(PECL pdflib >= 2.0.0)
PDF_set_layer_dependency — Define relationships among layers
$pdfdoc
, string $type
, string $optlist
) : bool
Defines hierarchical and group relationships among layers. 锟缴癸拷时锟斤拷锟斤拷 TRUE
锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE
锟斤拷
This function requires PDF 1.5.