The Big Programming Thread - Page 500

On July 14 2014 16:14 artynko wrote:

Happens, all the time, and then when you check the commit history it was either the person complaining or you who did the stupid change. Everytime you have a look at a code that was written a year ago it will look like a retarded monkey wrote it.

On July 16 2014 05:46 sob3k wrote:
I' trying to make a MEGA basic contact form that mails an address with the info from a form. I've been using PHP.

... stuff ...

Follow up, how would I adjust things to include the script on the form page you it doesn't take you away from the form?

On July 16 2014 11:37 WolfintheSheep wrote:
Any specific reasons why you're pushing it to the server and not just using Javascript?

Not being facetious with the question. There are a lot of good reasons for having only a form on the client side, and the actual email sending being server side (obscuring email addresses being a major one).

On July 16 2014 16:18 CatNzHat wrote:

You can't send mail through javascript, it doesn't allow you to make an outgoing connection to a random ip and port using SMTP protocol. This is why the server is required.

On July 17 2014 14:35 KlaCkoN wrote:
Am I OK asking for help in this thread?
I am having a labview (real programmers, feel free to laugh) problem at work. I am using an Ni-6229 data acquisition card to generate output and read in the resulting response from some machine.

I need 4 things to happen, 3 of which work fine so far.
1, Generate an analogue output task with very high sampling rate.
2. A digital pulse train that matches the analogue output (this opens a "gate" in the circuit, letting nonzero output through.
3. Read in an analogue response with very precise timing relative to the output.
These three things all work fine.

4. I need a second output task (digital or analogue doesn't matter) that runs before the first output. The problem is that this task needs to run for a long time (~20 seconds, but timing is not very important) so I want the sampling rate to be much lower than for the first output task. However the card won't let me setup two output tasks with different sampling rates. Or I should say, I cant get the card to do it.
So far I have been using the first task to do this part however the long duration of this step limits the sampling rate available to me in the important output task - The computer just dies if I try to generate 20 seconds of samples at 20MHz...
I would very much like to be able to generate the samples for the two outputs at different rates using only the one DAQ card. Any tips would be greatly appreciated.

On July 18 2014 02:11 darkness wrote:
Just wondering, how many of you still play StarCraft and enjoy it? If you don't play it, then which game have you picked nowadays?

On July 18 2014 02:11 darkness wrote:
Just wondering, how many of you still play StarCraft and enjoy it? If you don't play it, then which game have you picked nowadays?

On July 18 2014 00:06 aksfjh wrote:

Some clarifying questions: Why does it (4) have to be a lower sampling rate? Do you have to store all the output values? Why do you need to send ~20 seconds of output, and is there any way to just sleep during that period or loop a smaller output for ~20 seconds?

On July 18 2014 04:04 KlaCkoN wrote:

Thank you for taking an interest! I want (4) to have a lower sampling rate than (1) because as it stands (4) is limiting the sampling rate available to me in (1) because (4) runs for such a long time.
In order to make things more concrete: at the moment I am generating the output samples at 0.1MHz. This task (split over several channels on the card) takes care of both (1) and (4). However I need better resolution than that in (1). But if I simply increase the output task sampling rate to say 10MHz it will be forced to generate ~200E6 samples which causes either the card or the computer to be sad, in any case everything shuts down.
What I would want to do is generate (4) at a much lower sampling rate, say 100Hz, which would let me sample (1) as fast as the card can handle - But it doesn't seem to be possible to have two different output tasks running separate sampling rates open at the same time.
I don't need to store the output values, the computer generates the samples and then I write them to the hardware card before I tell everything to go. (This is necessary for timing purposes)
As for why (4) is necessary: It's a constant 3.7 volt signal that preps part of the machine for the real measurement. (It's pneumatically suspending the sample in a prep region)
I really like the loop idea but I can't make it happen for the same reason as I can't make two tasks with separate rates. In order to do it the channel that runs (4) would need to be separate from (1) and I can't seem to make two independent output tasks.

--- Actually hmm, upon more consideration I think I could make the loop thing work. It would just be hilariously ugly.
I could prepare my output task where (4) is the first part but only say 0.5 seconds long instead of 20 seconds. And (1) is the second part. (~100us). And then I just start and stop the task over and over again until the first part has run for a total of 20 sec xd. (Always stopping before it gets to (1). Then on the final iteration it just gets to finish.
But yes, hilariously ugly is an understatement xd.

