Question

我是PHP编码的新手，我正在尝试使用Slim 3.我只是想编写一个添加函数来添加 fname，lname，address，email＆amp;年龄。 我一直收到错误：

＆＃34;致命错误：在＆＃34;
中的数组上调用带有Json（）的成员函数

这是为了这一行：

"return $res->withJson(["person"=>$data],404)->withAddedHeader('Location',"/users/$id", ["text"=>"person does not exist"]);" after the "catch(PDOException $e) {".

提前致谢..

以下是代码：

<?php
/POST /persons : add a new person
$app->post('/persons', function ($req, $res){
    try{
// check if all data is there
    $data=$req->getParsedBody();


    $filter = [
         'fname' => [
            'filter' => FILTER_VALIDATE_REGEXP,
            'options' => [
               'regexp' => '/[a-zA-Z]+/'
            ]
         ],
         'lname' => [
            'filter' => FILTER_VALIDATE_REGEXP,
            'options' => [
            'regexp' => '/[a-zA-Z]+/'
            ]
         ],
         'address' => [
            'filter' => FILTER_VALIDATE_REGEXP,
            'options' => [
            'regexp' => '/[a-zA-Z]+/'
            ]
         ],
         'email' => [
            'filter' => FILTER_VALIDATE_EMAIL,
            'options' => [
            'regexp' =>'/[A-Z0-9._%+-]+@[A-Z0-9.-]+/'
            ]
         ],
         'age' => [
         'filter' => FILTER_VALIDATE_INT,
         'options' => [
         'regexp' => '/{1,100}'
         ]
         ]
    ];

    $res = filter_var_array($data,$filter);

    if(empty($data)){
        return $res->withJson( ["error"=>
                                      [ "text" => "The information provided is inadequate"]
                                      ],400);
        }else 
// ....
$sql = 'insert into person (fname, lname, address, email, age)values(:fname,:lname,:address,:email,:age)';
// prepare
$stmt =$this->db->prepare($sql);
// execute with values from $data

$stmt->execute(['fname'=>$res['fname'],'lname'=>$res['lname'],'address'=>$res['address'],'email'=>$res['email'],'age'=>$res['age']]);
// take lastinsertid and make a new header Location with it
$id = $this->db->lastInsertId();
// return a JSON saying all ok and new location

return $res->withJson(["person"=>$data],201)->withAddedHeader('Location',"/users/$id", ["text"=>"person added correctly"]);

}
 catch(PDOException $e) {
 return $res->withJson(["person"=>$data],404)->withAddedHeader('Location',"/users/$id", ["text"=>"person does not exist"]);

  }
});

Answer 1

$res = filter_var_array($data,$filter);返回数组。数组类型没有方法withJson()。这就是问题。您可能希望使用json_encode()函数。

好的，然后做两件事：

＃1。改变：

$res = filter_var_array($data,$filter);

到

$params = filter_var_array($data,$filter);

＃2。改变：

$stmt->execute(['fname'=>$res['fname'],'lname'=>$res['lname'],'address'=>$res['address'],'email'=>$res['email'],'age'=>$res['age']]);

到

$stmt->execute([
    'fname' => $params['fname'],
    'lname' => $params['lname'],
    'address' => $params['address'],
    'email' => $params['email'],
    'age' => $params['age']
]);

致命错误：在

1 个答案: