[Qombat]

After going through the front page and turning every thread to 'read' state, a number of the threads are menial things that are simple fixes, or just general questions. As a result, here's the "Web Development Questions That Don't Need Their Own Thread" thread.

What''s the point of this thread anyways?
It's for people who are terrified of making their own threads regarding simple or 'dumb' questions, or already do make them. It's time to stop making them, and simply ask them in here.

Don't turn this thread into a shitstorm about sanitisation, OO vs Procedural, C# vs PHP, etc. We don't care unless it is 100% relevant to the question.

I don't actually have a question to kick this off with, unfortunately. :saddowns:

[:awesome:]

This thread could be helpful, though most users use the What Are You Working On thread.

[not_Morph53]

Is it a coincidence that I like both Perl and S&M?

[Richy19]

Is his a kind of What Do You Need Help With thread?

[Qombat]

Richy19 posted:

Is his a kind of What Do You Need Help With thread?

Kinda. I took the idea from the Linux forum actually.

Edited:

:awesome: posted:

though most users use the What Are You Working On thread.

Hence this thread.

[PieClock]

I already posted this in the WAYWO thread but my aswell post it here too:

Is there any way to enable good anti aliasing on header tags?

[Torquil]

PieClock posted:

I already posted this in the WAYWO thread but my aswell post it here too:

Is there any way to enable good anti aliasing on header tags?

Cufon.

[Siemens]

not_Morph53 posted:

Is it a coincidence that I like both Perl and S&M?

yes.

perl is a beautiful language

[Haxxer]

Gah, trying to make this this that's supposed to take the sum out of two inputed numbers.

$tal1 = $_POST["val1"];
$tal2 = $_POST["val2"];
$a = 1;

for( $a = $tal1; $a <= $tal2; $a++){
}

I want it to take every number between $tal1 and $tal2 and add them together, ie. 3 to 7 becomes 25.

I'm pretty much stuck.

[Siemens]

Haxxer posted:

Gah, trying to make this this that's supposed to take the sum out of two inputed numbers.

$tal1 = $_POST["val1"];
$tal2 = $_POST["val2"];
$a = 1;

for( $a = $tal1; $a <= $tal2; $a++){
}

I want it to take every number between $tal1 and $tal2 and add them together, ie. 3 to 7 becomes 25.

I'm pretty much stuck.

Really not a hard problem:

$tal1 = intval($_POST['val1']);
$tal2 = intval($_POST['val2']);
$total = 0;

for($i = $tal1; $i <= $tal2; $i++)
{
    $total += $i;
}

[Haxxer]

Thank you, but what does intval do?

[Siemens]

Haxxer posted:

Thank you, but what does intval do?

http://php.net/manual/en/function.intval.php

[Haxxer]

Siemens posted:

http://php.net/manual/en/function.intval.php

I see. I'm quite new to all this, I need to train my math mind.

[Siemens]

Haxxer posted:

I see. I'm quite new to all this, I need to train my math mind.

:what:

[The Riddler]

Haxxer posted:

I see. I'm quite new to all this, I need to train my math mind.

Query. How good are you in Algebra?
Just wondering. As a programmer, I find beginners intriguing.

[Haxxer]

The Riddler posted:

Query. How good are you in Algebra?

Relatively good. Math has never been my strong side.

Also, I meant how to think when programming, I started like a week ago or something.

[The Riddler]

Haxxer posted:

Relatively good. Math has never been my strong side.

Also, I meant how to think when programming, I started like a week ago or something.

That's why I asked, man. Algebra is a pertinent factor when it comes to a programmer's thinking process. Not for the equations, but more for logistic purposes. It helps a lot with defining algorithms. At least, that's what a programming teacher of mine taught me.
Am I in the right port, now?

[Haxxer]

The Riddler posted:

That's why I asked, man. Algebra is a pertinent factor when it comes to a programmer's thinking process. Not for the equations, but more for logistic purposes. It helps a lot with defining algorithms. At least, that's what a programming teacher of mine taught me. Am I in the right port now?

Indeed, I just didn't know of "+=" as I didn't put it in my references for some reason

[Siemens]

Haxxer posted:

Indeed, I just didn't know of "+=" as I didn't put it in my references for some reason

$a += $b;
// is the same as:
$a = $a + $b;

[Haxxer]

Ah, thanks

[Richy19]

Does anyone know if: when you buy something through paypal express does paypal send both the buyer and the seller a receipt email with items sold, total price & buyers address?

[Haxxer]

I'm sorry for my stupidity and incompetence, but I have a new problem.

This script is for writing QCs when compiling models, and the first document is supposed to allow the user to choose the amount of frames by simple input boxes which is sent to this next one.

