从.js文件将数组发布到PHP页面

Question

我正在尝试使用ajax post方法将数组从.js文件传递到PHP页面。您能帮助我了解为什么它不起作用吗？

//js file
$.ajax({
       type: "POST",
       url: "http://localhost/Project_part3/includes/graph.php",
       datatype: 'JSON',
       data: {'data1' : JSON.stringify(data1)},
       success: function(data){
        console.log("success:", data1);
    },
       failure: function(errMsg) {
        console.error("error:",errMsg);
       }
    });

//PHP page
<?php
  $data1 = json_encode($_POST["data1"]);
  var_dump ($_POST["data1"]);
?>

Answer 1

如果您的JS中的data1数组已经是一个javascript数组，则无需执行JSON.stringify()，因为这会将它变成字符串。

您现在就可以开始data: data1

var data1 = {
        yourKey1: "yourValue",
        yourKey2: "moreStuff"
    };

$.ajax({
   type: "POST",
   url: "http://localhost/Project_part3/includes/graph.php",
   datatype: 'JSON',
   data: data1,
   success: function(data){
    console.log("success:", data1);
},
   failure: function(errMsg) {
    console.error("error:",errMsg);
   }
});