当前位置:Gxlcms > PHP教程 > ajaxPOSTjson对象给PHP,PHP如何接收值

ajaxPOSTjson对象给PHP,PHP如何接收值

时间:2021-07-01 10:21:17 帮助过:4人阅读

前端:
    $("#save_config_btn").click(function(){            $.ajaxSetup({        cache:false,        contentType : "application/x-www-form-urlencoded; charset=utf-8"      });            var fields = $("#rss_form").serializeArray();         fields = JSON.stringify(fields)  //中文会乱码           $.ajax({        type: "POST",        url : "edit.php",        data: fields,        success: function(msg){          alert(msg);        }      });                            });

PHP:
';print_r($data);?>

通过 JSON.stringify 获取到的json格式如下:
 [{ "name":"Bill" , "value":"Gates" },{ "name":"George" , "value":"Bush" },{ "name":"Thomas" , "value":"Carter" }]

PHP,这里POST的接收值不知道用什么,如果把上面的json字符串改成如下格式,那么PHP即可接受到并直接返回数组格式
 {"data":[{ "name":"Bill" , "value":"Gates" },{ "name":"George" , "value":"Bush" },{ "name":"Thomas" , "value":"Carter" }]}

总结下主要想问两个问题:

1、JQuery如何把serializeArray()获取到的json对象转换为 第二种格式的json字符串 且保证中文不会乱码

2、或者php如何直接接收 json对象 或者 第一种格式的 json字符串


回复讨论(解决方案)

1、JQuery如何把serializeArray()获取到的json对象转换为 第二种格式的json字符串 且保证中文不会乱码

保证不乱码,需要在header加入


第二种数组格式
var fields = $("#rss_form").serializeArray();
var t = {};
t['data'] = fields
fields = JSON.stringify(t);

2、或者php如何直接接收 json对象 或者 第一种格式的 json字符串
用第一种json字符串提交例子:

        js test      

demo.php


运行后:
test.log内容为[{"name":"中文","value":"中文"},{"name":"中文","value":"中文"},{"name":"中文","value":"中文"}]
如果没有加 则会乱码。

1、ajax 本身就是以 utf-8 编码传输,所以不需要再有 charset=utf-8 声明
2、jq 的 post 方式已经发了 application/x-www-form-urlencoded 头,也不需要你再劳动了
所以

      $.ajaxSetup({        cache:false,        contentType : "application/x-www-form-urlencoded; charset=utf-8"      });
一段是不需要的。考虑的 IE 的缓存可能会影响效果,可以把 cache: false 作为 $.ajax 的参数
      $.ajax({        cache: false,        type: "POST",

3、JSON.stringify 是 json2.js 类库提供的,不属于 jq 的范畴。所以 jq 并不需要使用他来加工数据
况且 JSON.stringify 将对象(数组)转换成了 json 格式串,用它发送时,服务端还需解码
4、为了便于说明问题,我做了一个测试例
php 端 jq_server.php
<?phpecho $s = print_r($_POST, 1);var_dump('is utf-8 ?', mb_check_encoding($s, 'utf-8'));</pre>html 端  <pre class="sycode" name="code"></pre>    <br /> 去掉 fields = JSON.stringify(fields); 后  <br />    <br /> 把 var fields = $("#rss_form").serializeArray();  <br /> 改为  var fields = $("#rss_form").serialize();  <br /> 把 data: {data : fields},  <br /> 还原成 data: fields,  <br />    <br />  <br /> 既然你是在学习 jquery 的 ajax 的使用,那么就该多做一些测试 </p> <p class="sougouAnswer">  太感谢了,非常感谢两位的解答                    </div>

                  

	 	
                    <div class="">
                        <ul class="m-news-opt fix">
                            <li class="opt-item">
                                <a href='/PHPjiqiao-140721.html' target='_blank'><p>< 上一篇</p><p class="ellipsis">Mysql搬移,数据表出问题,怎么修复?</p></a>
                            </li>
                            <li class="opt-item ta-r">
                                 <a href='/PHPjiqiao-140723.html' target='_blank'><p>下一篇 ></p><p class="ellipsis">name是变量,如何把VALUE写入数据库</p></a>
                            </li>
                        </ul>
                    </div>
                    
