<div>
What you'll develop is an API system which hides/abstracts details of math formula.<br />
<br />
If you use Javascript, anyone can deconstruct the math form the Javascript.
</div>


<div>
Should be very simple to do in PHP. The way you handle data is through a POST request. Simplest way is to create a form in HTML containing all the fields you need. You set the method of this form to <i>post </i>and the action to the name of a PHP script on your server that will do the calculations. When a user clicks on the submit button, the values in the fields are sent to the PHP script and are available in the POST array.<br />
<br />
Quick example:<br />
<br />
//HTML<br />

<pre><code class="code-1 nolinks" id="code-20-42750817-1"><span>&lt;form method=&quot;post&quot; action=&quot;myscript.php&quot;&gt;</span>
<span>    &lt;input type=&quot;text&quot; name=&quot;someValue1&quot;&gt;</span>
<span>    &lt;input type=&quot;text&quot; name=&quot;someValue2&quot;&gt;</span>
<span>    &lt;input type=&quot;submit&quot; value=&quot;Go&quot;&gt;</span>
<span>&lt;/form&gt;</span>
</code></pre>
<br />
//myscript.php<br />

<pre><code class="code-1 nolinks" id="code-20-42750817-2"><span>&lt;?php</span>
<span>$val1 = $_POST['someValue1'];</span>
<span>$val2 = $_POST['someValue2'];</span>
<span>$result = ($val1 * $val2) / 100;</span>
<span>echo $result;</span>
</code></pre>
You can see that the names of the text inputs are used to access the data from the POST array. You'd need to code in some sanitisation, validation and error handling and decide how you want to pass the data back to the user, but hopefully that gives you the general idea
</div>


IT Consultant, Web Designer

Daniele Brunengo

<div>
Hi,<br />
<br />
You can put your JS code inside PHP file.<br />
<br />
&lt;?php<br />
&nbsp;header('Content-Type: application/javascript');<br />
?&gt;<br />
//then JS code here... this will be hidden for end user (from view page source)<br />
<br />
I use this method when I want to hide all language strings that I use for translation.
</div>


<div>
@lenamtl - Pretty sure that won't work. JS needs to be rendered by the browser, so including it in a PHP file with the header will still output JS to the browser - visible for all to see.
</div>


<div>
If the browser can query and download it - then so can anyone else. Anything that ends up in the browser is effectively open source.<br />
<br />
If you want to hide proprietary calculations / data etc the only way to do it is to leave it in server script - feed it inputs and let it spit out the outputs but from the outside it is a black box.
</div>


<div>
@Chris &nbsp;<br />
I cannot say for all case but this is hidden in my case in browser view page code<br />
(but I must say I can still view it using browser admin tool) same as I can see the AJAX code/result too.<br />
<br />
The other solution my friend is using is minify / uglify with some token from session and compressor<br />
The code can be decoded but is it will required some work..<br />
<br />
some tools he use:<br />
<a href="http://www.javascriptobfuscator.com/" rel="ugc">http://www.javascriptobfuscator.com/</a><br />
<a href="https://developers.google.com/closure/compiler/?csw=1" rel="ugc">https://developers.google.com/closure/compiler/?csw=1</a><br />
uglify<br />
<br />
Or I would &nbsp;switch the JS calculation code to PHP &nbsp;<br />
If the code is not a cloud solution but deliver to end user I would use<br />
<a href="http://www.ioncube.com/" rel="ugc">http://www.ioncube.com/</a>
</div>


<div>
Thanks guys for all the suggestions, I will test all of them this weekend or next week. Very interesting points by everyone.
</div>


<div>
<div class="content wysiwyg-content">
Hello, so I have this customer who has come up with a math formula and he doesn't want anybody to see it. But he also wants me to create a web app which uses the formula.<br />
<br />
Now, I have a decent knowledge of Javascript, but I've dabbled very little with php.<br />
<br />
So, if I use js exclusively, the code will always somehow be visible, as obfuscated as it may be.<br />
<br />
I was wondering, is there a way to use php? The app would be very simple: the user inputs some values into a form and the app needs to make some calculations with those values and spit out some results. Since I am near zero with php, I have no idea if this can be done with it, easily or otherwise.<br />
<br />
The app would be mostly identical to this one: <a href="http://www.laconfraternitadellapizza.net/calcolapizza/" rel="ugc">http://www.laconfraternitadellapizza.net/calcolapizza/</a><br />
I made that in js though.<br />
<br />
I hope someone can help me, I don't need the details but I'd just like to know if it's doable and maybe some hints on how to handle the data.<br />
<br />
Thanks.
</div>
</div>


Hello, so I have this customer who has come up with a math formula and he doesn't want anybody to see it. But he also wants me to create a web app which uses the formula.

Now, I have a decent knowledge of Javascript, but I've dabbled very little with php.

So, if I use js exclusively, the code will always somehow be visible, as obfuscated as it may be.

I was wondering, is there a way to use php? The app would be very simple: the user inputs some values into a form and the app needs to make some calculations with those values and spit out some results. Since I am near zero with php, I have no idea if this can be done with it, easily or otherwise.

The app would be mostly identical to this one: http://www.laconfraternitadellapizza.net/calcolapizza/
I made that in js though.

I hope someone can help me, I don't need the details but I'd just like to know if it's doable and maybe some hints on how to handle the data.

Thanks.

Web app with php

Web development includes all aspects of presenting content on intranets and the Internet, including delivery development, protocols, languages and standards, server software, browser clients, databases and multimedia generation.

Web Development

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.