php - PHP 作为 Javascript 数组元素

Question

<script type="text/javascript">
var category = new Array("category1", "category2");
</script>

我的问题是，我有这个 PHP 查询：

<?php $query = mysql_query("SELECT category FROM table ORDER BY category DESC") or die(mysql_error());
while($sql = mysql_fetch_assoc($query))
{
echo $sql['category'];
}
?>

如何添加 $sql['category'] 作为 javascript "category" 的参数？

Answer 1

<?php $query = mysql_query("SELECT category FROM table ORDER BY category DESC") or die(mysql_error());

$categories=array();
while($sql = mysql_fetch_assoc($query))
{
$categories[]= $sql['category'];
}

echo json_encode($categories);
?>

Answer 2

如果只是一个：

<script type="text/javascript">
var category = new Array("category1", "category2", "<?php echo $category; ?>");
</script>

其他（尽管它也适用于一个）：

<?php $query = mysql_query("SELECT category FROM table ORDER BY category DESC") or die(mysql_error());
$categories = array();
while($sql = mysql_fetch_assoc($query))
{
    $categories[] = $sql['category'];
}
?>
<script type="text/javascript">
    var categories = new Array("<?php echo implode('","',$categories); ?>");
</script>

Answer 3

有很多方法可以做到这一点。一个例子可以是：

<script type="text/javascript">
    var category = new Array(
        <?php
            while($sql = mysql_fetch_assoc($query))
            {
                echo "'{$sql['category']}'";
            }
        ?>
    );
</script>