How PHP prevents users from uploading adult photos or nude photos

Source: Internet
Author: User
Tags html form

In this tutorial, we will learn how to prevent users from uploading adult photos or nude photos via PHP.

Sample Download

I stumbled upon a very useful phpclasses.org that was developed by Bakr Alsharif to help developers detect nude photos of pictures based on their skin pixels.

It analyzes the colors used in different parts of a picture and determines whether they match the color tones of the human skin.

As a result of the analysis, he returns a score that reflects the likelihood that the image will contain nudity.

In addition, he can output images that have been analyzed, which mark the pixels of the skin color using a given color.

Currently it can analyze png,gif and JPEG images.

Php

The following shows how to use this PHP class.

Let's start with a nf.php file containing a nude filter.

1 include (‘nf.php‘);

Next, create a new class called ImageFilter, and then put it in a variable called $filter.

1 $filternewImageFilter;

Gets the image's score and puts it into a $score variable.

1 $score$filter-> GetScore($_FILES[‘img‘][‘tmp_name‘]);

If the image score is greater than or equal to 60%, then a message is displayed.

123 if($score>= 60){/*Message*/}

Here is all the PHP code:

123456789101112131415161718 <?php/*Include the Nudity Filter file*/include(‘nf.php‘);/*Create a new class called $filter*/$filternewImageFilter;/*Get the score of the image*/$score $filter-> GetScore($_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*/    elseif($score< 0) {        echo"Congratulations, you have uploaded an non-nude image.";    }}?>
Markup language

We can upload images using a basic HTML form.

12345 <form method= "POST"  enctype= "Multipart/form-data"  action= "<?php echo  $SERVER [' php_self '];? >  " > UPLOAD&NBSP;IMAGE:&NBSP; Code class= "PHP plain" ><input type=   name= "img"  id= "img"  /> <input type= "submit"  value= "sumit  Image "  /> </FORM>
Summarize

Please remember that PHP is not able to detect all nude images, so it is not fully trusted. I hope you think it's a little useful.

Original address: http://www.rrpowered.com/2014/04/prevent-uploads-of-adult-or-nude-pictures-using-php/

How PHP prevents users from uploading adult photos or nude photos

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.