Error message on script running on local host

webken

Hi,

I excute this simple script on my localhost:

<h3>Please fill in the blanks below, and I'll tell
you a story</h3>
<form method = "post"
action = "simple.php">

<table border = 1>
<tr>
<th>Color:</th>
<th>
<input type = "text"
name = "color"
value = "">
</th>
</tr>
<tr>
<td colspan = 2>
<center>
<input type = "submit"
value = "submit">
</center>
</td>
</tr>

</table>

I input value yellow and click the submit button.

Below is the simple.php code:

<table border = 1>
<tr>
<th>Variable</th>
<th>Value</th>
</tr>

<tr>
<th>color</th>
<td><? print $color; ?></td>
</tr>

</table>

The result I get is in error:

Notice: Undefined variable: color in C:\Program Files\Apache Group\Apache2\htdocs\phptut\storySimple.php on line 9

"line 9" is <td><? print $color; ?></td>

I tried and tried but still can't figure out what went wrong.

Please advice.

Regards
Webken

weekender

you used to be able to access posted (form) variables like this, but not any more - as leaving register_globals on is considered a security risk

so all posted variables go into the $_POST superglobal array, which is associative - ie you can access it using the field names as indexes. so what you want is...

<td><? print $_POST['color']; ?></td>

webken

Thank for the help. It work now.

I have another enquiry on the same html file but calling to a different script (simple1.php).

print <<<HERE
<h3>
The color is $color.
</h3>
HERE;

The error I'm getting is:

Undefined variable: color in C:\Program Files\Apache Group\Apache2\htdocs\phptut\simple1.php on line 5

Please advice.

Regards

weekender

the stuff in print has to be in quote marks

<? 

print "The color is $color.</h3>"; 

?>

all this is kind of obvious if you read the manual at www.php.net/manual

webken

Thanks for the help.

I'm learning PHP from a book I purchase and the code supplied as tutorial are not working. That is why I seek advice from this fourm. And thanks for the info on reading the manual provided by php.net. Will go and read it up.

Regards

webken

Hi,

I try out

print "The color is $color.";

But it still displaying the same error.

Notice: Undefined variable: color in C:\Program Files\Apache Group\Apache2\htdocs\phptut\story.php on line 5

Actually, the code written on the book is below:

print <<<HERE
<h3>
Little Boy $color, come blow your $instrument!<br>
The $anim1's in the $place, the $anim2's in the $vegetable.<br>
Where's the boy that looks after the $anim3?<br>
He's under the $structure, $action.
</h3>
HERE;
?>

Is the above codeing faulty?

Regards

weekender

well $color, $instrument and all the other $ words are variables - and these must have a value if you want to display them

if you're getting the vars from a form, use $_POST, for example.

to just set them in the script, use $color = "blue";

adam