调用未定义函数 exif_imagetype()

Call to undefined function exif_imagetype()(调用未定义函数 exif_imagetype())

问题描述

我正在尝试为 image-types 获取 Mime-Type，如下所示:

I am trying to get Mime-Type for image-types as follow:

if(!empty($_FILES['uploadfile']['name']) && $_FILES['uploadfile']['error'] == 0){    

    $file = $_FILES['uploadfile']['tmp_name'];
    $file_type = image_type_to_mime_type(exif_imagetype($file));

    switch($file_type){

        // Codes Here

    }

}

但它总是给出错误Call to undefined function exif_imagetype().我在这里做错了什么?

But it always gives the error Call to undefined function exif_imagetype(). What am I doing wrong here?

推荐答案

在 php.ini 中启用以下扩展并重新启动服务器.

Enable the following extensions in php.ini and restart your server.

扩展=php_mbstring.dll
extension=php_exif.dll

extension=php_mbstring.dll
extension=php_exif.dll

然后检查phpinfo()看是否设置为on/off

Then check phpinfo() to see if it is set to on/off

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