                    
                    
                    
                </div>
              
                    </div>
                
                  

                    <div class="g-title fix">
                        <h2 class="title-txt">人气教程排行</h2>
                    </div>
                    <div class="m-rank u-dashed mb40">
			
                        <ul>
						
 <li class="rank-item">
                                <a href="/PHPjiqiao-379253.html" title='php如何获取跳转前的url' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num top">1</span>
                                   php如何获取跳转前的url                                </a>
                            </li>							  								  														  <li class="rank-item">
                                <a href="/PHPjiqiao-379019.html" title='php格林威治时间转换成当前时间的方法' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num second">2</span>
                                   php格林威治时间转换成当前时间的方法                                </a>
                            </li>								  														  								  <li class="rank-item">
                                <a href="/PHPjiqiao-366629.html" title='为什么php不能做大型系统?' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num third">3</span>
                                   为什么php不能做大型系统?                                </a>
                            </li>														  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-207623.html" title='range函数怎么用' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">4</span>
                                   range函数怎么用                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-162433.html" title='php中计算页面加载时间几种方法总结_PHP教程' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">5</span>
                                   php中计算页面加载时间几种方法总结_PHP教程                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-140221.html" title='求帮助,关于paypal支付返回值修改订单状态' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">6</span>
                                   求帮助,关于paypal支付返回值修改订单状态                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-103588.html" title='typecho怎么配置文章内容页?' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">7</span>
                                   typecho怎么配置文章内容页?                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-99213.html" title='PhpStorm左侧structure不显示文件的方法列表是这么回事?' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">8</span>
                                   PhpStorm左侧structure不显示文件的方法列表是这么回事?                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-92208.html" title='查看PHP的环境变量_PHP' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">9</span>
                                   查看PHP的环境变量_PHP                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-170.html" title='PHP Primary script unknown 解决方法总结' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">10</span>
                                   PHP Primary script unknown 解决方法总结                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-148.html" title='php的命名空间与自动加载实现方法' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">11</span>
                                   php的命名空间与自动加载实现方法                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-133.html" title='解决laravel 出现ajax请求419(unknown status)的问题' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">174次</span>
                                    <span class="g-sort-num ">12</span>
                                   解决laravel 出现ajax请求419(unknown status)的问题                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-462817.html" title='php 如何删除mysql记录' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">13</span>
                                   php 如何删除mysql记录                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-388448.html" title='PHP如何替换数组中的指定元素' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">14</span>
                                   PHP如何替换数组中的指定元素                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-124270.html" title='怎么去除字符串中非汉字、非字母、非数字的字符' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">15</span>
                                   怎么去除字符串中非汉字、非字母、非数字的字符                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-112291.html" title='mysql如何一次执行多条SQL语句' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">16</span>
                                   mysql如何一次执行多条SQL语句                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-110669.html" title='修改header里面的Connection为close解决方法' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">17</span>
                                   修改header里面的Connection为close解决方法                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-153.html" title='PHP基于session.upload_progress 实现文件上传进度显示功能详解' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">18</span>
                                   PHP基于session.upload_progress 实现文件上传进度显示功能详解                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-125.html" title='php5.6.x到php7.0.x特性小结' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">173次</span>
                                    <span class="g-sort-num ">19</span>
                                   php5.6.x到php7.0.x特性小结                                </a>
                            </li>							  								  							<li class="rank-item">
                                <a href="/PHPjiqiao-378118.html" title='php为什么会出现504错误' class="item-name ellipsis" target="_blank">
                                    <span class="g-art-count fr">172次</span>
                                    <span class="g-sort-num ">20</span>
                                   php为什么会出现504错误                                </a>
                            </li>

                        </ul>
                    </div>
                </div>
            </div>
            <!-- / 教程内容页 -->
        </div>
    </div>
  
<!-- 页尾 -->
<div class="footer">
   本站所有资源全部来源于网络,若本站发布的内容侵害到您的隐私或者利益,请联系我们删除!</div>
<!-- / 页尾 -->

