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# maxdb_field_count

(PECL)

maxdb_field_count

(no version information, might be only in CVS)

maxdb->field_count -- Returns the number of columns for the most recent query

## Description

Procedural style:

int maxdb_field_count ( resource link )

Object oriented style (method):

class maxdb {
int 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() 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

## Example

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.

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