PHP implements image uploading and cutting functions. PHP image upload class. PHP mobile phone uploads images. PHP mobile phone uploads images.-PHP Tutorial-php.cn

PHP implements image uploading and cutting functions. PHP image upload class. PHP mobile phone uploads images. PHP mobile phone uploads images.

WBOY

Release： 2016-07-29 08:50:37

Original

1331 people have browsed it

The example in this article introduces the specific code of PHP to implement image uploading and cutting functions in detail for your reference. The specific content is as follows

<&#63;php
defined('BASEPATH') OR exit('No direct script access allowed');
 
class Index extends MY_Controller {
  function __construct(){
    parent::__construct();
    $this->load->helper(array('form', 'url'));
  }
 
  /**
   * 首页
   */
  public function index() {
    $this->load->view('upload_form', array('error' => ' ' ));
  }
   
   
  public function do_upload()
  {
    $config['upload_path']   = './data/uploads/';
    $config['allowed_types']  = 'gif|jpg|png';
    $config['max_size']   = 100;
    $config['max_width']    = 1024;
    $config['max_height']    = 768;
 
    $this->load->library('upload', $config);
 
    if ( ! $this->upload->do_upload('userfile'))
    {
      $error = array('error' => $this->upload->display_errors());
 
      $this->load->view('upload_form', $error);
    }
    else
    {
      $data = array('upload_data' => $this->upload->data());
       
      $this->load->library('image_lib');      
      list($width, $height) = getimagesize($data['upload_data']['full_path']);
      $config['image_library'] = 'gd2';
      $config['source_image'] = $data['upload_data']['full_path'];
      $config['maintain_ratio'] = TRUE;
      if($width >= $height)
      {
        $config['master_dim'] = 'height';
      }else{
        $config['master_dim'] = 'width';
      }
      $config['width'] = 180;
      $config['height'] = 180;
      $this->image_lib->initialize($config);
      $this->image_lib->resize();
     
      $config['maintain_ratio'] = FALSE;
      if($width >= $height)
      {
        $config['x_axis'] = floor(($width * 180 / $height - 180)/2);
      }else{
        $config['y_axis'] = floor(($height * 180 / $width - 180)/2);
      }
      $this->image_lib->initialize($config);
      $this->image_lib->crop();
       
      $this->load->view('upload_success', $data);
    }
  }
}

Copy after login

The above is the entire content of this article. I hope it will be helpful to everyone in learning PHP programming.

The above introduces the image uploading and cutting functions in PHP, including image uploading and PHP content. I hope it will be helpful to friends who are interested in PHP tutorials.