If you want to be able to do the opposite (output your gmagick object to a blob), then use getImageBlob() like this:
$outputstring = $im->getImageBlob();
This is apparently undocumented here, but since the entire library is ported/modeled on the imagemagick library, it makes sense that it uses the same name as imagemagick.
Gmagick::readimageblob
(PECL gmagick >= Unknown)
Gmagick::readimageblob — Reads image from a binary string
說明
public void Gmagick::readimageblob
( string
$imageContents
[, string $filename
] )Reads image from a binary string.
參數
-
imageContents -
Content of image
-
filename -
The image filename.
回傳值
The Gmagick object on success
錯誤/例外
錯誤時拋出 GmagickException。
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User Contributed Notes 1 note
MPLong ¶
13 years ago
