php - 使用 mysql_fetch_assoc 获取数组

Question

$query = mysql_query("SELECT Name from lottery");
// Make All Lotteries Into An Array
$queryarray = mysql_fetch_array($query);
// For Each Lottery, Store the Name of It in $lottery
foreach ($queryarray as $lottery) {
    // Select IDs of Tickets in Current Selected Lottery ($lottery)
    $ticketquery = mysql_query("SELECT id FROM tickets WHERE lottery='$lottery'");
    // Create an Array from the IDS
    $ticketarray = mysql_fetch_assoc($ticketquery);
    // Select A Random ID, This Is Our Winner Ticket
    $winner = $ticketarray[array_rand($ticketarray)];
}

但是，当我运行此命令时，出现此错误:

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“警告:array_rand() [function.array-rand]:第一个参数必须是 public_html/php/lotterypick 中的数组.php 第 25 行

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我尝试用 mysql_fetch_array 替换 mysql_fetch_assoc ，但这也没有多大帮助。刚刚给了我同样的错误。有任何想法吗？谢谢。

第 25 行:$winner = $ticketarray[array_rand($ticketarray)];

Answer 1

将代码编写为:

while($lottery = mysql_fetch_array($query)){...}

可以解决问题。