Refreshing SESSION variable with an HTML form

[ArizonaJohn]

Hello,

 

I have the following HTML form at the top of a page called tsearch18.php.  This page uses the variable "find" as a session variable.  I would like the value of "find" to remain constant unless the user hits the submit button on the form below (or of course types a new value into the form and hits enter). 

 

So, I would like to trigger "unset($_SESSION['find']);" whenever the HTML form is used.  But only then.  How can I do this?

 

I am having a hard time figuring out where to put "unset($_SESSION['find']);"  I tried an if statement and it didn't work.

 

Thanks in advance,

 

John

 

 

<div class="searchbox">
  <form action="tsearch18.php" method="post">
  <label>Enter Topic:
  <input type="text" name="find" size="55"/>
  <input type="hidden" name="searching" value="yes" />
  <input type="submit" name="search" value="Search" />
  </label>
  </form>
  </div>

[paulman888888]

add an if

 

if(isset($_POST['submit'])){unset($_SOMeTHING)}

[waynew]

if(isset($_POST['find'])){
    if(isset($_SESSION['find'])){
        unset($_SESSION['find']);
    }
}

[ArizonaJohn]

Hi Waynewex,

 

That code does what I want... but I only want it to do that if the "Search" button is clicked.

 

And then after the "Search" button is clicked, I want to re-set the session variable and keep it live.

 

So far I can't get it to work.

[waynew]

if(isset($_POST['search'])){
    if(isset($_SESSION['find'])){
        unset($_SESSION['find']);
    }
    $_SESSION['find'] = $_POST['find'];
}

[ArizonaJohn]

Hi Waynewex,

 

Almost there... this is a little weird, but it works if the HTML form is used twice.

 

So when I hit enter, the result is whatever had been entered into the search bar one attempt previously.

 

Any ideas why it is doing that?

 

Thanks

[waynew]

So you're only wanting it to be set once, and no more thereafter?

[ArizonaJohn]

No, I want the user to be able to reset without limit... every time something is entered into the HTML form.

[fullyscintilla]

why do you need it stored in a session variable at all then..?

[ArizonaJohn]

Later on, I use Ajax that refers to another page where I need the value of "find" to remain constant.

[fullyscintilla]

you could always create a secondary session variable to temp hold on to values and then reset that value each time a new value is submitted

[ArizonaJohn]

How would I do that?

[fullyscintilla]

if(isset($_POST['search'])
{
$Find = $_POST['find'];
$_SESSION['find'] = $_POST['find'];
}

 

?

 

Hard to tell without knowing the rest of your code