mysqli_stmt 怎么动态绑定参数值？
mysqli_stmt 如何动态绑定参数值？？？？
mysqli_stmt 方法 bind_param，要求一次性把参数全部传入，相当于参数个数和次序必须是硬编码了，但是实际中不一定可以做得到
比如在做查询时，可能查询语句会这样写
$sql = " select * from mytable where price > 100";
if(....)
$sql .= " and price if(....)
$sql .= " and createddate if(....)
$sql .= " and employeeid = ?";
......
这时应该如何传入参数？
大家不用建议我如何改进 sql 的写法，还将会有其它类似的 sql，我这里只是举个例子，只想知道有什么办法可以动态设置参数
谢谢！
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