MAXDB_FIELD_COUNT(3) 1 MAXDB_FIELD_COUNT(3) maxdb_field_count - Returns the number of columns for the most recent query Procedural style SYNOPSIS
int maxdb_field_count (resource $link) DESCRIPTION
Object oriented style int maxdb::field_count (void ) Returns the number of columns for the most recent query on the connection represented by the $link parameter. This function can be useful when using the maxdb_store_result(3) function to determine if the query should have produced a non-empty result set or not without knowing the nature of the query. RETURN VALUES
An integer representing the number of fields in a result set. EXAMPLES
Example #1 Object oriented style <?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); maxdb_report (MAXDB_REPORT_OFF); $maxdb->query("DROP TABLE friends"); maxdb_report (MAXDB_REPORT_ERROR); $maxdb->query( "CREATE TABLE friends (id int, name varchar(20))"); $maxdb->query( "INSERT INTO friends VALUES (1,'Hartmut')"); $maxdb->query( "INSERT INTO friends VALUES (2, 'Ulf')"); if ($maxdb->field_count()) { /* this was a select/show or describe query */ $result = $maxdb->store_result(); /* process resultset */ $row = $result->fetch_row(); /* free resultset */ $result->close(); } /* close connection */ $maxdb->close(); ?> Example #2 Procedural style <?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); maxdb_report (MAXDB_REPORT_OFF); maxdb_query($link,"DROP TABLE friends"); maxdb_report (MAXDB_REPORT_ERROR); maxdb_query($link, "CREATE TABLE friends (id int, name varchar(20))"); maxdb_query($link, "INSERT INTO friends VALUES (1,'Hartmut')"); maxdb_query($link, "INSERT INTO friends VALUES (2, 'Ulf')"); if (maxdb_field_count($link)) { /* this was a select/show or describe query */ $result = maxdb_store_result($link); /* process resultset */ $row = maxdb_fetch_row($result); /* free resultset */ maxdb_free_result($result); } /* close connection */ maxdb_close($link); ?> The above example produces no output. PHP Documentation Group MAXDB_FIELD_COUNT(3)
