jQuery simple Ajax call example

jQuery It’s really convenient. Let’s make a simple Ajax call:

Create a simple html file:

nbsp;HTML><script></script><script>
    $(function(){        //按钮单击时执行        $("#testAjax").click(function(){              //取Ajax返回结果
              //为了简单，这里简单地从文件中读取内容作为返回数据              htmlobj=$.ajax({url:"/Readme.txt",async:false});               //显示Ajax返回结果               $("#myp").html(htmlobj.responseText);
         });
    });</script>    
    
        <p></p><h2 id="通过-AJAX-改变文本">通过 AJAX 改变文本</h2>
        <button>Ajax改变内容</button>
    

Okay, click the button to see the effect.

Of course, jQuery's Ajax call can control many items, and a simple call is demonstrated here.

Pay attention to your own jqueryreferencepath.

Okay, let’s do an example of calling the background:

nbsp;HTML><script></script><script>
    $(function(){        //按钮单击时执行        $("#testAjax").click(function(){              
              //Ajax调用处理
            var html = $.ajax({
               type: "POST",
               url: "test.php",
               data: "name=garfield&age=18",
               async: false

            }).responseText;
            $("#myp").html(&#39;<h2>&#39;+html+&#39;&#39;);
         });
    });</script>    
    
        <p></p><h2 id="通过-AJAX-改变文本">通过 AJAX 改变文本</h2>
        <button>Ajax改变内容</button>
    

Backend code:

<?php     $msg=&#39;Hello,&#39;.$_POST[&#39;name&#39;].&#39;,your age is &#39;.$_POST[&#39;age&#39;].&#39;!&#39;;    echo $msg;

Now you can get data from the background!

Of course, we can also call Ajax like this:

nbsp;HTML><script></script><script>
    $(function(){        //按钮单击时执行        $("#testAjax").click(function(){              
              //Ajax调用处理            $.ajax({
               type: "POST",
               url: "test.php",
               data: "name=garfield&age=18",
               success: function(data){
                        $("#myp").html(&#39;<h2>&#39;+data+&#39;&#39;);
                  }
            });
            
         });
    });</script>    
    
        <p></p><h2 id="通过-AJAX-改变文本">通过 AJAX 改变文本</h2>
        <button>Ajax改变内容</button>
    

Note that the data parameter in

success: function(data)

can be changed to another name, such as success: function( msg), msg(data) is the returned data. This is the parameter of the callback function, not the data parameter in the Ajax call in

data: "name=garfield&age=18"

.

The above is the detailed content of jQuery simple Ajax call example. For more information, please follow other related articles on the PHP Chinese website!