Imagick::writeImageFile

(PECL imagick 2 >= 2.3.0, PECL imagick 3)

Imagick::writeImageFile — Writes an image to a filehandle

public Imagick::writeImageFile(resource $filehandle, string $format = ?): bool

Writes the image sequence to an open filehandle. The handle must be opened with for example fopen. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。

filehandle: Filehandle where to write the image.
format: The image format. The list of valid format specifiers depends on the compiled feature set of ImageMagick, and can be queried at runtime via Imagick::queryFormats().

成功时返回 true。