日期的PHP MS SQL占位符

Question

如何将日期传递到PHP和MS SQL的占位符？

我使用的示例代码：

$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); 

我无法从数据库，除非我硬编码的日期值得到任何东西。

任何人都可以请帮忙吗？

谢谢。

Answer 1

尝试......

$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); 

Answer 2

直把我的头顶部，尝试改变：

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

到

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

Answer 3

所有在 '' 或“ “我宁愿用”“;

$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); 

介意围绕变量的逗号。