 <script type="text/javascript" src="/kan/js/read.js"></script>

<div style="display:none">
<div class="login-box" id="login-dialog">
<div class="login-top"><a class="current" rel="nofollow" id="login1" onclick="setTab('login',1,2);" >登录</a></div>
<div class="login-form" id="nav-signin">
 <!-- <div class="login-ico"><a rel="nofollow" class="qq" id="qqlogin" target="_blank" href="/user-center-qqlogin.html"> QQ </a></div>  -->


<div class="login-box-form" id="con_login_1">
<form id="loginform" action="/user-center-login.html" method="post" onsubmit="return false;">
<p class="int-text">
<input class="email" id="username" name="username" type="text" value="用户名或Email" onfocus="if(this.value=='用户名或Email'){this.value='';}" onblur="if(this.value==''){this.value='用户名或Email';};" ></p>
<p class="int-text">
<input class="password1" type="password" id="password" name="password"  value="******"  onBlur="if(this.value=='') this.value='******';" onFocus="if(this.value=='******') this.value='';" >
</p>
<p class="int-info">
                <label class="ui-label">&nbsp;</label>
                <label for="agreement" class="ui-label-checkbox">
                <input type="checkbox" value="" name="cookietime" id="cookietime" checked="checked" value="2592000">
                <input type="hidden" name="notforward" id="notforward" value="1">
                <input  type="hidden" name="dosubmit" id="dosubmit" value="1">记住我的登录 </label>                           
       <a rel="nofollow" class="aright" href="/user-center-forgetpwd.html" target="_blank"> 忘记密码? </a></p>
  <p class="int-btn"><a rel="nofollow" id="loginbt"  class="loginbtn"><span>登录</span></a></p> 
  </form>
</div>
<form id="regform" action="/user-center-reg.html" method="post">
<div  class="login-reg" style="display: none;" id="con_login_2">
<input type="hidden" name="t" id="t"/>
  <p class="int-text">
    <input  id="email" name="email" type="text" value="Email" onfocus="if(this.value=='Email'){this.value='';}" onblur="if(this.value==''){this.value='Email';};"></p>
    <p class="int-text">
    <input id="uname" name="username" type="text" value="用户名或昵称" onfocus="if(this.value=='用户名或昵称'){this.value='';}" onblur="if(this.value==''){this.value='用户名或昵称';};"></p>
  <p class="int-text">
  <input  type="password" id="pwd" name="password" value="******"  onBlur="if(this.value=='') this.value='******';" onFocus="if(this.value=='******') this.value='';"> </p>
  <p class="int-text1"><span class="inputbox">
    <input id="validate" name="validate" type="text" value="验证码" onfocus="if(this.value=='验证码'){this.value='';}" onblur="if(this.value==''){this.value='验证码';};">
    </span><span class="yzm-img"><img src="/user-checkcode-index" alt="看不清楚换一张"  id="indexlogin"></p>
  <p class="int-info">
    <label>
      <input value="" name="agreement" id="agreement" CHECKED="checked" type="checkbox">
      我已阅读<a rel="nofollow" href="/user-center-agreement.html">用户协议</a>及<a rel="nofollow" href="/user-center-agreement.html">版权声明</a></label>
  </p>
  <p class="int-btn"><input type="hidden" name="dosubmit"/>
<a rel="nofollow" class="loginbtn"  id="register"><span>注册</span></a></p>
</div>
 </form>
</div>
</div>

</div>















</div>
 
<script type="text/javascript" src="/kan/js/foot_js.js"></script>   
<script>
var _hmt = _hmt || [];
(function() {
  var hm = document.createElement("script");
  hm.src = "https://hm.baidu.com/hm.js?6dc1c3c5281cf70f49bc0bc860ec24f2";
  var s = document.getElementsByTagName("script")[0]; 
  s.parentNode.insertBefore(hm, s);
})();
</script>
 <script type="text/javascript" src="/layui/layui.js"></script>
    <script>
    layui.use('code', function() {
        layui.code({
            elem: 'pre', //默认值为.layui-code
            about: false,
            skin: 'notepad',
            title: 'php怎么实现数据库验证跳转代码块',
            encode: true //是否转义html标签。默认不开启
        });
    });
    </script>

</body>

</html>