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maxdb_num_rows
maxdb::num_rows
(PECL maxdb >= 1.0)
maxdb_num_rows -- maxdb::num_rows — Gets the number of rows in a result
Description
Procedural style
$result
) : intObject oriented style
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() - Gets the number of affected rows in a previous MaxDB operation
- maxdb_store_result() - Transfers a result set from the last query
- maxdb_use_result() - Initiate a result set retrieval
- maxdb_query() - Performs a query on the database
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-maxdb-num-rows.html
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References
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