ownForm.php
Source of ownForm.php
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ownForm.php</title>
</head>
<body>
<?php
if (filter_has_var(INPUT_POST, "userName")){
//the form exists - process it
$userName = filter_input(INPUT_POST, "userName");
print "<h1>Hi, $userName</h1>\n";
} else {
//no form present, so give 'em one
print <<<HERE
<form action = ""
method = "post">
<fieldset>
<label>Name</label>
<input type = "text"
name = "userName">
<button type = "submit">
submit
</button>
</fieldset>
</form>
HERE;
} // end if
?>
</body>
</html>