PHP Manual
mysqli_result
Gets the number of rows in the result set

mysqli_result::$num_rows

mysqli_num_rows

(PHP 5, PHP 7, PHP 8)

mysqli_result::$num_rows -- mysqli_num_rows — Gets the number of rows in the result set

Description

Object-oriented style

int|string $mysqli_result->num_rows;

Procedural style

mysqli_num_rows(mysqli_result $result): int|string

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. This function returns 0 for unbuffered result sets unless all rows have been fetched from the server.

Parameters

result: Procedural style only: A mysqli_result object returned by mysqli_query(), mysqli_store_result(), mysqli_use_result() or mysqli_stmt_get_result().

Return Values

An int representing the number of fetched rows. Returns 0 in unbuffered mode unless all rows have been fetched from the server.

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

Examples

Example #1 Object-oriented style


<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

$result = $mysqli->query("SELECT Code, Name FROM Country ORDER BY Name");

/* Get the number of rows in the result set */
$row_cnt = $result->num_rows;

printf("Result set has %d rows.\n", $row_cnt);

Example #2 Procedural style


<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

$result = mysqli_query($link, "SELECT Code, Name FROM Country ORDER BY Name");

/* Get the number of rows in the result set */
$row_cnt = mysqli_num_rows($result);

printf("Result set has %d rows.\n", $row_cnt);

The above examples will output:

Result set has 239 rows.

Notes

Note:
In contrast to the mysqli_stmt_num_rows() function, this function doesn't have object-oriented method variant. In the object-oriented style, use the getter property.