Merhaba, aşağıda yaptığım bir küçük hata nedeniyle yapmak istediğimi yapamıyorum...

    $user_id = 101;
            $file = "user-".$user_id;
            $db_name = $file;
                $new = array('sure'=>5, 'catid'=>2,'type'=>"t2", 's'=>"s2", 'amount'=>6);
                echo UpdateCart($db_name,$new);
                
   

             function UpdateCart($db_name,$data){
                    $values = jsondb_get($db_name);
   

    //$values
     /*
        {"data":
            [
        {"sure":2,"catid":1,"type":"t1","s":"s1","amount":1},
        {"sure":2,"catid":2,"type":"t2","s":"s2","amount":1},
        {"sure":2,"catid":3,"type":"t3","s":"s3","amount":1}
            ]
        }
        */
                $db_names = $db_name . ".json";
                $filename = $db_names;
                //data
                $n_id = $data['catid'];
                $n_type = $data['type'];
                $n_s = $data['s'];
                        # check file
                        if(is_file($filename)){
                            foreach($values['data'] as $value){
                        //id
                        $o_id = $value['catid'];
                        
                        //type
                        $o_type = $value['type'];
                        
                        //s
                        $o_s = $value['s'];
                        
                        //amount
                        $o_split = $value['amount'];
                        $n_split = $data['amount'];
                        $updateAmount =  $value['amount']+$data['amount'];
                    
                        if($o_id == $n_id && $o_type == $n_type && $o_split == $n_split){
                            
                            $values['amount'] = $updateAmount;
                            
                        
                             $values['data']['amount'] = $updateAmount;
                                
                                    }
                        } 
                            file_put_contents($db_names, json_encode($values));
                            $filefound = "data is update-".$updateAmount;
                                } else {
                            $filefound = add_new($data,$db_name);
                            
                        }
                    return $filefound;
            }

oluşan/varolan dosya dosya...

 {"data":
        [
    {"sure":2,"catid":1,"type":"t1","s":"s1","amount":1},
    {"sure":2,"catid":2,"type":"t2","s":"s2","amount":1},
    {"sure":2,"catid":3,"type":"t3","s":"s3","amount":1}
        ]
    }

Olması gereken dosya.

 {"data":
        [
    {"sure":2,"catid":1,"type":"t1","s":"s1","amount":1},
    {"sure":2,"catid":2,"type":"t2","s":"s2","amount":7},
    {"sure":2,"catid":3,"type":"t3","s":"s3","amount":1}
        ]
    }