Javascript ajax请求不响应
这是我的代码我做了什么Javascript ajax请求不响应,javascript,php,ajax,Javascript,Php,Ajax,这是我的代码我做了什么 function price() { var quantity = document.getElementById("quan").value; var select = document.getElementById("p_id"); var product_id = select.options[select.selectedIndex].value; if (window.XMLHttpRequest) { /
function price() {
var quantity = document.getElementById("quan").value;
var select = document.getElementById("p_id");
var product_id = select.options[select.selectedIndex].value;
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
//alert("working");
document.getElementById("price_ajax").innerHTML = this.responseText;
}
}
xmlhttp.open("GET", "get_product.php?p_id=" + product_id + "&quantity=" + quantity);
xmlhttp.send();
<input class="form-control" type="number" name="price[]" id="price_ajax" >
下面是我执行ajax请求的php代码:
$p_id = intval($_GET['p_id']);
$quantity = intval($_GET['quantity']);
$connection=new Database();
$sth=$connection->DBH->prepare("SELECT `unit_price` FROM `product_lookup` WHERE `id`=?");
$sth->bindParam(1,$p_id);
$sth->setFetchMode(PDO::FETCH_OBJ);
$rs=$sth->execute();
$row =$sth->fetch();
$product_price= intval($row->unit_price);
$total_price=$product_price*$quantity;
?>
<input value="<?php echo $p_id?>">
<input class="form-control" type="number" name="price[]" id="price_ajax" >
$p_id=intval($_GET['p_id']);
$quantity=intval($_GET['quantity']);
$connection=新数据库();
$sth=$connection->DBH->prepare(“从'product\u lookup'中选择'unit\u price',其中'id`=?”;
$sth->bindParam(1,$p_id);
$sth->setFetchMode(PDO::FETCH_OBJ);
$rs=$sth->execute();
$row=$sth->fetch();
$product\U price=intval($row->单价);
$总价=$产品价格*$数量;
?>
我想你忘了包括你的HTMLNow你忘了包括你实际调用价格的地方()@blue Boy我包括HTMLNow按F12并查看控制台@mplungjan我添加了oninput