PHP Forum

**MGT-Evelath** · 02:04 PM

First; I'm working on setting up a PhP program that allows the user to choose (using a checkbox), how many sides are on a die. Following this, there would be a "rand" for that, all on the same document. The following is my current progress:

Code:

<html>

<head>

<title>Checkbox Demo</title>

</head>

<body>

<?

print <<<HERE

chk4S: "$4S" <br>
chk6S: "$6S" <br>
<hr>

HERE;

if (!empty($4roll))
{
$4roll = rand(1,4);
print "You rolled a $4roll";
print "<br>";
} //end if

if (!empty($6roll))
{
$6roll = rand(1,6);
print "You rolled a $6roll";
print "<br>";
} //end if



?> 

<h1>Checkbox Demo</h1>

<h3>Demonstrates checkboxes</h3>


<h3>Please input the amount of sides of the die.</h3>
  

<form action ="<? php echo $_SERVER['PHP_SELF']; ?>">

<ul>

<li> <input type = "checkbox"
            name = "4roll"
             >  4-Sided Die
</li>
<li> <input type = "checkbox"
            name = "6roll"
            > 6-Sided Die
</li>


</ul>

<input type = "submit">


</form>

</body>
</html>

However I get the following error:

"Parse error: syntax error, unexpected T_LNUMBER, expecting T_VARIABLE or '$' in /home/rbthrdso/public_html/chapter4/index.php on line 21"Anyone capable of assisting would be greatly appreciated.

And second. I'm also working on getting a program (in PhP), that can allow a user to pick and choose what options (IE: Font color, background color, etc) go into the generated HTML page.

Please and Thank You

**ablaye** · 09-24-2007, 02:02 PM

You should have quotes around your print statement.

print <<<HERE
chk4S: $4S <br>
chk6S: $6S <br>
<hr>
HERE;

**MGT-Evelath** · 09-24-2007, 02:04 PM

Ok; took care of the quotes. The error persists, but thanks for catching something that likely was next on the error list.

**Sandman420** · 09-24-2007, 03:17 PM

I'm just now learning php myself, but I don't think you can start a variable with a number.

**TwistMyArm** · 09-24-2007, 03:22 PM

Sandman420: good pick up. I didn't notice that but you are correct (as per http://php.net/variables , "A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores.").

I would also suggest a couple of other 'improvements'. Your code is assuming that register_globals is on. You shouldn't assume that and so before:
if (!empty($4roll))

you should put:
$4roll = $_REQUEST['4roll'];
$6roll = $_REQUEST['6roll'];

(remembering to rename those variables to whatever the new variable names will be). That may help.

Also be aware that although '<?' obviously works for you here, you should use '<?php' instead as short_tags is being phased out.

**MGT-Evelath** · 09-24-2007, 04:30 PM

Awesome; thanks for the info!

So would a HTML-page generator be very similar; however it would look something like:

Code:

<?php

if (!empty($bgred))
{
background-color: red;
}
?>

Or something different?

PS: The code for the die-rolling program works perfectly, thank you!

**MGT-Evelath** · 05:26 PM

Alright, this is what I've got now:

Code:

<html>

<head>

<title>HTML Generator</title>

</head>

<body>

Select your background color:
<form>
<input type ="button"
       name ="bluebg"
       value ="Blue Background"
       onclick = "document.bgColor='#0000ff'">
<br>
<br>
<input type ="button"
       name ="redbg"
       value ="Red Background"
       onclick = "document.bgColor='ff0000'">
<br>
<br>
<input type ="button"
       name ="greenbg"
       value ="Green Background"
       onclick = "document.bgColor='00FF00'">
<br>
<br>
Select your font color:
<br>
<input type ="button"
       name ="redfont"
       value="Red Font"
       onclick = "document.fontColor='ff0000'">
<br>
<br>
</body>

</html>

However there is an error on the "if" statement. I don't see how I would go about assigning the background color, or font size as variables. Any assistance would be great =]

Quote:

Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in /home/rbthrdso/public_html/chap3-2/index.php on line 27

**feraira** · 09-24-2007, 06:05 PM

You shouldn't start variables with numbers either??