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编写PHP脚本过滤用户上传的图片

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Release: 2016-06-06 20:02:30
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这篇文章主要介绍了编写PHP脚本过滤用户上传的图片,至于是不是能达到设想的准确过滤那种图片的效果,这个就...需要的朋友可以参考下

示例   下载

我在phpclasses.org上面偶然发现一个很有用的,由Bakr Alsharif开发的可以帮助开发者基于皮肤像素点来检测图片裸照的类文件.

它会分析在一张图片的不同部分使用的颜色,并决定其是否匹配人类皮肤颜色的色调.

作为分析的结果,他会返回一个反映图片包含裸露的可能性的分值.

此外,他还可以输出被分析的图片,上面对使用给定颜色的肤色的像素进行了标记.

当前它可以对PNG,GIF和JPEG图片进行分析.

下面展示了如何使用这个PHP类.
让我们先从包含裸体过滤器,nf.php文件开始.
 

include ('nf.php');

接下来,,创建一个新的名叫ImageFilter的类,然后把它放到一个叫做$filter的变量中.
 

$filter = new ImageFilter;

获取图片的分值并将其放到一个$score变量中.
 

$score = $filter -> GetScore($_FILES['img']['tmp_name']);

如果图片分值大于或等于60%,那就展示一条(告警)消息.

 

if($score >= 60){ /*Message*/ }

下面是所有的PHP代码:

GetScore($_FILES['img']['tmp_name']); /*If the $score variable is set*/ if (isset($score)) { /*If the image contains nudity, display image score and message. Score value if more than 60%, it is considered an adult image.*/ if ($score >= 60) { echo "Image scored " . $score . "%, It seems that you have uploaded a nude picture."; /*If the image doesn't contain nudity*/ } else if ($score

标记语言

我们可以使用一个基础的HTML表单上传图片.
 

Upload image:
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