Javascript Ajax多数组返回_Javascript_Php_Arrays_Ajax_Json

Javascript Ajax多数组返回

javascript php arrays ajax json

Javascript Ajax多数组返回,javascript,php,arrays,ajax,json,Javascript,Php,Arrays,Ajax,Json,目前，我尝试从ajax Post json请求中获取多数组响应。经过几个小时的努力，我现在希望能在这里得到帮助 JS AJAX响应 var data = { "myid": "1234" }; $(".the-return").html(""); $.ajax({ type: "POST", dataType: "json", url: "../post_test/ajax.php", data: data, success: function(data) {

目前，我尝试从ajax Post json请求中获取多数组响应。经过几个小时的努力，我现在希望能在这里得到帮助

JS AJAX响应

 var data = {
  "myid": "1234"
};
 $(".the-return").html("");
$.ajax({
  type: "POST",
  dataType: "json",
  url: "../post_test/ajax.php", 
  data: data,
  success: function(data) {

            $.each(data, function (i, item) {
                $(".the-return").append("JSON: " + data["messages"]+"<br>");
            });



    alert("Form submitted successfully.\nReturned json: " + data["json"]);
  }
})
return false;

所以我现在的问题是
->如何将稳定的数组返回到Ajax成功函数
->以及如何在Sucess函数中读取返回值，以便使用

在PHP网站上

    $items .= <<<EOD
                   {
        "s": "0",
        "f": "{$chat['from']}",
        "m": "{$chat['message']}"
   },

$items.=如何操作的示例。Filevarex2.php返回JSON格式的数组。文件varex1.php解码JSON数据并将其显示在“警报”窗口中。要测试下一个代码，请创建两个文本文件，使用给定的名称，复制粘贴代码，打开浏览器并运行localhost/varex1.php
，如下所示：
varex2.php
<?php

// THIS IS AN ARRAY OF ARRAYS.
$products = Array( Array( "code"  => "0401",
                          "name"  => "shoes",
                          "price" => 700
                        ),
                   Array( "code"  => "0992",
                          "name"  => "shirt",
                          "price" => 250
                        ),
                   Array( "code"  => "5800",
                          "name"  => "glasses",
                          "price" => 400
                        )
                 );
$json = json_encode( $products );
echo $json;  // ARRAY RETURNED IN JSON FORMAT.

?>

<html>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
    <script type = "text/javascript">
function myAjax () {
$.ajax( { type : 'POST',
          data : { },
          url  : 'varex2.php',
          success: function ( data ) {
            var i;
            var obj = JSON.parse( data );       // DECODE JSON DATA.
            for ( i = 0; i < obj.length; i++ )  // WALK THE SUB-OBJECTS.
              alert( obj[ i ].code + "\n" +
                     obj[ i ].name + "\n" +
                     obj[ i ].price  );
          },
          error: function ( xhr ) {
            alert( "error" );
          }
        });
}
    </script>
  </head>
  <body>
    <button onclick="myAjax()">Click here to get the data</button>
  </body>
</html>



varex1.php
<?php

// THIS IS AN ARRAY OF ARRAYS.
$products = Array( Array( "code"  => "0401",
                          "name"  => "shoes",
                          "price" => 700
                        ),
                   Array( "code"  => "0992",
                          "name"  => "shirt",
                          "price" => 250
                        ),
                   Array( "code"  => "5800",
                          "name"  => "glasses",
                          "price" => 400
                        )
                 );
$json = json_encode( $products );
echo $json;  // ARRAY RETURNED IN JSON FORMAT.

?>

<html>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
    <script type = "text/javascript">
function myAjax () {
$.ajax( { type : 'POST',
          data : { },
          url  : 'varex2.php',
          success: function ( data ) {
            var i;
            var obj = JSON.parse( data );       // DECODE JSON DATA.
            for ( i = 0; i < obj.length; i++ )  // WALK THE SUB-OBJECTS.
              alert( obj[ i ].code + "\n" +
                     obj[ i ].name + "\n" +
                     obj[ i ].price  );
          },
          error: function ( xhr ) {
            alert( "error" );
          }
        });
}
    </script>
  </head>
  <body>
    <button onclick="myAjax()">Click here to get the data</button>
  </body>
</html>


函数myAjax（）{
$.ajax（{type:'POST'，
数据：{}，
url:'varex2.php'，
成功：功能（数据）{
var i；
var obj=JSON.parse（data）；//解码JSON数据。
对于（i=0；i你能再给我解释一下吗？也许用一个代码示例来理解？如果使用JSON_encode（）函数将其编码为JSON，那就太棒了。。。我忘了在代码中添加它了，对不起。我需要类似于for-each循环的东西，比如for-each-messages-in-messages-like-for-each-messages-in-messages-alert（'get messages from…-to…，says:asdsd'）；
<html>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
    <script type = "text/javascript">
function myAjax () {
$.ajax( { type : 'POST',
          data : { },
          url  : 'varex2.php',
          success: function ( data ) {
            var i;
            var obj = JSON.parse( data );       // DECODE JSON DATA.
            for ( i = 0; i < obj.length; i++ )  // WALK THE SUB-OBJECTS.
              alert( obj[ i ].code + "\n" +
                     obj[ i ].name + "\n" +
                     obj[ i ].price  );
          },
          error: function ( xhr ) {
            alert( "error" );
          }
        });
}
    </script>
  </head>
  <body>
    <button onclick="myAjax()">Click here to get the data</button>
  </body>
</html>