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  • Imagick
  • Generates an SHA-256 message digest

Imagick::getImageSignature

(PECL imagick 2.0.0)

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

说明

Imagick::getImageSignature ( void ) : string

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

返回值

Returns a string containing the SHA-256 hash of the file.

错误/异常

错误时抛出 ImagickException。

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