Reads image from open filehandle

# Imagick::readImageFile

(PECL imagick 2, PECL imagick 3)

Imagick::readImageFile — Reads image from open filehandle

### 说明

public function Imagick::readImageFile(resource `$filehandle`, string `$fileName` = `null`): bool

Reads image from open filehandle

### 参数

`filehandle`

`fileName`

### 返回值

成功时返回 `true`。

### 错误／异常

错误时抛出 ImagickException。

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