Руководство по PHP
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mysql_num_rows

(PHP 3, PHP 4 )

mysql_num_rows -- Get number of rows in result

Description

int mysql_num_rows ( resource result)

mysql_num_rows() returns the number of rows in a result set. This command is only valid for SELECT statements. To retrieve the number of rows affected by a INSERT, UPDATE or DELETE query, use mysql_affected_rows().

Пример 1. mysql_num_rows() example

<?php

$link = mysql_connect("localhost", "mysql_user", "mysql_password");
mysql_select_db("database", $link);

$result = mysql_query("SELECT * FROM table1", $link);
$num_rows = mysql_num_rows($result);

echo "$num_rows Rows\n";

?>

Замечание: If you use mysql_unbuffered_query(), mysql_num_rows() will not return the correct value until all the rows in the result set have been retrieved.

See also mysql_affected_rows(), mysql_connect(), mysql_data_seek(), mysql_select_db(), and mysql_query().

For downward compatibility mysql_numrows() can also be used. This is deprecated however.

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mysql_num_fieldsУровень вышеmysql_pconnect