菜鸟求教 PHP+JS

程序是php+mysql的，在阿里云运行时一切正常，输入客户编码后自动从数据库调取其他客户信息。php版本是5。



搬到新服务器后，php版本是7，输入客户编码后没任何反应。



日志仅有下面几条报错。

PHP Warning: implode(): Invalid arguments passed in /var/www/html/action.php on line 45

但我觉得这个不是原因

html源码

<form id="form1" name="form1" method="post" action="action.php?act=add" onsubmit="return check()">

<div class="hang_tit">Customer Information</div>

<div class="hang_item">

<table width="100%" border="0" cellspacing="0" cellpadding="0">

  <tr>

    <td>Customer No.:<span class="khxx"><input name="kehu" type="text" id="kehu" size="10" placeholder="" onblur="khxx(this)"/></span></td>

    <td>Category:<span class="Category"></span></td>

    <td>Grade:<span class="Grade"></span></td>

  </tr>

  <tr>

    <td>Customer Name: <span class="khname"></span></td>

    <td>Address: <span class="address"></span></td>

    <td> </td>

  </tr>

  <tr>

    <td>Contact Person: <span class="Person"></span></td>

    <td>Email:: <span class="email"></span></td>

    <td><span class=""></span></td>

  </tr>

</table>

对应的JS代码

function khxx(obj){



khid=$(obj).attr("value");



//console.log(khid);



$.post("action.php?act=getKehu", { "khid": khid },



   function(data){



   //console.log(khid);



//$(obj).parents('tr').find('.pname').html(data.data[0].pname);



$(".Category").html(data.data[0].Category);



$(".Grade").html(data.data[0].Grade);



$(".khname").html(data.data[0].khname);



$(".address").html(data.data[0].address);



$("#d_address").val(data.data[0].address);



$(".Person").html(data.data[0].Person);



$(".email").html(data.data[0].email);



   }, "json");



}

action.php

if($act=="getKehu"){



$sql_kh="select * from customer where CustomerNo='$khid'";



$result_kh=mysqli_query($GLOBALS['conn'], $sql_kh);



        $info_kh=mysqli_fetch_array($result_kh);



$Category=$info_kh['Category'];



$Grade=$info_kh['Grade'];



$khname=$info_kh[2];



$address=$info_kh['Address'];



$Person=$info_kh['ContactPerson'];



    $email=$info_kh['Email'];



echo '{"status" : 0 ,"msg" : "SUCCESS","data"   :[{"Category":"'.$Category.'" ,"Grade"  : "'.$Grade.'","khname"  : "'.$khname.'","address"  : "'.$address.'","Person"  : "'.$Person.'","email"  : "'.$email.'"},{"id"    : 2,"name"  : "xiaoming"}]}';



}

希望各位大神帮忙看看，谢谢。

如果代码问题比较严重的话可以有偿。