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(PECL pdflib >= 2.0.0)

PDF_set_layer_dependencyDefine relationships among layers


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.

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