致命错误 - 调用未定义的方法"Customersss::throwError()"

Question

我创建了一个类并尝试调用一个方法，但是在我的错误日志中，我得到了响应"Uncaught Error: Call to undefined method Customersss::throwError()"，请问我做错了什么，因为我知道我已经创建了throwError()，我似乎无法访问该类。

首先，类试图调用对象

$this->throwError(INVALID_DATA_TTT, "Invalid shipping fee"); //WHERE I SUSPECT ERROR IS BEING GENERATED

完整错误

PHP Fatal error:  Uncaught Error: Call to undefined method
Customersss::throwError() in
/home/osconliz/public_html/Osconlizapicall/customers.php:276 Stack
trace:
#0 /home/osconliz/public_html/Osconlizapicall/api.php(177): Customersss->insertNewDelivery()
#1 [internal function]: Api->create_insert_new_delivery()
#2 /home/osconliz/public_html/Osconlizapicall/rest.php(42): ReflectionMethod->invoke(Object(Api))
#3 /home/osconliz/public_html/Osconlizapicall/index.php(4): Rest->processApi()
#4 {main}   thrown in /home/osconliz/public_html/Osconlizapicall/customers.php on line 276

客户.php

require_once('constants.php');
require_once('rest.php');   
class Customersss {     
private $id;
private $shipping_fee;
private $pickup_fee; 
function setId($id){ $this->id = $id; }
function getId() { return $this->id; }
function setShipping_fee($shipping_fee){ $this->shipping_fee = $shipping_fee; }
function getShipping_fee() { return $this->shipping_fee; }
function setPickup_fee($pickup_fee){ $this->pickup_fee = $pickup_fee; }
function getPickup_fee() { return $this->pickup_fee; }
public function __construct(){
$db = new DbConnect();
$this->dbConn = $db->connect();
}
public function insertNewDelivery(){
if ($this->shipping_fee == ""){
$this->throwError(EMPTY_PARAMETER, "Empty shipping fee");
exit();
}   
if ($this->shipping_fee == ""){
$this->throwError(INVALID_DATA_TTT, "Invalid shipping fee");
exit();
}   
}

}

休息.php

require_once('constants.php');
class Rest {
protected $request;
protected $serviceName;
protected $param;
public function processApi(){
$api = new API;
$rMethod = new reflectionMethod('API', $this->serviceName);
if(!method_exists($api, $this->serviceName)){
$this->throwError(API_DOST_NOT_EXIST, "API does not exist");
}
$rMethod->invoke($api);
}
public function throwError($code, $message){
header("content-type: application/json");
$errorMsg = json_encode(['error' => ['status'=>$code, 'message'=>$message]]);
echo $errorMsg; exit;       
}
}

常量.php

define('INVALID_DATA_TTT',          350);
define('EMPTY_PARAMETER',           404);
define('API_DOST_NOT_EXIST',        400);
define('ACCESS_TOKEN_ERRORS',       500);

接口.php

require_once "customers.php";
require_once "constants.php";
class Api extends Rest {
public $dbConn;  
public function __construct(){
parent::__construct();  
$db = new DbConnect;
$this->dbConn = $db->connect();
}
public function create_insert_new_delivery(){
$shipping_fee= $this->validateParameter('item_category', $this->param['shipping_fee'], STRING, true);

try {
$cust = new Customersss;
}  catch (Exception $e){
$this->throwError(ACCESS_TOKEN_ERRORS, $e->getMessage());
}
}

Answer 1

您正在从Customersss类调用Rest::ThrowError()。这意味着在此上下文中无法访问您的函数。
若要从Customersss类调用此Rest方法，可以：

• 将Rest扩展到Customersss(请参阅继承(
• 使ThrowError()成为静态方法(请参阅静态(

使用继承：

class Customersss extends Rest { /* your properties/methods */ }

使用静态方法：

class Rest {
static public function throwError($code, $message){ /* your code */ }
}

可与Rest::ThrowError()一起调用