Codeigniter upload working offline but not online - php

Question

Hi I wanted to upload a 100 x 100 pixel image as a logo on my website for each user. It works on my localhost but doesn't work online (image is not uploaded). Well the concept is simple I just upload it and rename the image base on their ID's then display it on their page for them to view it. Another thing, the localhost version changes the image on the specified path but doesn't display it after upload somethimes but sometimes it works just fine. Well that not a big case here I just think that it might be a clue for solving this problem. Here's my code so far:
this is declared on top:
$data['base'] = $this->config->base_url();
$data['check_error'] = false;
$data['error_message'] = array();
$data['id'] = $this->session->userdata('id');
This is the code:
if (isset($_FILES['userfile']) && is_uploaded_file($_FILES['userfile']['tmp_name'])){
$new_name = $data['id'];
$config['upload_path'] = './Logos/';
$config['allowed_types'] = 'jpg|png|gif';
$config['encrypt_name'] = true;
$config['max_size'] = '100';
$config['max_width'] = '100';
$config['max_height'] = '100';
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
array_push($data['error_message'], "You have the following errors in your entry:\n");
array_push($data['error_message'], "- Logo must be 100x100 pixels in size not exceeding 100KB with JPG,PNG or GIF format");
array_push($data['error_message'], "\nLogo upload failed.");
$data['check_error'] = true;
}
else
{
$data = array('upload_data' => $this->upload->data());
//DO UPDATE PART HERE
$file = $data['upload_data']['file_name'];
rename($config['upload_path'] . $file, $config['upload_path'] .$new_name.'.jpg');
//GO TO SETTINGS
$this->load->helper('url');
redirect($data['base'].'settings');
}
}
HTML:
<tr>
<td><p class="titles">Logo</p></td>
<td>
<div>
<input type="text" id="fileName" class="file_input_textbox" readonly="readonly">
<div class="file_input_div">
<input type="button" value="Browse" class="file_input_button" />
<input type="file" class="file_input_hidden" onchange="javascript: document.getElementById('fileName').value = this.value" id="upload" name="userfile" />
</div>
</div>
</td>
</tr>
<tr>
<td>
</td>
<td>
<p class="titles">100px x 100px jpg, png or gif only.</p>
</td>
</tr>
<tr>
<td><p class="titles">Current Logo</p></td>
<td>
<img src="<?php if(is_array(#getimagesize($base."Logos/".$id.".jpg"))){echo $base."Logos/".$id.".jpg";}else{echo $base."Logos/default.jpg";} ?>" style="margin:0px 0px 0px 90px;"/>
</td>
</tr>
I also use CodeIgniter_2.1.3 and 5.4.3 in PHP locally and 5.2.17 online. Going nuts haha!

Answer 1

You should look into the file name part. Firstly you have set the condition encrypt_name to true. While you anyway rename your file to the id this is not neccesary.
You set the new filename to be equal to
$data['id'].".jpg"
this will never work if uploaded file is a GIF or PNG image...