我有以下代码:
<?php
//The company_array:
$company_array = array(
"AAA" => "AAA",
"BBB" => "BBB",
"CCC" => "CCC",
"DDD" => "DDD"
);
$platform_data = 'PC'; //Just to keep it short :)
foreach ($company_array as $company) {
if ($stmt = $mysqli->prepare("SELECT price, time FROM $company WHERE platform = ? ORDER BY time ASC")) {
$stmt->bind_param("s", $platform_data);
$stmt->execute();
$stmt->bind_result($price[$company], $time[$company]);
$i=0;
while ($stmt->fetch()) {
$company_info[$company][$i] = array('Price' => $price[$company], 'Time' => $time[$company]);
$i++;
}
$stmt->close();
}
?>
现在我遇到了一些问题,循环的最后一次迭代似乎打破了,如果我打印$ company_info,但最后一家公司显示正常,最后一个似乎重复所有行的最后一个值:
Array
(
[AAA] => Array
(
[0] => Array
(
[Price] => 626.8600
[Time] => 2013-09-27 14:30:06
)
[1] => Array
(
[Price] => 615.5900
[Time] => 2013-09-27 15:45:05
)
[2] => Array
(
[Price] => 604.7400
[Time] => 2013-09-27 17:45:05
)
)
[BBB] => Array
(
[0] => Array
(
[Price] => 246.7200
[Time] => 2013-09-27 14:30:06
)
[1] => Array
(
[Price] => 245.4700
[Time] => 2013-09-27 15:45:05
)
[2] => Array
(
[Price] => 244.8300
[Time] => 2013-09-27 17:45:05
)
)
[CCC] => Array
(
[0] => Array
(
[Price] => 189.0900
[Time] => 2013-09-27 14:30:06
)
[1] => Array
(
[Price] => 188.9800
[Time] => 2013-09-27 15:45:05
)
[2] => Array
(
[Price] => 188.8900
[Time] => 2013-09-27 17:45:05
)
)
[DDD] => Array
(
[0] => Array
(
[Price] => 134.3100
[Time] => 2013-10-06 13:30:06
)
[1] => Array
(
[Price] => 134.3100
[Time] => 2013-10-06 13:30:06
)
[2] => Array
(
[Price] => 134.3100
[Time] => 2013-10-06 13:30:06
)
)
)
正如您所看到的那样,公司AAA,BBB和CCC在每个阵列中都有不同的价格和时间,但公司DDD具有相同的值,重复3次(数据库中的最后一个值),当值不同时与其他公司一样。
现在从我所看到的我做错了,而不是使用foreach我应该在数组上使用implode()并使用它,但它让我困惑,因为我找不到一个很好的例子,它用于FROM字段(似乎只在WHERE上使用)
我的问题是,如何避免使用foreach循环,因为它似乎会导致问题,并在FROM字段中使用正确的implode()方法?
我猜我还需要修改我的while循环,以便输出保持相同的格式。