使用未定义的常量语句 - 假定 'statement'

Question

我尝试创建注册表单，但我找不到某个错误

class.consultas.php

    class consultas{
    public function nuevousuario($usuario, $pass, $email, $youtubeurl){
        $modelo = new conexion();
        $conexion = $modelo->get_conexion();
        $sql = "insert into fiver_users (user, pass, email, youtubeurl) values (:usuario, :pass, :email, :youtubeurl)";
        $statement = $conexion->prepare($sql);
        $statement->bindParam(':usuario', $usuario);
        $statement->bindParam(':pass', $pass);
        $statement->bindParam(':email', $email);
        $statement->bindParam(':youtubeurl', $youtubeurl);

        if(!statement){            //Line 14 is this
            return "Error al crear el registro";
        }
        else{
            $statement->execute();
            return "Registro creado correctamente";
        }

    }

我出现的错误是这样的：

Answer 1

您在语句变量前遗漏了一个 $。

    if(!statement){            //Line 14 is this
        return "Error al crear el registro";
    }

应该是

    if(!$statement){            //Line 14 is this
        return "Error al crear el registro";
    }

有关此的更多信息，请查看 Why PHP variables start with a $ sign symbol?

使用未定义的常量语句 - 假定 'statement'

Use of undefined constant statement - assumed 'statement'

php

database

pdo

registration