This one supposed to list the number of frames and allow the user to give each frame a name, which will then be sent to the next page to be printed:

<?php
	
	$frames = $_POST['frames'];
	$framenum = 0;
	
	if( is_numeric($frames)){
	
		echo "<FORM ACTION=\"qc3.php\" METHOD=\"post\">";
		
		for($frames = 1; $frames <= $_POST['frames']; $frames++){
			
			echo "Frame " . $frames . ": <input type=\"text\" name=\"framename" . $framenum . "\" size=\"20\">";
			$framenum++;
			echo "<br>";
			
		}
		
	}
	else{
	
		echo "That is not a number";
	
	}
				
	echo "<INPUT TYPE=\"submit\" VALUE=\"Next\">";
	echo "</FORM>";
		
?>

How am I supposed to send all the names to the next phase?

[Alcapwne]

On the login page of my site, how would I make it so that the validation etc. script is run on the login page and any errors appear on the login page as well?

I think I have to put the validation script itself on the login page, but I don't know where exactly to put it, or what action to assign to my 'login' button.

My homepage is currently index.html, will this have to change to .php?

Thanks

[PieClock]

I'm sure someone can tell you how to do it better with their fancy languages and stuff, but what I do is send the action of the submit button to the same page and put the validation code on the same page. It doesn't matter where it is at. One thing you might want to do is to not make it run unless it has to.

(Put in a check to see if a variable from the form exists or not.)

<?php

if($_POST['blah']) {

echo('exists');

} else {

echo('doesn't exist yet');

}
?>

[Alcapwne]

PieClock posted:

I'm sure someone can tell you how to do it better with their fancy languages and stuff, but what I do is send the action of the submit button to the same page and put the validation code on the same page. It doesn't matter where it is at. One thing you might want to do is to not make it run unless it has to.

(Put in a check to see if a variable from the form exists or not.)

<?php

if($_POST['blah']) {

echo('exists');

} else {

echo('doesn't exist yet');

}
?>

So I can send the action to a .html page? How will it know what to do?

[PieClock]

Alcapwne posted:

So I can send the action to a .html page? How will it know what to do?

I believe it has to be .php

HTML works in php files.

[nivek]

PieClock posted:

<?php

if($_POST['blah']) {

echo('exists');

} else {

echo('doesn't exist yet');

}
?>

The apostrophe in doesn't breaks that...

[Alcapwne]

PieClock posted:

I believe it has to be .php

HTML works in php files.

Great, thanks

[PieClock]

nivek posted:

The apostrophe in doesn't breaks that...

I'm sure he'll be changing that anyway. I guess I should get out of the habit of using ' ' first. :frown:

[not_Morph53]

nivek posted:

The apostrophe in doesn't breaks that...

This is my worst habit, I forget to escape shit all the time.

[Alcapwne]

PieClock posted:

I'm sure someone can tell you how to do it better with their fancy languages and stuff, but what I do is send the action of the submit button to the same page and put the validation code on the same page. It doesn't matter where it is at. One thing you might want to do is to not make it run unless it has to.

I've got that bit sorted, now I just need to get the die() error messages to appear on the index.php page rather than a white blank page. How do I do this?

[PieClock]

You put the die() functions into index.php instead of the white page?

You should be able to take the code from the "white page" and put it into index.php inside the <?php ?> tag fine and it'll work. Place it where you want the errors to show up.

Edited:

I'm trying to tackle something here. I'm using mysqli prepared statements. What I want to do is pass HTML and CSS into them. HTML works fine. It passes through, however if I try something like

<p style="text-align:center;">

it doesn't work. The paragraph will come into effect but the text align wont.

[deadeye536]

Haxxer posted:

I'm sorry for my stupidity and incompetence, but I have a new problem.

This script is for writing QCs when compiling models, and the first document is supposed to allow the user to choose the amount of frames by simple input boxes which is sent to this next one.

This one supposed to list the number of frames and allow the user to give each frame a name, which will then be sent to the next page to be printed:

-phpsnip-

How am I supposed to send all the names to the next phase?

We were all beginners at one point, don't worry about it

From what I can tell, you are trying to find a way for your script to know all of the different name fields that are available, correct? Something you may try is a handy trick to POST the data as an array, and cycle through that loop using foreach. You can achieve this by using a name of "whatever[]".

For example, say you have the form;

<form method="POST" action="action.php">
	<input type="text" name="frame[]" size="20" value="Facepunch" />
	<input type="text" name="frame[]" size="20" value="Blah" />
	<input type="text" name="frame[]" size="20" value="5" />
</form>

This will pass the data in a way where PHP will recognize it as an array. Basically, it's the same as saying,

$_POST['frame'] = array('Facepunch', 'Blah', '5');

Good luck, hope this helps.

