PHP ItemTable::get_items_count示例

    $timezones = array("Africa" => "1", "America" => "2", "Asia" => "16", "Australia" => "64", "Europe" => "128");
    foreach (timezone_identifiers_list($timezones[$_POST["timeZoneRegion"]]) as $tz) {
        $tzs = explode("/", $tz, 2);
        echo '<option value="' . $tzs[1] . '">' . $tzs[1] . '</option>';
    }
}
/*--------------------------messages.php----------------------------*/
if (isset($_POST["sessionName"])) {
    echo ConversationTable::count_unread_conversations($_POST["sessionName"]);
}
/*--------------------------------received_messages.php----------------*/
if (isset($_POST["checkedId"])) {
    echo ConversationTable::update_multiple_conversation_status($_SESSION["username"], $_POST["checkedId"], $_POST["newStatus"]);
}
if (isset($_POST["getItemCount"])) {
    echo ItemTable::get_items_count();
}
if (isset($_POST["addItem"])) {
    try {
        if (!ItemTable::add_new_item($_POST["itemName"], $_POST["itemUnit"])) {
            echo '<div class="error">Item already exists</div>';
        } else {
            if (!empty($_POST["itemQuant"])) {
                BaseQuantityTable::set_base_quantity($_POST["itemName"], $_POST["itemQuant"]);
            }
            echo '<div class="error">Item added successfully</div>';
        }
    } catch (Exception $e) {
        echo '<div class="error">' . $e->getMessage() . '</div>';
    }
}