Gets the number of rows in a result

# maxdb_num_rows

# maxdb::num_rows

(PECL maxdb >= 1.0)

maxdb_num_rows -- maxdb::num_rows — Gets the number of rows in a result

### Descrierea

Stil procedural

maxdb_num_rows ( resource `$result` ) : int

Stil obiect-orientat

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.

### Valorile întoarse

Returns number of rows in the result set.

> Notă:

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

### Exemple

Example #1 Stil obiect-orientat

`<?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 Stil procedural

`<?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);
?>`

Exemplul de mai sus va afișa ceva similar cu:

    Result set has 15 rows.

### A se vedea și

- 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