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Path: /home2/outerorb/hr.outerorbittech.com/application/libraries/Csvimport.php
Size: 9.44 KB
Permissions: 0644
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter CSV Import Class
*
* This library will help import a CSV file into
* an associative array.
*
* This library treats the first row of a CSV file
* as a column header row.
*
*
* @package CodeIgniter
* @subpackage Libraries
* @category Libraries
* @author Brad Stinson
*/
class Csvimport {
private $handle = "";
private $filepath = FALSE;
private $column_headers = FALSE;
private $initial_line = 0;
private $delimiter = ",";
private $detect_line_endings = FALSE;
/**
* Function that parses a CSV file and returns results
* as an array.
*
* @access public
* @param filepath string Location of the CSV file
* @param column_headers array Alternate values that will be used for array keys instead of first line of CSV
* @param detect_line_endings boolean When true sets the php INI settings to allow script to detect line endings. Needed for CSV files created on Macs.
* @param initial_line integer Sets the line of the file from which start parsing data.
* @param delimiter string The values delimiter (e.g. ";" or ",").
* @return array
*/
public function get_array($filepath=FALSE, $column_headers=FALSE, $detect_line_endings=FALSE, $initial_line=FALSE, $delimiter=FALSE)
{
// Raise memory limit (for big files)
ini_set('memory_limit', '20M');
// File path
if(! $filepath)
{
$filepath = $this->_get_filepath();
}
else
{
// If filepath provided, set it
$this->_set_filepath($filepath);
}
// If file doesn't exists, return false
if(! file_exists($filepath))
{
return FALSE;
}
// auto detect row endings
if(! $detect_line_endings)
{
$detect_line_endings = $this->_get_detect_line_endings();
}
else
{
// If detect_line_endings provided, set it
$this->_set_detect_line_endings($detect_line_endings);
}
// If true, auto detect row endings
if($detect_line_endings)
{
ini_set("auto_detect_line_endings", TRUE);
}
// Parse from this line on
if(! $initial_line)
{
$initial_line = $this->_get_initial_line();
}
else
{
$this->_set_initial_line($initial_line);
}
// Delimiter
if(! $delimiter)
{
$delimiter = $this->_get_delimiter();
}
else
{
// If delimiter provided, set it
$this->_set_delimiter($delimiter);
}
// Column headers
if(! $column_headers)
{
$column_headers = $this->_get_column_headers();
}
else
{
// If column headers provided, set them
$this->_set_column_headers($column_headers);
}
// Open the CSV for reading
$this->_get_handle();
$row = 0;
while (($data = fgetcsv($this->handle, 0, $this->delimiter)) !== FALSE)
{
if ($data[0] != NULL)
{
if($row < $this->initial_line)
{
$row++;
continue;
}
// If first row, parse for column_headers
if($row == $this->initial_line)
{
// If column_headers already provided, use them
if($this->column_headers)
{
foreach ($this->column_headers as $key => $value)
{
$column_headers[$key] = trim($value);
}
}
else // Parse first row for column_headers to use
{
foreach ($data as $key => $value)
{
$column_headers[$key] = trim($value);
}
}
}
else
{
$new_row = $row - $this->initial_line - 1; // needed so that the returned array starts at 0 instead of 1
foreach($column_headers as $key => $value) // assumes there are as many columns as their are title columns
{
$result[$new_row][$value] = utf8_encode(trim($data[$key]));
}
}
unset($data);
$row++;
}
}
$this->_close_csv();
return $result;
}
/**
* Sets the "detect_line_endings" flag
*
* @access private
* @param detect_line_endings bool The flag bit
* @return void
*/
private function _set_detect_line_endings($detect_line_endings)
{
$this->detect_line_endings = $detect_line_endings;
}
/**
* Sets the "detect_line_endings" flag
*
* @access public
* @param detect_line_endings bool The flag bit
* @return void
*/
public function detect_line_endings($detect_line_endings)
{
$this->_set_detect_line_endings($detect_line_endings);
return $this;
}
/**
* Gets the "detect_line_endings" flag
*
* @access private
* @return bool
*/
private function _get_detect_line_endings()
{
return $this->detect_line_endings;
}
/**
* Sets the initial line from which start to parse the file
*
* @access private
* @param initial_line int Start parse from this line
* @return void
*/
private function _set_initial_line($initial_line)
{
return $this->initial_line = $initial_line;
}
/**
* Sets the initial line from which start to parse the file
*
* @access public
* @param initial_line int Start parse from this line
* @return void
*/
public function initial_line($initial_line)
{
$this->_set_initial_line($initial_line);
return $this;
}
/**
* Gets the initial line from which start to parse the file
*
* @access private
* @return int
*/
private function _get_initial_line()
{
return $this->initial_line;
}
/**
* Sets the values delimiter
*
* @access private
* @param initial_line string The values delimiter (eg. "," or ";")
* @return void
*/
private function _set_delimiter($delimiter)
{
$this->delimiter = $delimiter;
}
/**
* Sets the values delimiter
*
* @access public
* @param initial_line string The values delimiter (eg. "," or ";")
* @return void
*/
public function delimiter($delimiter)
{
$this->_set_delimiter($delimiter);
return $this;
}
/**
* Gets the values delimiter
*
* @access private
* @return string
*/
private function _get_delimiter()
{
return $this->delimiter;
}
/**
* Sets the filepath of a given CSV file
*
* @access private
* @param filepath string Location of the CSV file
* @return void
*/
private function _set_filepath($filepath)
{
$this->filepath = $filepath;
}
/**
* Sets the filepath of a given CSV file
*
* @access public
* @param filepath string Location of the CSV file
* @return void
*/
public function filepath($filepath)
{
$this->_set_filepath($filepath);
return $this;
}
/**
* Gets the filepath of a given CSV file
*
* @access private
* @return string
*/
private function _get_filepath()
{
return $this->filepath;
}
/**
* Sets the alternate column headers that will be used when creating the array
*
* @access private
* @param column_headers array Alternate column_headers that will be used instead of first line of CSV
* @return void
*/
private function _set_column_headers($column_headers='')
{
if(is_array($column_headers) && !empty($column_headers))
{
$this->column_headers = $column_headers;
}
}
/**
* Sets the alternate column headers that will be used when creating the array
*
* @access public
* @param column_headers array Alternate column_headers that will be used instead of first line of CSV
* @return void
*/
public function column_headers($column_headers)
{
$this->_set_column_headers($column_headers);
return $this;
}
/**
* Gets the alternate column headers that will be used when creating the array
*
* @access private
* @return mixed
*/
private function _get_column_headers()
{
return $this->column_headers;
}
/**
* Opens the CSV file for parsing
*
* @access private
* @return void
*/
private function _get_handle()
{
$this->handle = fopen($this->filepath, "r");
}
/**
* Closes the CSV file when complete
*
* @access private
* @return array
*/
private function _close_csv()
{
fclose($this->handle);
}
}