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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
(PECL pdflib >= 2.0.0)
PDF_set_layer_dependency — Define relationships among layers
$pdfdoc
, string $type
, string $optlist
)
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.