Imagick::getImageSignature

(PECL imagick 2.0.0)

Imagick::getImageSignature — Generates an SHA-256 message digest

string Imagick::getImageSignature ( void )

Warning

本函数暂无文档，仅有参数列表。

Generates an SHA-256 message digest for the image pixel stream.

Returns a string containing the SHA-256 hash of the file, throwing an ImagickException on error.