Description:
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I am trying to pass data from a text field thru $_POST to a varialbe
while the text field is blank because it hasn't been filled in I get a undefined index warning from the names assigned to the text fields.
I have tryed assigning a starting value to the text fields, but I still get the undefined index. I have tryed the ISSET() and EMPTY()
on the variable thru $_POST but it doesn't allow the fields to be populated when its time to populate.

Reproduce code:
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$var = $_POST['var']; $edit = isset($_POST['edit']); $editto = isset($_POST['editto']);
print "<form action = 'form.php' method = 'post'>
<input type = 'submit' value = 'Edit' name= 'edit'></form>";
if ($edit) {
print "<form action = 'form.php' method = 'post'>
SSN: <input type = 'text' name = 'var' size = '10'>
<input type = 'submit' value = 'submit' name = 'editto'>";
}
if ($editto) {
print "$var"
}

Actual result:
--------------
before information is input:

Notice: undefined index: var in C:\wamp\www\folder\form.php on line ##

after text is entered into text field the notice goes away.

I have tryed ISSET and EMPTY on the varialbe that is suppose to recieve the text but it then doesn't transfer any text.