<?php

class mysqli
{
    /**
     * @var int<-1, max>|numeric-string
     */
    public int|string $affected_rows;
}

/**
 * @template TValue
 *
 * @template-implements Traversable<int, TValue>
 */
class mysqli_result implements Traversable
{
    /**
     * @var int<0, max>|numeric-string
     */
    public int|string $num_rows;

    /**
     * @psalm-taint-sink callable $class
     *
     * @template T of object
     * @param class-string<T> $class
     * @param array $constructor_args
     * @return T|null|false
     */
    function fetch_object(string $class = stdClass::class, array $constructor_args = []): object|false|null {}
}

class mysqli_stmt
{
    /**
     * @var int<-1, max>|numeric-string
     */
    public int|string $affected_rows;

    public int $errno;

    /**
     * @var list<array{errno: int, sqlstate: string, error: string}>
     */
    public $error_list;

    public string $error;

    /**
     * @var 0|positive-int
     */
    public int $field_count;

    public int|string $insert_id;

    /**
     * @var int<0,max>|numeric-string
     */
    public int|string $num_rows;

    /**
     * @var 0|positive-int
     */
    public int $param_count;

    /**
     * @var non-empty-string
     */
    public string $sqlstate;
}

/**
 * @psalm-taint-sink callable $class
 *
 * @template T of object
 * @template TValue
 *
 * @param mysqli_result<TValue> $result
 * @param class-string<T> $class
 * @param array $constructor_args
 * @return T|null|false
 */
function mysqli_fetch_object(mysqli_result $result, string $class = stdClass::class, array $constructor_args = []): object|false|null {}