Question

好吧所以我试着在我的index.php上调用一个函数来调用misc.php上的一个函数。 misc.php上的函数在auction-loop.php上使用了一个数组，但它返回就好像变量未定义一样。

这是我的auction-loop.php的样子，

<?php
$auctions = array();
$row = array();
$sqlquery = "SELECT * FROM auctions";
if ($result = $db->query($sqlquery)) {
    while ($row = $result->fetch_assoc()) {
        $auctions[$row['id']]['id'] = $row['id'];
        $auctions[$row['id']]['title'] = $row['title'];
        $auctions[$row['id']]['featured_image'] = $row['featured_image'];
        $auctions[$row['id']]['description'] = $row['description'];
        $auctions[$row['id']]['date'] = $row['date'];
        $auctions[$row['id']]['location'] = $row['location'];
        $auctions[$row['id']]['highlights'] = $row['highlights'];
        $auctions[$row['id']]['catagories'] = $row['catagories'];
        $auctions[$row['id']]['notes'] = $row['notes'];
        $auctions[$row['id']]['terms'] = $row['terms'];
        $auctions[$row['id']]['contact'] = $row['contact'];
    }
}
?>

这是misc.php，

<?php
function auction_title($auction_id){
    echo $auctions[$auction_id]['title'];
}
?>

最后，在index.php上调用函数，

include_once ('parts/connections/connection.php'); 
include_once ('parts/staticfiles/auction-loop.php');
include_once ('parts/staticfiles/misc.php'); 
<?php auction_title(1); ?>

所有这些，它正在吐出错误，

注意：未定义的变量：第8行的D：\ xampp \ htdocs \ parts \ staticfiles \ misc.php中的拍卖

数组是否在auction-loop.php上设置，而不是将其设为misc。提前致谢！：）

Answer 1

您没有将$ auction变量发送到auction_title（）函数。如果你想住在2005年，你可以放 auction_title（）函数中的全球$ auction。或者，处理它的更好方法是重新定义函数以接受两个参数。

function auction_title($auctions=array(),$auction_id=0){

    if (!empty($auctions) && isset($auctions[$auction_id])){
       return $auctions[$auction_id]['title'];
    }

}

希望有所帮助。

Answer 2

您必须告诉function auction_title它将使用global $auctions变量。

function auction_title($auction_id) {
  global $auctions;
  echo $auctions[$auction_id]['title'];
}

在另一个PHP文档中获取变量集

2 个答案: