imagelayereffect

(PHP 4 >= 4.3.0, PHP 5)

imagelayereffect --  Set the alpha blending flag to use the bundled libgd layering effects

Description

bool imagelayereffect ( resource image, int effect )

警告

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注: This function is only available if PHP is compiled with the bundled version of the GD library.

注: This function requires GD 2.0.1 or later (2.0.28 or later is recommended).