分享下php处理复选框checkbox默认值的方法，代码如下：
<html>
<head>
<title>使用复选框的默认值-www.jb200.com</title>
</head>
<body>
<?php
$food = $_GET[food];
$self = htmlentities($_SERVER['PHP_SELF']);
if (!empty($food)) {
echo "您选择的内容为:<br />";
foreach($food as $foodstuf)
{
echo "<strong>".htmlentities($foodstuf)."</strong><br />";
}
}
else
{
echo ("<form action="$self" ");
echo ('method="get">
<fieldset>
<label>Italian <input type="checkbox" name="food[]" value="Italian" />
</label>
<label>Mexican <input type="checkbox" name="food[]" value="Mexican" />
</label>
<label>Chinese <input type="checkbox" name="food[]" value="Chinese"
checked="checked" /></label>
</fieldset>
<input type="submit" value="Go!" >');
}
?>
</body>
</html>