Writes frames to a filehandle

# Imagick::writeImagesFile

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

Imagick::writeImagesFile — Writes frames to a filehandle

### 说明

public function Imagick::writeImagesFile(resource `$filehandle`, string `$format` = ?): bool

Writes all image frames into an open filehandle. This method can be used to write animated gifs or other multiframe images into open filehandle. 此方法在Imagick基于ImageMagick 6.3.6以上版本编译时可用。

### 参数

`filehandle`

  Filehandle where to write the images.

`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().

### 返回值

成功时返回 `true`。

### 参见

- Imagick::queryFormats() - Returns formats supported by Imagick

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