Php/docs/imagick.getimagesignature

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Imagick::getImageSignature

(PECL imagick 2, PECL imagick 3)

Imagick::getImageSignatureGenerates an SHA-256 message digest


说明

public Imagick::getImageSignature ( ) : 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。