这篇文章主要介绍了php动态绑定变量的用法,涉及php变量的判定与动态定义的相关技巧,需要的朋友可以参考下
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)) {
- $types .= 'i'; //integer
- } elseif (is_float($param)) {
- $types .= 'd'; //double
- } elseif (is_string($param)) {
- $types .= 's'; //string
- } else {
- $types .= 'b';
- //blob and unknown
- }
- }
- $bind_names[] = $types;
- //first param needed is the type string
- // eg: 'issss'
- for ($i=0; $i<count($params);$i++) {
- //go through incoming params and added em to array
- $bind_name = 'bind' . $i;
- //give them an arbitrary name
- $$bind_name = $params[$i];
- //add the parameter to the variable variable
- $bind_names[] = &$$bind_name;
- //now associate the variable as an element in an array
- }
- //call the function bind_param with dynamic params
- call_user_func_array(array($stmt,'bind_param'),$bind_names);
- }
- return $stmt; //return the bound statement
希望本文所述对大家的php程序设计有所帮助。
新闻热点
疑难解答