Javascript 如何使用ajax将数组从php返回到javascript
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时间：2020-08-24 01:30:28 来源:igfitidea点击:
how can I return array from php to javascript using ajax
提问by William Kinaan
i have this ajax code
我有这个ajax代码
xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById('addIO').innerHTML+=xmlhttp.responseText;
}
}
xmlhttp.open("GET","http://localhost/Mar7ba/Ontology/getRelatedConceptsAndRelations/3/TRUE",true);
xmlhttp.send();
and I have a php array
我有一个 php 数组
$cars=array("Saab","Volvo","BMW","Toyota");
$cars=array("Saab","Volvo","BMW","Toyota");
how can i send the array $cars to my javascript ?
我如何将数组 $cars 发送到我的 javascript ？
回答by u283863
PHP
PHP
echo json_encode($cars);
JavaScript
JavaScript
Native:
本地：
var foo = JSON.parse(xmlhttp.responseText);
With jQuery:
使用 jQuery：
var foo = $.parseJSON(xmlhttp.responseText);
//or
$.getJSON("url", function(data){
//data is your array
});
UPDATE
更新
if(xmlhttp.readyState==4 && xmlhttp.status==200){
//document.getElementById('addIO').innerHTML+=xmlhttp.responseText;
var cars = JSON.parse(xmlhttp.responseText); //cars will now be the array.
//Do whatever you want here.
$("#addIO").html(cars.join(", ")); //Join array with ", " then put it in addIO
}
If you want to use jQuery, put this in <head>:
如果您想使用 jQuery，请将其放入<head>：
<script type="text/javascript" src="link/to/the/file/jquery.js"></script>
