php - codeigniter 空格或 header 导致警告

Question

我昨天一整天都在收到警告错误，无法解决。不知道发生了什么。它提示说在第 1 行对 property_model.php 执行重定向之前发送了一些输出。我去那里检查了所有内容但没有运气。我还检查了空格。我将粘贴错误和代码。

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/sddhd/public_html/rsw/application/models/property_model.php:1)

Filename: helpers/url_helper.php

Line Number: 542

现在上面显示的模型代码是:

<? class Property_model extends CI_Model {
    function __construct()
        {
            parent::__construct();
        }

        function insert_property($propertyID)
        {
            $this->property_id = $propertyID;
            $this->type = $_POST['property_type'];
            $this->city = $_POST['property_city'];
            $this->address = $_POST['property_address'];
            $this->description = $_POST['property_description'];
            $this->owner = $_POST['property_owner'];
            $this->date_added = date("Y-m-d");
            $this->price = $_POST['property_price'];
            $this->offer_type = $_POST['property_offer'];
            $this->contact = $_POST['property_contact'];
            $this->db->insert('property', $this);
        }

        function insert_image_details($id, $url, $extension)
        {
            $current->property_id = $id;
            $current->extension = $extension;
            $current->url = $url;
            $this->db->insert('photos', $current);
        }
    }
?>

以及重定向调用的使用(包括对模型进行调用的整个 Controller 调用):

<?php
class Property extends CI_Controller {
    public function __construct()
    {
        parent::__construct();
        $this->load->helper('form');
                $this->load->helper('url');
        $this->load->model('property_model', 'propertymodel');
        $this->load->database();
    }

    public function index() {
        $this->load->view('home');
    }

    public function new_property()
    {
        $this->load->view('new_property', array('error' => '' ));    
    }

    public function create_property()
    {
        //Pass the posted data to model for insertion
        $propertyID = uniqid();
        $this->propertymodel->insert_property($propertyID); 
        $this->do_upload($propertyID);
        redirect('/home');
    }


        public function do_upload($propertyId)
        {
            $config['upload_path'] = './uploads/';
            $config['allowed_types'] = 'gif|jpg|png|jpeg';
            $config['max_size'] = '1000';
            $config['max_width']  = '1024';
            $config['max_height']  = '768';

            $this->load->library('upload', $config);
                if ( ! $this->upload->do_upload())
                {
                    $error = array('error' => $this->upload->display_errors());

                    $this->load->view('create_property', $error);
                }
                else
                {
                    $data = array('upload_data' => $this->upload->data());
                    //array to access all the file uploaded attributes
                    $image_data = $this->upload->data();

                    //parameters to be passed to model: 
                    $imgUrl = "../.".$config['upload_path'].$image_data['file_name'];
                    //$imgTitle = $image_data['file_name'];
                    $fileExtension = $image_data['file_ext'];
                    $this->propertymodel->insert_image_details($propertyId, $imgUrl, $fileExtension);
                }           
        }//end of function


}
?>

任何帮助将不胜感激

Answer 1

我遇到了同样的问题。没有任何帮助。然后我决定创建一个完整的新文件，并将导致错误的文件中的内容复制到新文件中。这奏效了!显然原始文件在位置 0 处有一个隐藏字节。