Current File : /home/giriqfky/public_html/Barga/application/libraries//Format.php
<?php
/**
* Format class
*
* Help convert between various formats such as XML, JSON, CSV, etc.
*
* @author Phil Sturgeon
* @license http://philsturgeon.co.uk/code/dbad-license
*/
class Format {
// Array to convert
protected $_data = array();
// View filename
protected $_from_type = null;
/**
* Returns an instance of the Format object.
*
* echo $this->format->factory(array('foo' => 'bar'))->to_xml();
*
* @param mixed general date to be converted
* @param string data format the file was provided in
* @return Factory
*/
public function factory($data, $from_type = null)
{
// Stupid stuff to emulate the "new static()" stuff in this libraries PHP 5.3 equivalent
$class = __CLASS__;
return new $class($data, $from_type);
}
/**
* Do not use this directly, call factory()
*/
public function __construct($data = null, $from_type = null)
{
get_instance()->load->helper('inflector');
// If the provided data is already formatted we should probably convert it to an array
if ($from_type !== null)
{
if (method_exists($this, '_from_' . $from_type))
{
$data = call_user_func(array($this, '_from_' . $from_type), $data);
}
else
{
throw new Exception('Format class does not support conversion from "' . $from_type . '".');
}
}
$this->_data = $data;
}
// FORMATING OUTPUT ---------------------------------------------------------
public function to_array($data = null)
{
// If not just null, but nothing is provided
if ($data === null and ! func_num_args())
{
$data = $this->_data;
}
$array = array();
foreach ((array) $data as $key => $value)
{
if (is_object($value) or is_array($value))
{
$array[$key] = $this->to_array($value);
}
else
{
$array[$key] = $value;
}
}
return $array;
}
// Format XML for output
public function to_xml($data = null, $structure = null, $basenode = 'xml')
{
if ($data === null and ! func_num_args())
{
$data = $this->_data;
}
// turn off compatibility mode as simple xml throws a wobbly if you don't.
if (ini_get('zend.ze1_compatibility_mode') == 1)
{
ini_set('zend.ze1_compatibility_mode', 0);
}
if ($structure === null)
{
$structure = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?><$basenode />");
}
// Force it to be something useful
if ( ! is_array($data) AND ! is_object($data))
{
$data = (array) $data;
}
foreach ($data as $key => $value)
{
//change false/true to 0/1
if(is_bool($value))
{
$value = (int) $value;
}
// no numeric keys in our xml please!
if (is_numeric($key))
{
// make string key...
$key = (singular($basenode) != $basenode) ? singular($basenode) : 'item';
}
// replace anything not alpha numeric
$key = preg_replace('/[^a-z_\-0-9]/i', '', $key);
if ($key === '_attributes' && (is_array($value) || is_object($value)))
{
$attributes = $value;
if (is_object($attributes)) $attributes = get_object_vars($attributes);
foreach ($attributes as $attributeName => $attributeValue)
{
$structure->addAttribute($attributeName, $attributeValue);
}
}
// if there is another array found recursively call this function
else if (is_array($value) || is_object($value))
{
$node = $structure->addChild($key);
// recursive call.
$this->to_xml($value, $node, $key);
}
else
{
// add single node.
$value = htmlspecialchars(html_entity_decode($value, ENT_QUOTES, 'UTF-8'), ENT_QUOTES, "UTF-8");
$structure->addChild($key, $value);
}
}
return $structure->asXML();
}
// Format HTML for output
public function to_html()
{
$data = (array)$this->_data;
// Multi-dimensional array
if (isset($data[0]) && is_array($data[0]))
{
$headings = array_keys($data[0]);
}
// Single array
else
{
$headings = array_keys($data);
$data = array($data);
}
$ci = get_instance();
$ci->load->library('table');
$ci->table->set_heading($headings);
foreach ($data as &$row)
{
$ci->table->add_row($row);
}
return $ci->table->generate();
}
// Format CSV for output
public function to_csv()
{
$data = (array)$this->_data;
// Multi-dimensional array
if (isset($data[0]) && is_array($data[0]))
{
$headings = array_keys($data[0]);
}
// Single array
else
{
$headings = array_keys($data);
$data = array($data);
}
$output = '"'.implode('","', $headings).'"'.PHP_EOL;
foreach ($data as &$row)
{
if (is_array($row)) {
throw new Exception('Format class does not support multi-dimensional arrays');
} else {
$row = str_replace('"', '""', $row); // Escape dbl quotes per RFC 4180
$output .= '"'.implode('","', $row).'"'.PHP_EOL;
}
}
return $output;
}
// Encode as JSON
public function to_json()
{
$callback = isset($_GET['callback']) ? $_GET['callback'] : '';
if ($callback === '')
{
return json_encode($this->_data);
/* Had to take out this code, it doesn't work on Objects.
$str = $this->_data;
array_walk_recursive($str, function(&$item, $key)
{
if(!mb_detect_encoding($item, 'utf-8', true))
{
$item = utf8_encode($item);
}
});
return json_encode($str);
*/
}
// we only honour jsonp callback which are valid javascript identifiers
else if (preg_match('/^[a-z_\$][a-z0-9\$_]*(\.[a-z_\$][a-z0-9\$_]*)*$/i', $callback))
{
// this is a jsonp request, the content-type must be updated to be text/javascript
header("Content-Type: application/javascript");
return $callback . "(" . json_encode($this->_data) . ");";
}
else
{
// we have an invalid jsonp callback identifier, we'll return plain json with a warning field
$this->_data['warning'] = "invalid jsonp callback provided: ".$callback;
return json_encode($this->_data);
}
}
// Encode as Serialized array
public function to_serialized()
{
return serialize($this->_data);
}
// Output as a string representing the PHP structure
public function to_php()
{
return var_export($this->_data, TRUE);
}
// Format XML for output
protected function _from_xml($string)
{
return $string ? (array) simplexml_load_string($string, 'SimpleXMLElement', LIBXML_NOCDATA) : array();
}
// Format CSV for output
// This function is DODGY! Not perfect CSV support but works with my REST_Controller
protected function _from_csv($string)
{
$data = array();
// Splits
$rows = explode("\n", trim($string));
$headings = explode(',', array_shift($rows));
foreach ($rows as $row)
{
// The substr removes " from start and end
$data_fields = explode('","', trim(substr($row, 1, -1)));
if (count($data_fields) == count($headings))
{
$data[] = array_combine($headings, $data_fields);
}
}
return $data;
}
// Encode as JSON
private function _from_json($string)
{
return json_decode(trim($string));
}
// Encode as Serialized array
private function _from_serialize($string)
{
return unserialize(trim($string));
}
}
/* End of file format.php */
