Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: Return type of DatabaseStatementEmpty::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/database.inc).
Deprecated function: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in drupal_random_bytes() (line 2268 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/bootstrap.inc).
Deprecated function: Return type of DatabaseCondition::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 1652 of /home/thachcao/domains/thachcaoqt556.com/public_html/includes/database/query.inc).
Deprecated function: rtrim(): Passing null to parameter #1 ($string) of type string is deprecated trong url() (dòng 2349 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated trong url_is_external() (dòng 2393 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated trong url_is_external() (dòng 2395 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: ltrim(): Passing null to parameter #1 ($string) of type string is deprecated trong url() (dòng 2311 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated trong url_is_external() (dòng 2393 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated trong url_is_external() (dòng 2395 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Deprecated function: ltrim(): Passing null to parameter #1 ($string) of type string is deprecated trong url() (dòng 2311 của /home/thachcao/domains/thachcaoqt556.com/public_html/includes/common.inc).
Trần thạch cao cách âm là loại trần được cấu tạo từ các tấm thạch cao kết hợp với các vật liệu tiêu âm hoặc cách âm chuyên dụng như bông khoáng, bông thủy tinh, xốp EPS, cao su non… Mục tiêu chính là giảm thiểu tối đa tiếng ồn từ bên ngoài và ngăn chặn âm thanh thoát ra ngoài.
