7.3.11.15 mysqli_result::$num_rows, mysqli_num_rows

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• mysqli_result::$num_rows

  mysqli_num_rows

  Gets the number of rows in a result

Description

Object oriented style

int mysqli_result->num_rows ;

Procedural style

int mysqli_num_rows(mysqli_result result);

Returns the number of rows in the result set.

The behaviour of mysqli_num_rows depends on whether buffered or unbuffered result sets are being used. For unbuffered result sets, mysqli_num_rows will not return the correct number of rows until all the rows in the result have been retrieved.

Parameters

result

Procedural style only: A result set identifier returned by mysqli_query, mysqli_store_result or mysqli_use_result.

Return Values

Returns number of rows in the result set.

Note

If the number of rows is greater than PHP_INT_MAX, the number will be returned as a string.

Examples

Example 7.139 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();
?>

Example 7.140 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);
?>

The above examples will output:

Result set has 239 rows.

See Also

mysqli_affected_rows

mysqli_store_result

mysqli_use_result

mysqli_query