在name中用数组来储存勾选内容

<form action="fuxuan_rec.php" method="post">
    黄瓜<input type="checkbox" value="黄瓜" name="veg[]">
    番茄<input type="checkbox" value="番茄" name="veg[]">
    茄子<input type="checkbox" value="茄子" name="veg[]">
    香蕉<input type="checkbox" value="香蕉" name="veg[]">
    萝卜<input type="checkbox" value="萝卜" name="veg[]">
    <input type="submit" value="提交到数据库">
</form>

<?php
header("content-type:text/html;charset=utf-8");

$veg = $_POST['veg'];
foreach ($veg as $value){
    echo $value;
}