php - 日期的 PHP MS SQL 占位符

Question

如何将日期传递给 PHP 和 MS SQL 的占位符？

我正在使用的示例代码：

$fromDate = '2013-01-01';
$toDate = '2013-02-28';
$empno = 12345;

$sqlStr = "SELECT * FROM histTable WHERE EmpNum = ?
           AND toDate >= ? AND fromDate <= ?";

$sqlResult = $this->db->query($sqlStr, $empno, $fromDate, $toDate);

除非我对日期值进行硬编码，否则我无法从数据库中获取任何信息。

有人可以帮忙吗？

谢谢你。

Answer 1

它全部在''或“”中，我宁愿使用“”；

$fromDate = '2013-01-01';
$toDate = '2013-02-28';
$empno = 12345;

$sqlStr = "SELECT * FROM histTable WHERE EmpNum = ?
       AND toDate >= '{$fromDate}' AND fromDate <= '{$toDate}' ";

$sqlResult = $this->db->query($sqlStr, $empno, $fromDate, $toDate);

注意 vars 周围的逗号。

Answer 2

直接离开我的头顶，尝试改变：

$sqlStr = "SELECT * FROM histTable WHERE EmpNum = ? AND toDate >= ? AND fromDate <= ?";

至

$sqlStr = "SELECT * FROM histTable WHERE EmpNum = ? AND toDate >= '?' AND fromDate <= '?'";

Answer 3

尝试这个 ...

$fromDate = '2013-01-01 00:00:00';
$toDate = '2013-02-28 00:00:00';
$empno = 12345;

$sqlStr = "SELECT * FROM histTable WHERE EmpNum = $empno
           AND toDate >= '$fromDate' AND fromDate <= '$toDate'";

$sqlResult = $this->db->query($sqlStr);