[英]Passing javascript variables to another php page
I have a select list where in using javascript i get the selected values i want this selected values to pass through php file init.php so that i can use those variables in mysql query. 我有一个选择列表,在其中我可以使用javascript获取选定的值,我希望该选定的值通过php文件init.php传递,以便我可以在mysql查询中使用这些变量。 my javascript code is as follows:
我的JavaScript代码如下:
$(document).ready(function(){
var e = document.getElementById("product");
var pro = e.options[e.selectedIndex].text;
alert(pro);
});
$('select').change(function(){
var e = document.getElementById("city");
var cit = e.options[e.selectedIndex].text;
alert(cit);
I have used ajax to send variables to init.php. 我已经使用ajax将变量发送到init.php。 my ajax code below is not working,can anyone tell whats the issue in this code:
我下面的ajax代码无法正常工作,任何人都可以告诉此代码什么问题:
$.ajax({
url: 'init.php',
type: 'POST',
data: { x:'cit',y:'pro' },
success: function(data) {
console.log(data);
}
});
and in init.php i have written : 在init.php中,我写了:
<?php
$var1 = $_POST['y'];
$var2 = $_POST['x'];
$result = "Select amount from ". _DB_PREFIX_ ."demo_detail where product = '". $var1 ."' and city = '" . $var2 . "' ";
//echo json_encode($result);
Can you alter the url
line to include the / to make sure that you're referring init.php
relative to the root of your directory? 您是否可以更改
url
行以包含/来确保相对于目录根引用的是init.php
?
So it should look like this: 所以它应该看起来像这样:
$.ajax({
url: '/init.php',
type: 'POST',
data: { x:'cit',y:'pro' },
success: function(data) {
console.log(data);
}
});
I don't know enough to say for sure but there's a chance that AJAX is making a POST request to the wrong URL. 我不太清楚可以肯定地说,但是AJAX有可能向错误的URL发出POST请求。
Have you tried to pass absolute as well as relative path in url. 您是否尝试过在URL中传递绝对路径以及相对路径。 What I mean is have you tried using:
我的意思是您是否尝试过使用:
url:'localhost:xxxx/myapp/init.php'
or 要么
url:'/init.php'
If you're passing variables into the data parameter in Ajax, they don't have to be in quotes. 如果要将变量传递到Ajax的data参数中,则不必在引号中添加变量。
$.ajax({
url: 'init.php',
type: 'POST',
data: { x: cit, y: pro },
success: function(data) {
console.log(data);
}
});
Use Query String. 使用查询字符串。 HTML5's Session Storage can also help you.
HTML5的会话存储也可以为您提供帮助。
Try to replace your script code with following and see if it makes a difference 尝试将脚本代码替换为以下代码,看看是否有区别
$(document).ready(function(){
$('select').change(function(){
var e = document.getElementById("product");
var pro = e.options[e.selectedIndex].text;
alert(pro);
var e = document.getElementById("city");
var cit = e.options[e.selectedIndex].text;
alert(cit);
$.ajax({
type: 'POST',
url: 'init.php',
data: { x:'cit',y:'pro' },
success: function(data) {
console.log(data);
}
});
});
});
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