//Set form variables$article = $_REQUEST['article'];$category = $_REQUEST['category'];$title = $_REQUEST['title'];$author = $_REQUEST['author'];$website = $_REQUEST['website'];//validate variablesIF $article == "Copy and paste your article here" || "";{echo "You must type something into the article box";exit;}else{echo "Article content OK";}IF $category == "Category";{echo "You must select a category";exit;}else{echo "Category OK";}IF $title == "Your article's title" || "";{echo "You must enter a title for your article";exit;}else{echo "Article title OK";}IF $author == "Your name here"; || "";{echo "You must enter your name";exit;}else{echo "Name OK";}IF $website == "Your website here" || "";{echo "You must enter your website address";exit;}else{echo "Website OK";}?>