本文实例讲述了php动态绑定变量的用法。分享给大家供大家参考。具体如下:
private function bindVars($stmt,$params) {
if ($params != null) {
$types = ''; //initial sting with types
foreach($params as $param) {
//for each element, determine type and add
if(is_int($param)
搞不清楚在闭包(closures)中Python是怎样绑定变量的
看这个例子:
>>> def create_multipliers():
... return [lambda x : i * x for i in range(5)]
>>> for multiplier in create_multipliers():
... print multiplier(2)
...
期望得到下面的输出:
0
2
4
6
8
但是实际上得到的是:
8