PHP: Making sure a variable in't empty?

Rob Pengelly posted this at 00:19 — 18th May 2000.

Joined: Jul 1999

I need to make sure that a few inputed variables are not blank. By empty, I mean containing just spaces. so "", " ", " " would be considered empty.

I have tried
$var = " ";
if(!empty($var)
if(isset($var)
etc, but php still thinks that the variable has "stuff" in it, even if it only consists of white spaces.

Any ideas?
Thanks

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[This message has been edited by robp (edited 17 May 2000).]

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anti posted this at 08:36 — 18th May 2000.

They have: 453 posts

Joined: Jan 1999

ouch ...

!$xxx
is TRUE if $xxx = "0";

I would go with something like

if( ereg( "^[ ]*", $xxx ) ){
// empty
}

You might want to add tabs and newlines to the class, but that depends on from where the data came.