On July 18 2014 04:13 RoyGBiv_13 wrote:


You can upsample (4) to the same rate as (1), then down sample it later. It would be the "LabView way": http://zone.ni.com/reference/en-XX/help/371361H-01/lvanls/upsample/

On July 16 2014 05:46 sob3k wrote:
I' trying to make a MEGA basic contact form that mails an address with the info from a form. I've been using PHP.

Here is the form. Is this ok? Anything I need or don't need here?

<form action="jmailscript.php" method="post">
	Name:<br /> <input type="text" placeholder="Name" name="name"><br>
	Email:<br /> <input type="text" placeholder="Email" name="email"><br>
	Phone:<br /> <input type="text" placeholder="Phone" name="phone"><br>
	Property Address:<br /> <input type="text" placeholder="Property Address" name="address"><br>
	Property City:<br /> <input type="text" placeholder="Property City" name="city"><br>
	Property State:<br /> <input type="text" placeholder="Property State" name="state"><br>
	Property Zip:<br /> <input type="text" placeholder="Property Zip" name="zip"><br><br>
	
        <button type="submit" name="submit" value="Submit" class="button" data-type="text" id="submit-btn">Submit</button>
</form>

How would I make a super unsafe simple PHP script to mail an address this info when submit is pressed? I've tried several copy pastes with various levels of complexity and I can't get it to work. I understand very basic PHP syntax and the functions used but I'm clearly not understanding the scripts fully. Also I just learned that apparently you just cannot test mail() on a local server such as Xampp (this could explain some of my failures)? If I just upload it to my domain will that work?

I just want someone to ask a few pointed questions about what certain things are doing.

EDIT: OMFG I did it. very simple when I figured it out

this is my script:

<?php
  $name = $_POST['name'];
  $email = $_POST['email'];
  $phone = $_POST['phone'];
  $address = $_POST['address'];
  $city = $_POST['city'];
  $state = $_POST['state'];
  $zip = $_POST['zip'];
  $from = 'From: My Site'; 
  $to = 'myemail@gmail.com'; 
  $subject = 'Property Information';

  $body = "From: $name\n E-Mail: $email\n Phone: $phone\n Address: $address\n City: $city\n State: $state\n ZIP: $zip";

  if ($_POST['submit']) {
   mail($to, $subject, $body, $from);
    echo "Submission Accepted!";
  }

?>

Follow up, how would I adjust things to include the script on the form page you it doesn't take you away from the form?

On July 19 2014 23:39 Manit0u wrote:


Why are you doing this in pure PHP? If you want pretty bare-bones PHP then go with PHP MVC microframework. Select the advanced version which will give you access to awesome Twig templating engine and Sass for easier styling. And do your forms this way, much easier and you can simply put your script in the controller: http://symfony.com/doc/current/book/forms.html

On July 20 2014 00:45 berated- wrote:


Generally we need to walk before we run. I'm thinking someone that just figured out a mailto might be a tad overwhelmed with phpmvc and sass.

On July 18 2014 02:11 darkness wrote:
Just wondering, how many of you still play StarCraft and enjoy it? If you don't play it, then which game have you picked nowadays?

On July 20 2014 04:48 Manit0u wrote:


HTML and CSS you can grasp on a basic level in an hour. PHP MVC you can get the gist of in about 30 minutes (the entire "tutorial" for it consists of just 5 images and explains pretty much everything you should know). It's much better to get into MVC environment early on, as well as more advanced CSS wrappers (like sass or less) and templating engines. It not only prepares you for more advanced stuff (like jumping to a full-stack framework, regardless of programming language) but also makes it way more enjoyable in the beginning since it turns some of the boring stuff that requires a lot of simple code into more managable and easier to write/read/understand parts.

With PHP I think that you don't get much out of learning pure-PHP. I'm now working as a PHP programmer and I can tell you that practically no one ever uses pure PHP or even PHP code in the views. That's why I suggested php-mvc to him, it's easy to get into since there isn't much of the overhead and it'll let you learn the basic principles behind pretty much every single web project and framework. Sure, I could suggest something like Laravel, where you can have a full app running in 15 minutes and 3 lines of code, but that would be detrimental for someone just learning the ropes. The sooner you start learning the proper way of doing things the better and if you can actually use tools that provide an additional layer of abstraction it's even better because it lets you think more on "what I want" rather than "how do I need to do it". Expressiveness is very important.