March 6, 2017

Codeigniter File Helper

Codeigniter File Helper – Codeigniter file helper provides various functions which is used to access the file. $this->load->helper(‘file’); is used to load the helper. This contains the functions – read_file , write_file and delete_files. Here in this tutorial we are going to explain how to read , write and delete files in codeigniter.

Codeigniter File Helper Example

Now we will see how to load file helper in codeigniter and then use its function-

Load file Helper

How To Load File Helper in Codeingniter Example:

 
$this->load->helper('file');

Functions:-

Following functions are available in file helper.

1. Read File
2. Write File
3. Delete File

1. Read_File

Syntax of Read_File function is

Syntax of Read_File function is:-

read_file($fileName)

Parameters:

$fileName (string) : File path
Returns : File contents or FALSE on failure
Return type : string

2. write_file

Syntax of Write_File function is

Syntax of Write_File function is:-

write_file($path, $data[, $mode = 'wb'])

Parameters:

$path (string) : File Path
$data (string) : Data to write to file
$mode (string) : fopen() mode

2. Delete_files

Syntax of Delete_Files function is

Syntax of Delete_Files function is:-

delete_files($path[, $del_dir = FALSE[, $htdocs = FALSE]])

Parameters:

$path (string) : File Path
$del_dir (bool) (string) : Whether to also delete directories
$htdocs (bool) : Whether to skip deleting .htaccess and index page files
Returns : TRUE OR FALSE
Return Type : Bool

EXAMPLE 1

Here is simple example of Read File.

| Read File in Codeigniter Example:-

public function readfiles()
{
    $this->load->helper('file');
    $path = 'http://localhost/CodeIgniter/media/write.txt';
    $string = read_file($path);
    echo $string;	
}

EXAMPLE 2

Here is simple example of Write File.

| Write File in Codeigniter Example:-

public function writefiles()
{
   $this->load->helper('file');
   $path = 'http://localhost/CodeIgniter/media/new.txt';
   $data = 'Good Morning Friends';
   if ( ! write_file($path, $data))
      {
        echo 'Unable to write';
      }
   else
      {
        echo 'File written!';
      }
}

EXAMPLE 3

Here is simple example of Delete Files.

| Delete Files in Codeigniter Example:-

public function Deletefiles()
{
    $this->load->helper('file');
    $path = 'http://localhost/CodeIgniter/media/file/abc.txt';
    delete_files($path, TRUE);
}

Codeigniter File Helper