MaxDB Functions
PHP Manual

maxdb_num_rows

maxdb::num_rows

Gets the number of rows in a result

Description

Procedural style

int maxdb_num_rows ( resource $result )

Object oriented style

int$maxdb->num_rows;

Returns the number of rows in the result set.

The use of maxdb_num_rows depends on whether you use buffered or unbuffered result sets. In case you use unbuffered resultsets maxdb_num_rows will not correct the correct number of rows until all the rows in the result have been retrieved.

Return Values

Returns number of rows in the result set.

Note:

If the number of rows is greater than maximal int value, the number will be returned as a string.

Examples

Example #1 Object oriented style

<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

if ($result = $maxdb->query("SELECT cno, name FROM hotel.customer ORDER BY name")) {

   /* determine number of rows result set */
   $row_cnt = $result->num_rows;

   printf("Result set has %d rows.\n", $row_cnt);

   /* close result set */
   $result->close();
}

/* close connection */
$maxdb->close();
?>

Example #2 Procedural style

<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

if ($result = maxdb_query($link, "SELECT cno, name FROM hotel.customer ORDER BY name")) {

   /* determine number of rows result set */
   $row_cnt = maxdb_num_rows($result);

   printf("Result set has %d rows.\n", $row_cnt);

   /* close result set */
   maxdb_free_result($result);
}

/* close connection */
maxdb_close($link);
?>

The above example will output something similar to:

Result set has 15 rows.

See Also

  • maxdb_affected_rows
  • maxdb_store_result
  • maxdb_use_result
  • maxdb_query