testing the condition of a pair of fields

[Ian Davies]

Hi

Can anyone tell me why the following code will NOT work
The error message should be displayed when there is something in both fields

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POST['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";

curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILES['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a file.";
}

to display a message when there is nothing in both fields

help gratefuly requested
Ian

[Janwillem Borleffs]

Ian Davies wrote:

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POST['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the
same time.";

This way, the condition only applies when both sub-conditions are true (both
fields are non-empty); replace the && between the sub-conditions with ||

if ((isset($v) && $v !=='') || (isset($v2) && $v2 !=='')) {
...
}
curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILES['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a
file."; }

That's because with the ||, only one test has to pass. Also note that you
are not compatring values (==) but assigning them (=).
JW

[Ian Davies]

>This way, the condition only applies when both sub-conditions are true
(both

fields are non-empty);
Thats exactly what I want only one field should have something in it and
both fields should NOT be empty at the same time. But it doesnt work.

Ian
"Janwillem Borleffs" <jw@jwscripts.c om> wrote in message
news:44******** *************** @news.euronet.n l... Ian Davies wrote:

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POST['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the
same time.";

This way, the condition only applies when both sub-conditions are true

(both fields are non-empty); replace the && between the sub-conditions with ||

if ((isset($v) && $v !=='') || (isset($v2) && $v2 !=='')) {
...
}

curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILES['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a
file."; }

That's because with the ||, only one test has to pass. Also note that you
are not compatring values (==) but assigning them (=).
JW

[kay]

Ian Davies напи�ав:

This way, the condition only applies when both sub-conditions are true

(both

fields are non-empty);

Thats exactly what I want only one field should have something in it and
both fields should NOT be empty at the same time. But it doesnt work.

Ian
"Janwillem Borleffs" <jw@jwscripts.c om> wrote in message
news:44******** *************** @news.euronet.n l...

Ian Davies wrote:

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POST['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the
same time.";

This way, the condition only applies when both sub-conditions are true

(both

fields are non-empty); replace the && between the sub-conditions with ||

if ((isset($v) && $v !=='') || (isset($v2) && $v2 !=='')) {
...
}

curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILES['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a
file."; }

That's because with the ||, only one test has to pass. Also note that you
are not compatring values (==) but assigning them (=).
JW

The boolean result of initialization the variables in 'if' condition
is always 'true' so the code like

if ( (...||...||...| |$a=''||...) && (...||...||...| |$b=''||...)&&
..... (...||...||...| |$z=''||...))

will be always true as Janwillem Borleffs mentioned.
Maybe you meant $Post['Link']=='' in your code?

[Martin Jay]

In message <vQ************ ******@newsfe3-win.ntli.net>, Ian Davies
<ia********@vir gin.net> writes

Can anyone tell me why the following code will NOT work
The error message should be displayed when there is something in both fields

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POS T['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";
Here you're using $_POST['uploadedfile']. I'd guess it should probably
be $_FILES['uploadedfile']['name'], which is the name of the file that
was uploaded.
curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILE S['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a file.";
}

Here you're using $_FILES['uploadedfile'], which would be an array.

And $_POST['Link'] ='' will always be true because it is giving
$_POST['Link'] the value ''.
--
Martin Jay
Phone/SMS: [phone]
Fax: [phone]

[Ian Davies]

Yes there was syntax errors in my previous post but i tried every
combination even with the correct syntax. The problem was the

$_FILES['uploadedfile']

which wasnt being recognised as a field
I found eventually that it should be

$_FILES['uploadedfile'] [Name]

now everything is fine
Thanks for the help

Ian

should be
if($_POST['Link']!=='' && $_FILES['uploadedfile']!=='') {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";
}

error does shows when 'uploadedfile' is empty

if($_POST['Link']<>'' && $_FILES['uploadedfile']<>'') {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";
}

error does shows when 'uploadedfile' is empty

if(!isset($_POS T['Link']) && !isset($_FILES['uploadedfile'])) {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";
}

error does not show even when both fields have something in them
error does not show

"Martin Jay" <ma****@spam-free.org.uk> wrote in message
news:AP******** ******@spam-free.org.uk...

In message <vQ************ ******@newsfe3-win.ntli.net>, Ian Davies
<ia********@vir gin.net> writes

Can anyone tell me why the following code will NOT work
The error message should be displayed when there is something in both fields
if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POS T['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the sametime.";

Here you're using $_POST['uploadedfile']. I'd guess it should probably
be $_FILES['uploadedfile']['name'], which is the name of the file that
was uploaded.

curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' &&
empty($_FILE S['uploadedfile']) || $_FILES['uploadedfile'] ='') {
$error_msg.="<b r>You didn't select whether to upload a link or a file.";
}

Here you're using $_FILES['uploadedfile'], which would be an array.

And $_POST['Link'] ='' will always be true because it is giving
$_POST['Link'] the value ''.
--
Martin Jay
Phone/SMS: [phone]
Fax: [phone]

[Guy]

Ian Davies a écrit :

Hi

Can anyone tell me why the following code will NOT work
The error message should be displayed when there is something in both fields

if ((isset($_POST['Link']) && $_POST['Link'] !=='') &&
(isset($_POST['uploadedfile']) && $_POST['uploadedfile'] !=='')) {
$error_msg.="<b r>You can't select to upload a link and a file at the same
time.";

curiously the following works

if(empty($_POST['Link']) || $_POST['Link'] ='' && Hi
= is not operator; try ==
empty($_FILES['uploadedfile']) || $_FILES['uploadedfile'] ='') {
idem
G
$error_msg.="<b r>You didn't select whether to upload a link or a file.";
}

to display a message when there is nothing in both fields

help gratefuly requested
Ian