CodeIgniter implement multiple file uploads and create multiple thumbnail _php instances

The program can implement:
1. Upload 5 photos simultaneously
2. Simultaneous generation of two-size thumbnail images
3. Save to MySQL

controllers:upload.php file:

Copy CodeThe code is as follows: Class Upload extends Controller {
function Go () {
if (isset ($_post[' Go ')) {
Initialization
$config [' upload_path '] = ' album/source ';
$config [' allowed_types '] = ' gif|jpg|png|bmp|jpeg ';
$config [' encrypt_name '] = TRUE;
$config [' remove_spaces '] = TRUE;
$config [' max_size '] = ' 0 ';
$config [' max_width '] = ' 0 ';
$config [' max_height '] = ' 0 ';

$this->load->library (' upload ', $config);

170*170 Pictures
$configThumb = Array ();
$configThumb [' image_library '] = ' gd2 ';
$configThumb [' source_image '] = ';
$configThumb [' create_thumb '] = TRUE;
$configThumb [' maintain_ratio '] = TRUE; Maintain picture proportions
$configThumb [' new_image '] = ' album/thumb ';
$configThumb [' width '] = 170;
$configThumb [' height '] = 170;
600*600 Pictures
$configLarge = Array ();
$configLarge [' image_library '] = ' gd2 ';
$configLarge [' source_image '] = ';
$configLarge [' create_thumb '] = TRUE;
$configLarge [' maintain_ratio '] = TRUE; Maintain picture proportions
$configLarge [' new_image '] = ' album/large ';
$configLarge [' width '] = 600;
$configLarge [' height '] = 600;

$this->load->library (' image_lib ');

for ($i = 1; $i < 6; $i + +) {
$upload = $this->upload->do_upload (' image '. $i);
if ($upload = = = FALSE) continue;
$data = $this->upload->data ();//Returns an array of all relevant information about the uploaded file
$uid = $this->session->userdata (' uid ');
$uploadedFiles [$i] = $data;

if ($data [' is_image '] = = 1) {
Initialize 170*170
$configThumb [' source_image '] = $data [' Full_path ']; File path with file name
$this->image_lib->initialize ($CONFIGTHUMB);
$this->image_lib->resize ();
Initialize 600*600
$configLarge [' source_image '] = $data [' Full_path ']; File path with file name
$this->image_lib->initialize ($configLarge);
$this->image_lib->resize ();
}

Insert picture information into the album table, insert the file name as the source directory file name
$picture = Array (
' filename ' = $data [' file_name '],
' albumID ' = $this->uri->segment (4,0),
' UID ' = $this->session->userdata (' uid '),
' Dateline ' = Time (),
' Describe ' = ',
' Click ' = 0
);

$this->load->model (' Album_model ');
$this->album_model->addpic ($picture);
$picture = Array ();
}
}

/* Turn out */
$albumID = $this->uri->segment (4);
$backurl = Site_url (). ' photo/editpic/album/'. $albumID;
$this->session->set_flashdata (' msg ', ' picture uploaded successfully. ');
Redirect ($backurl, ' refresh ');
}
}

Views:new_pic.view file:

Copy the Code code as follows:

Also be aware that:

1. To upload several files at once, modify the parameters of the loop part of the form and controller as well.
2.album\\source is uploaded after the original directory large and thumb are two times executed $this->image_lib->resize ();
3. thumbnail file name should be consistent with Album\\source directory, please add parameter $config [' thumb_marker '] = ';
4. $picture This part of the array is something that is saved to the database and can be used without the control.

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