[Resolved] [Resolved] if input field is empty, use another?

[vent2]

to fields, a pop up($image_ref_b) and an input field($image_ref)

if($image_ref !==""){
$image_ref ="$image_ref";
}else{
$image_ref = "$image_ref_b";
}

image ref then gets put into the database.
what am i doing wrong?

[vent2]

im stupid;

if($image_ref_a ==""){
	$image_ref = $image_ref_b;
}else{
	$image_ref = $image_ref_a; 
}

got it.