finding the first empty input box

Question

I have many input fields and I need to ascertain the first empty input field. at the moment I'm checking each one individually and if its not empty move on to the next one. But I was wondering if anyone knew of a more efficient way of doing this:

if(empty($a)){$a=$name;}else
if(empty($b)){$b=$name;}else
if(empty($c)){$c=$name;}else 

............if(empty($z)){$z=$name;}else

{$message="all boxes are filled"};

You can use JQuery. There is a similar thread. Please check http://stackoverflow.com/questions/3502354/textbox-empty-check-using-javascript — Taicho, Jan 21 '13 at 00:58

score 1 · Accepted Answer · answered Jan 21 '13 at 00:59

1

Well, assuming you're using POST or GET on the form you can just loop through each form element as such:

foreach ($_GET as $key => $value) { }

answered Jan 21 '13 at 00:59

SeanWM

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I tried that but I could only make find all empty ones, not just the first empty one – user1559811 Jan 21 '13 at 01:02
2

@user1559811 Use the `break;` keyword when you get a match there, so it will stop looping. – inhan Jan 21 '13 at 01:08

finding the first empty input box

1 Answers1