Generating image thumb in codeigniter - php

Question

I am pretty new to codeigniter and just building my first application with it, but I am abit stumped when it comes to generating a thumbnail from an image.
The image uploads correctly but the thumb isnt generating and I am getting no errors :(
I hope someone can give me a helping hand, chances are I am just being a tit and its something really simple like mis spelling var.
Heres the code for my image model:
<?php
class Image_model extends CI_Model {
var $image_path;
function Image_model(){
parent::__construct();
$this->image_path = realpath(APPPATH.'../'.$this->config->item('dir_dynamic_images'));
}
function do_upload(){
$config = array(
'allowed_types' => "jpeg|gif|jpg|png",
'upload_path' => $this->image_path,
'max_size' => 2000
);
$this->load->library('upload', $config);
$this->upload->do_upload();
$image_data = $this->upload->data();
$config = array(
'source_image' => $image_data['full_path'],
'new_image' => $this->image_path . '/thumbs',
'maintain_ratio' => true,
'width' => 200,
'height' => 200
);
echo $config['new_image'];
$this->load->library('image_lib', $config);
$this->image_lib->resize();
}
}
?>

Answer 1

I think you need to set the create_thumb parameter to true and specify the image library-
$config = array(
'image_library' => 'gd2',
'source_image' => $image_data['full_path'],
'create_thumb' => true,
'new_image' => $this->image_path . '/thumbs',
'maintain_ratio' => true,
'width' => 200,
'height' => 200
);
try finding the error with -
if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}

Answer 2

This piece of code is working for me. Hopefully it will works for you . you can also check the image manipulation helper in codeigniter. Don'f forget to initialize the config.
$config['image_library'] = 'imagemagick';
$config['library_path'] = '/usr/X11R6/bin/';
$config['source_image'] = '/path/to/image/mypic.jpg';
$config['x_axis'] = '100';
$config['y_axis'] = '60';
$this->image_lib->initialize($config);
if ( ! $this->image_lib->crop())
{
echo $this->image_lib->display_errors();
}