Edited:

PieClock posted:

I'm trying to tackle something here. I'm using mysqli prepared statements. What I want to do is pass HTML and CSS into them. HTML works fine. It passes through, however if I try something like

<p style="text-align:center;">

it doesn't work. The paragraph will come into effect but the text align wont.

How does the output of that look in the browser? Are there any stray backslashes? If there are some, you might need to run a stripslashes to get rid of them.

Edited:

Alcapwne posted:

I've got that bit sorted, now I just need to get the die() error messages to appear on the index.php page rather than a white blank page. How do I do this?

So you're trying to do something along the lines of error handling that won't break the output of your page? You could try a few things. The first is something that isn't exactly error handling, but it will display your page around the message. Basically, you can write your own function such as;

stylishDie('Oh no! Something happened, please try again!');
exit;

And, simply have the function wrap your page around that.

function stylishDie($msg) {
    echo '<!DOCTYPE html>
        ...
    <div id="message">'.$msg.'</div>
        ...
    </html>';
}

That is probably the simplest way of doing this, but I'm certain there are much better, more flexible ways to get this done.

Edited:

PieClock posted:

I'm sure he'll be changing that anyway. I guess I should get out of the habit of using ' ' first. :frown:

Worst part is that once you start using double quotes, you'll find yourself needlessly escaping single quotes.

[Haxxer]

deadeye536 posted:

We were all beginners at one point, don't worry about it

From what I can tell, you are trying to find a way for your script to know all of the different name fields that are available, correct? Something you may try is a handy trick to POST the data as an array, and cycle through that loop using foreach. You can achieve this by using a name of "whatever[]".

For example, say you have the form;

<form method="POST" action="action.php">
	<input type="text" name="frame[]" size="20" value="Facepunch" />
	<input type="text" name="frame[]" size="20" value="Blah" />
	<input type="text" name="frame[]" size="20" value="5" />
</form>

This will pass the data in a way where PHP will recognize it as an array. Basically, it's the same as saying,

$_POST['frame'] = array('Facepunch', 'Blah', '5');

Good luck, hope this helps.

How would that work when I have up to 35 different names?
I suppose it wouldn't work to set the number of frames in the array?

Edited:

Basically, I have three documents.
qc.php, which sends the number of frames to the next document, qc2.php, which uses a for-loop to print out a text box for each frame. I basically want it to send each of these text boxes' values to the next page (qc3.php) and print it out.

[chrise112]

PHP related question, what does it mean when you see -> or => i.e

<?php
// code
$this -> $something_else
?>

Am I correct to asume it's along the lines of and?

[Pocoyo]

Also, can someone give a quick explanation when to use ' and when to use "?

[Alcapwne]

For some reason, my login cookie isn't being added :( Here is the cookie add code:

 <?php
$_POST['username'] = stripslashes($_POST['username']); 
 	 $hour = time() + 3600; 
 setcookie("user", $_POST['username'], $hour); 
 setcookie("pass", $_POST['password'], $hour);	 
?>

Everything before it works okay, and everything after it, because it redirects to the member's area but then the member's area sends you back to the login screen because there's no login cookie stored.

What do?

Also, does this code check whether a cookie exists correctly?

		if (!$_COOKIE["user"] | !$_COOKIE["pass"])
			{			echo '<meta http-equiv="refresh" content="0;http://clickphilia.leadhoster.com/index.php" />';
						die('No cookie. Redirecting to login page...');

[Siemens]

chrise112 posted:

PHP related question, what does it mean when you see -> or => i.e

<?php
// code
$this -> $something_else
?>

Am I correct to asume it's along the lines of and?

-> is object access, eg:

$myobj = new myClass;
echo $myobj->myMember;

=> is for doing key/value shut, like when defining an associative array:

$myarr = array( one => 1, two => 2 );
echo $myarr['one']; // prints '1'

It can also be used in a foreach loop to get each key and value in an associative array:

foreach($myarr as $k=>$v)
{
    echo $k . ': ' . $v . '\n';
}
/*
one: 1
two: 2
*/

[andersonmat]

Pocoyo posted:

Also, can someone give a quick explanation when to use ' and when to use "?

PHP evaluates anything inside " ". If you use ' ' it will be plain text with no inside evaluation.

(Technically, the first quotes would be a string, and the second a char but PHP lives in its own fantasy world of what's "correct".)

[PieClock]

deadeye536 posted:

How does the output of that look in the browser? Are there any stray backslashes? If there are some, you might need to run a stripslashes to get rid of them.

Hmm. Yes, in the source code there are slashes. I guess that was the problem, thanks.

Yup, works great now.