Perry, Matthew (Fire Marshal's Office) wrote:
I am using PHP 4.3.1 and running Apache Server and MySQL.
The following question is probably only related to PHP.
Here is the problem:
I am passing the following string from one form to another:
"../create.php?dest=Employee/menu_handleemployee.php?action=update&ID=$ID"
Here is the actual code:
When I view the source it comes out as expected:
action="../create.php?dest=Employee/menu_handleemployee.php?action=update&ID
=82"
method="post" enctype="multipart/form-data" name="formEMPLOYEE">
But after it goes to the next page it turns into this:
"../create.php?dest=Employee/menu_handleemployee.php?action=update"
Everything up to and after the '&' disappears!!
that because PHP sees your URL as having two GET vars:
dest=Employee/menu_handleemployee.php?action=update
ID=82
the ampersand is the default name/value pair seperator.
try using urlencode() [and urldecode() when you actually want to
redirect to that 'dest' url] on the redirect string when passing it
along in the URL (or form field)
e.g.
$action =
'../create.php?dest='.urlencode("Employee/menu_handleemployee.php?action=update&ID=$ID");
and if that doesn't work try replacing the '&' char with something else e.g.
$action =
'../create.php?dest='.str_replace('&','$$',"Employee/menu_handleemployee.php?action=update&ID=$ID");
and then before your redirect to that url reverse the replacement e.g.:
header('location: ' .
str_replace('$$','&',"Employee/menu_handleemployee.php?action=update&ID=$ID"));
exit;
BTW: 2 dollar signs may not be the best choice of chars to use.
another way of tackling the issue is by looking at the contents of
$_SERVER (a auto superglobal var, just like $_GET, $_POST etc) - try:
print_r($_SERVER);
you'll be surprised what kinds of useful items are contained in that array.
while you're at it try:
print_r($_GET);
looking at the output of that will probably help you understand where
the 'ID' bit of the redirect url went.
print_r() is your friend USE IT!!! OFTEN!!!
sing this as a reminder "When in doubt print it out"
[ (tm) Wong Coding Industries ;-) ]
The goal of this code is to send the redirect address to the form that
modifies my data.
I want variable "dest" to be used to dynamically redirect the page.
I have tried the following to fix the problem without avail:
1) I tried saving the variable in other ways such as text fields in the form
itself.
2) I tried addslashes() (which works well with similar problems related to
', " etc.).
3) I tried adding \ before &
4) I danced around my computer and threatened to pull the plug.
you forgot to wave the dead chicken around your head!
None of these worked!
What is it about '&' that throws everything off with PHP variables? It
doesn't seem to be a problem with HTML.
its the default request name/value pair seperator.
This is exceedingly difficult to research online because '&' is excluded
from most search engines automatically.
it's called an ampersand. which might help further searching.
-Matthew
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