validation

if(isset($_POST["option"]) && $_POST["option"]=="submit"){
	$errors = array();
 
	$required = array(
		"name" => "Please enter a name",
		"price" => "Please enter a price"
	);
 
	foreach($required as $key => $value){
		if(trim($_POST[$key]=="")){
			$errors[] = $value;
		}
	}
 
	if(sizeof($errors)<>0){ ?>
		<h2>Oops you have missed something...</h2>
		<ul class="error">
		<? foreach($errors as $error){ ?>
			<li><?=$error;?></li>
		<? }?>
		</ul>
	<? }
	else {
		//proceed
	}
 
}