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.