<?php
// phpcs:ignoreFile

$conn = new mysqli($dbhost, $dbuser, $dbpass, $dbname);

if ($conn->connect_errno) {
    die('Error connecting to MySQL: ' . $conn->connect_error);
}

$conn->set_charset('utf8mb4');

if (!defined('MYSQL_ASSOC')) {
    define('MYSQL_ASSOC', MYSQLI_ASSOC);
}

if (!defined('MYSQL_NUM')) {
    define('MYSQL_NUM', MYSQLI_NUM);
}

if (!defined('MYSQL_BOTH')) {
    define('MYSQL_BOTH', MYSQLI_BOTH);
}

if (!function_exists('mysql_query')) {
    function mysql_query($query)
    {
        global $conn;

        return mysqli_query($conn, $query);
    }
}

if (!function_exists('mysql_fetch_assoc')) {
    function mysql_fetch_assoc($result)
    {
        return mysqli_fetch_assoc($result);
    }
}

if (!function_exists('mysql_fetch_array')) {
    function mysql_fetch_array($result, $result_type = MYSQL_BOTH)
    {
        return mysqli_fetch_array($result, $result_type);
    }
}

if (!function_exists('mysql_fetch_row')) {
    function mysql_fetch_row($result)
    {
        return mysqli_fetch_row($result);
    }
}

if (!function_exists('mysql_fetch_object')) {
    function mysql_fetch_object($result)
    {
        return mysqli_fetch_object($result);
    }
}

if (!function_exists('mysql_num_rows')) {
    function mysql_num_rows($result)
    {
        return mysqli_num_rows($result);
    }
}

if (!function_exists('mysql_numrows')) {
    function mysql_numrows($result)
    {
        return mysql_num_rows($result);
    }
}

if (!function_exists('mysql_real_escape_string')) {
    function mysql_real_escape_string($string)
    {
        global $conn;

        return mysqli_real_escape_string($conn, $string);
    }
}

if (!function_exists('mysql_insert_id')) {
    function mysql_insert_id()
    {
        global $conn;

        return mysqli_insert_id($conn);
    }
}

if (!function_exists('mysql_error')) {
    function mysql_error()
    {
        global $conn;

        return mysqli_error($conn);
    }
}

if (!function_exists('mysql_affected_rows')) {
    function mysql_affected_rows()
    {
        global $conn;

        return mysqli_affected_rows($conn);
    }
}

if (!function_exists('mysql_data_seek')) {
    function mysql_data_seek($result, $row_number)
    {
        return mysqli_data_seek($result, $row_number);
    }
}

if (!function_exists('mysql_result')) {
    function mysql_result($result, $row, $column = 0)
    {
        if (!mysqli_data_seek($result, $row)) {
            return null;
        }

        $data = mysqli_fetch_array($result, MYSQL_BOTH);

        if ($data === null) {
            return null;
        }

        return $data[$column] ?? null;
    }
}

if (!function_exists('mysql_free_result')) {
    function mysql_free_result($result)
    {
        return mysqli_free_result($result);
    }
}

if (!function_exists('mysql_close')) {
    function mysql_close($connection = null)
    {
        global $conn;

        $link = $connection ?: $conn;

        if ($link instanceof mysqli) {
            return mysqli_close($link);
        }

        return false;
    }
}
?>