form help

[robcrozier]

Can someone help!!!

im trying to check if a form field is empty, though its always showing as not empty as im echoing a php session variable in the value attribute if the variable is present. Heres the form field:

[code]
<input name="page_name_<? echo $i; ?>" type="text" class="style183" size="40" value="<? echo $page_name_[$i]; ?> ">
[/code]

its also being displayed in a loop.

Basically the problem is that having:

[code] value="<? echo $page_name_[$i]; ?> "
[/code]

at the end always displays a couple of blank spaces in the form, when the variable $page_name if not present, so the return value never shows as empty.

Any help appreciated!!!!

[Orio]

I dont think I really understand you... You want to run the loop only if $page_num is not empty?
That's how to do it-

[code]<?php
if(isset($page_name) && !empty($page_name))
{
  //run loop
}
?>[/code]

Orio.

[robcrozier]

no mate the loops fine,

what i want to do is either echo the valie of $page_name in the textfield or echo nothing at all, depending on whether $page_name has a value. The problem occurs when $page_name does not have a value set. The echo statement in the value attribute of the textfield then prints a few zero's, which stops the returning value of the text field showing as empty. 

Hope this makes it a bit clearer, its hard to describe.

[Orio]

Oh :)

[code]<?php
//this code is inside the loop

if(!isset($page_name_[$i]) || empty($page_name_[$i]))
  $page_name_[$i]="";

echo '<input name="page_name_'.$i.'" type="text" class="style183" size="40" value="'.$page_name_[$i].'">';

?>[/code]

Orio.

[robcrozier]

spot on, cheers!