如題
有加不能接收

沒加就可以

以下php

<?php
header('Content-Type: application/json; charset=UTF-8');
include 'jsonFormat.php';

if(isset($_POST["filename"])){
    $filename =$_POST["filename"];

    $wherefile='';
    //切割字串成陣列
    $fileNameCmps = explode(".", $filename);
     // 取副檔名
    $fileExtension = strtolower(end($fileNameCmps));
   
    if($fileExtension=='apk'){
        $wherefile='apkfile/';
      }else{
        $wherefile='ipafile/';
      }
    
    $filepath = "uploaded_files/".$wherefile. $filename;
  
    if(file_exists($filepath)){
        
        // unlink($filepath);
    
        // 開啟json檔
        $data=file_get_contents('record.json');
        $list = json_decode($data,true); 
        // $list=$list['filename'];
        // echo json_encode($list[0]['data'][0]['listname']);
       
        // 找出選到要刪除的資料

        for($i=0;$i<count($list['filename']);$i++){             
            for($j=0;$j<count($list['filename'][$i]['data']);$j++){
                if($list['filename'][$i]['data'][$j]['listname']==$filename){
                    if(count($list['filename'][$i]['data'])==1){   
                    // 用unset 會讓array型態變object
                    unset($list['filename'][$i]); 
                    // 用sort校正回array
                    sort($list['filename']);
                    }else{            
                    unset($list['filename'][$i]['data'][$j]); 
                    sort($list['filename'][$i]['data']);
                    }
                    break;
                }
            }
        }       
        // file_put_contents("record.json", jsonFormat($list));
        
        echo json_encode('okk');
    }
}

以下為ajax

$(document).ready(function () {
    $('.del').each(function () {
        $(this).click(function () {
            let filename=$(this).parent().parent().find('.name').html()
       
            $.ajax({
                type: "POST",
                url: "delete.php",
                dataType:"json", 
                data: { 
                   filename:filename,
                },
                success: function(data) {
                    console.log(data)
                   
                },
                error: function(jqXHR) {
                    console.log("沒回啦")
                    // window.location.reload();
                }
            })
        })
    })
});

有大大提供解決辦法嗎?
感謝!!