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，当我运行执行此操作时，出现此错误：

"Warning: array_rand() [function.array-rand]: First argument has to be an array in public_html/php/lotterypick.php on line 25"

我曾尝试用 mysql_fetch_array 替换 mysql_fetch_assoc ，但这也没有太大帮助。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

将代码写为：

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

会解决问题。

使用 mysql_fetch_assoc 获取数组

Fetch array with mysql_fetch_assoc

php

mysql

arrays

foreach