PHP准备语句Foreach循环

Question

以下代码仅返回一个结果。其余五项结果为空白。我怎样才能返回所有行？

foreach($dates as $date){

    if($stmt->prepare("SELECT event FROM calendar WHERE date = ?")) {

        $stmt->bind_param('i',$date);

        $stmt->execute();

        $stmt->bind_result($event);

        $stmt->store_result();

        while($stmt->fetch()) {
            echo $event;
        }
        $stmt->close();
    }
}

Answer 1

您在第一次执行foreach循环时关闭了预准备语句。

将您的$stmt->prepare("SELECT event FROM calendar WHERE date = ?")移到foreach循环之外并

在foreach循环之外的

$stmt->close()