--TEST--
mysqli_num_rows()
--EXTENSIONS--
mysqli
--SKIPIF--
<?php
require_once 'skipifconnectfailure.inc';
?>
--FILE--
<?php
    require 'table.inc';

    function func_test_mysqli_num_rows(mysqli $link, string $query, int|null $expected, int $offset) {

        if (!$res = mysqli_query($link, $query, MYSQLI_STORE_RESULT)) {
            printf("[%03d] [%d] %s\n", $offset, mysqli_errno($link), mysqli_error($link));
            return;
        }

        if (!is_bool($res)) {
            if ($expected !== ($tmp = mysqli_num_rows($res)))
                printf("[%03d] Expecting %s/%d, got %s/%d\n", $offset + 1,
                    gettype($expected), $expected,
                    gettype($tmp), $tmp);

            mysqli_free_result($res);

            try {
                mysqli_num_rows($res);
            } catch (Error $exception) {
                echo $exception->getMessage() . "\n";
            }
        }
    }

    func_test_mysqli_num_rows($link, "SELECT 1 AS a", 1, 5);
    func_test_mysqli_num_rows($link, "SHOW VARIABLES LIKE '%nixnutz%'", 0, 10);
    func_test_mysqli_num_rows($link, "INSERT INTO test(id, label) VALUES (100, 'z')", NULL, 15);
    func_test_mysqli_num_rows($link, "SELECT id FROM test LIMIT 2", 2, 20);

    if ($res = mysqli_query($link, 'SELECT COUNT(id) AS num FROM test')) {

        $row = mysqli_fetch_assoc($res);
        mysqli_free_result($res);

        func_test_mysqli_num_rows($link, "SELECT id, label FROM test", (int)$row['num'], 25);

    } else {
        printf("[030] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
    }

    print "run_tests.php don't fool me with your 'ungreedy' expression '.+?'!\n";

    if ($res = mysqli_query($link, 'SELECT id FROM test', MYSQLI_USE_RESULT)) {

        mysqli_fetch_row($res);
        try {
            var_dump(mysqli_num_rows($res));
        } catch (\Error $e) {
            echo $e->getMessage() . \PHP_EOL;
        }

        mysqli_free_result($res);
    } else {
        printf("[032] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
    }

    mysqli_close($link);
    print "done!";
?>
--CLEAN--
<?php
    require_once 'clean_table.inc';
?>
--EXPECT--
mysqli_result object is already closed
mysqli_result object is already closed
mysqli_result object is already closed
mysqli_result object is already closed
run_tests.php don't fool me with your 'ungreedy' expression '.+?'!
mysqli_num_rows() cannot be used in MYSQLI_USE_RESULT mode
done!
