Руководство по PHP
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# mysqli_num_rows

(PHP 5)

mysqli_num_rows -- Gets the number of rows in a result

## Description

Procedural style:

mixed mysqli_num_rows ( mysqli result )

Object oriented style (property):

class mysqli {
mixed num_rows
}

Returns the number of rows in the result set.

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

## Возвращаемые значения

Returns number of rows in the result set.

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

## Смотрите также

mysqli_affected_rows(), mysqli_store_result(), mysqli_use_result() и mysqli_query().

## Примеры

Пример 1. Object oriented style
`<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } if ($result = $mysqli->query("SELECT Code, Name FROM Country 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 */ $mysqli->close(); ?>`

Пример 2. Procedural style
`<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } if ($result = mysqli_query($link, "SELECT Code, Name FROM Country ORDER BY Name")) { /* determine number of rows result set */ $row_cnt = mysqli_num_rows($result); printf("Result set has %d rows.\n", $row_cnt); /* close result set */ mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?>`

Результат выполнения данного примера:

    Result set has 239 rows.

Пред. | Начало | След.
mysqli_num_fields | Уровень выше | mysqli_options