PDF_set_layer_dependency
(PECL pdflib >= 2.0.0)
PDF_set_layer_dependency — Define relationships among layers
说明
PDF_set_layer_dependency (
resource
$pdfdoc
,
string $type
,
string $optlist
) :
bool
Defines hierarchical and group relationships among layers. 成功时返回 TRUE
, 或者在失败时返回 FALSE
。
This function requires PDF 1.5.