SELECT * FROM users WHERE user=''<br>not valid email<br>not valid phone<br>not valid url<br><form action="test.php" method="post">
	<p>database input: <input type="text" name="database_input" id="database_input" value="" /></p>
    <p>email: <input type="text" name="email" id="email" value="" /></p>
    <p>phone: <input type="text" name="phone" id="phone" value="" /></p>
    <p>url: <input type="text" name="url" id="url" value="" /></p>
    <p><input type="submit" name="test" id="dtest" value="Test" /></p>
</form>