如何使用PHP编写的语句

Question

我用下面准备好的语句工作以选择具体日期选择在MySQL日期的范围，它是工作的罚款：

if($stmt = $mysqli->prepare("SELECT x FROM y WHERE mydate=?")) 
{ 
$stmt->bind_param("s", $ReportDatetDate); 
$stmt->execute(); 
$stmt->bind_result($xx); 
while ($stmt->fetch()) 
{ 
echo ($xx) 
} 
$stmt->close(); 
} 
else{ 
$mysqli->close();  
} 

我需要选择其中之间的日期范围开始日期和结束日期，但我不能写出正确的选择查询..如下..我怎样才能写出正确的？

if($stmt = $mysqli->prepare("SELECT x FROM y WHERE mydate between ? AND ?")) 
{ 
$stmt->bind_param("ss", $ReportStartDate, $reportEndDate); 
$stmt->execute(); 
$stmt->bind_result($xx); 
while ($stmt->fetch()) 
{ 
echo ($xx) 
} 
$stmt->close(); 
} 
else{ 
$mysqli->close();  
} 

Answer 1

只需绑定参数是这样的：

$sql = "SELECT x FROM y WHERE mydate between :from_date AND :to_date"; 
$stmt = $db_pdo->prepare($sql); 
$stmt->execute(Array(':from_date' => $from_date, ':to_date' => $to_date)); 
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);