<?php
$val = '';
echo ($val < 0) ? 1 : 0;
<?php
$val = '';
echo ($val == 0) ? 1 : 0;
<?php
$val = '';
echo ($val < 0) ? 1 : 0;
<?php
$val = '';
echo ($val == 0) ? 1 : 0;
<head> | |
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css"> | |
<script src="https://code.jquery.com/jquery-1.12.4.js"></script> | |
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> | |
</head> | |
<body> | |
<div> | |
Year: <input type="text" id="year" value="2019"> | |
</div> |