msql_num_rows

(PHP 4, PHP 5)

msql_num_rows — Get number of rows in result

Описание

int msql_num_rows ( resource $query_identifier )

msql_num_rows() returns the number of rows in a result set.

Список параметров

result

The result resource that is being evaluated. This result comes from a call to msql_query().

Возвращаемые значения

Returns the number of rows in the result set.

Смотрите также

Коментарии

Автор:
If you would like to just find out how many rows are returned by a query without actually using the results, then it's much more efficient to use SQL count function (specially for large tables with millions of rows).

<?php

$sql 
"SELECT COUNT(indexed-field) AS cnt FROM some-table";
$r mysql_query($sql);
$row mysql_fetch_object($r);
echo 
$row->cnt;
?>
2009-04-21 05:23:57
http://php5.kiev.ua/manual/ru/function.msql-num-rows.html

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