accessing submited form values, error. help!!

[jaboc]

I keep getting this error  PHP Notice: Undefined index: search in simpleformdata2.php on line 12

line 12 is the line where the search variable is declared. I am still learning php and this is code from a text book. coppied line for line.

<?php

$search = $_GET["search"];

$self=$_SERVER['PHP_SELF'];

if ($search != NULL )

{

('

<form action="'.$_SERVER["PHP_SELF"].'" method="GET">

<label>Search: <input type="text" name="search" />

</label>

<input type="submit" value="Go!" />

</form>

');

}

?>

[kenrbnsn]

What is this chunk of code?

<?php
('
<form action="'.$_SERVER["PHP_SELF"].'" method="GET">
<label>Search: <input type="text" name="search" />
</label>
<input type="submit" value="Go!" />
</form>
');
?>

 

It looks like you're missing an "echo"

<?php
echo '<form action="'.$_SERVER["PHP_SELF"].'" method="GET">
<label>Search: <input type="text" name="search" />
</label>
<input type="submit" value="Go!" />
</form>';
?>

 

Ken

[jaboc]

hmm, text book doesn't have the echo...I will try it.

[kenrbnsn]

Textbooks aren't always accurate, unfortunately.

 

Ken

[jaboc]

hmm I don't think this is gonna work.

the moddified code you gave me didnt include the if statement which is used to check if there is data in the text field.

I tried this

<?php

echo '$search = $_GET["search"]';

$self=$_SERVER['PHP_SELF'];

if ($search != NULL )

{

('

<form action="'.$_SERVER["PHP_SELF"].'" method="GET">

<label>Search: <input type="text" name="search" />

</label>

<input type="submit" value="Go!" />

</form>

');

}

?>

got this error

$search = $_GET["search"] PHP Notice: Undefined variable: search in simpleformdata2.php on line 14

when I tried this

<?php

echo '$search = $_GET["search"];

$self=$_SERVER['PHP_SELF'];

if ($search != NULL )

{

('

<form action="'.$_SERVER["PHP_SELF"].'" method="GET">

<label>Search: <input type="text" name="search" />

</label>

<input type="submit" value="Go!" />

</form>

');

}'

?>

this error came up 

PHP Parse error: parse error, unexpected T_STRING, expecting ',' or ';' in simpleformdata2.php on line 13

[boo_lolly]

you should be very familiar with these tutorials before posting in any php forum: tizag and w3schools.

[jaboc]

I am confused because I read the guidelines for posting and it said that this is a forum for people learning php yet I ask for help and I am told that I should go read tutorials before I post. also in the guidlines it says people who are new to php should post in the php newbie forum which I couldnt find.

[kenrbnsn]

The php newbie forum hasn't existed on this site in over a year. The guidelines need to be changed.

 

I just posted one piece of your code that I felt was in error. Now I will post your entire code with the fixes that should make it work (maybe)

 

<?php
<?php
$search = $_GET["search"];  // you don't want an "echo" here since this line needs to be executed
$self=$_SERVER['PHP_SELF'];
if ($search != NULL )
{
     echo '<form action="'.$_SERVER["PHP_SELF"].'" method="GET">
              <label>Search: <input type="text" name="search" />
              </label>
              <input type="submit" value="Go!" />
              </form>';
}
?>

 

Please remember to surround all of your code with

tags.

 

Ken

[jaboc]

*sigh*

got this error

PHP Notice: Undefined index: search in simpleformdata3.php on line 12

 

$search = $_GET["search"];  // this is line 12

 

[kenrbnsn]

That is just a "Notice", not an error. Looking at the code, the logic is incorrect. Try this:

<?php
if (!isset($_GET['search']))
{
     echo '<form action="'.$_SERVER["PHP_SELF"].'" method="GET">
              <label>Search: <input type="text" name="search" />
              </label>
              <input type="submit" value="Go!" />
              </form>';
}
else
     echo 'You want to search for <span style="color:red;font-weight:bold">' . stripslashes($_GET['search']) . '</span>';
?>

 

I put the "else" clause in so you will see what you entered into the form.

 

Ken

[jaboc]

cool, thanks...This text book I am using might be useless then huh?

[kenrbnsn]

Yes. What is the name of the book and when was it published?  If there is a web site associated with the book, check it out to see if any errata have been posted.

 

Ken

[jaboc]

learning PHP & MySQL

printed 2006 0'Reilly Media

 

wow user reviews on the site say there are many errors in this book! good thing I didnt buy it! I borrowed it from a friend.

[boo_lolly]

I am confused because I read the guidelines for posting and it said that this is a forum for people learning php yet I ask for help and I am told that I should go read tutorials before I post. also in the guidlines it says people who are new to php should post in the php newbie forum which I couldnt find.

 

allow me to clarify. we are not here to re-invent the wheel. there are plenty of tutorials on the internet explaining just about everything you could want to know. 'just about' are the operative words in that sentence. after doing research online and the manual, you should post your questions here. you were looking for a how-to 'if/else' condition... this is a very elementary procedure that can be found in a thousand other places. please, don't waste the space on simple posts. come here to acquire conceptual and procedural understanding of things you do not yet know, but only after you have attempted on your own.

 

unfortunately, that book of yours isn't a very good reference. replace that text book with those two tutorial sites i posted, and you'll be good to go. welcome to the forums!

[jaboc]

cool, thanks for the clarification.