Changing EOL style to LF

1 files changed, 497 insertions, 497 deletions

diff --git a/system/helpers/compatibility_helper.php b/system/helpers/compatibility_helper.php
index 996a6d7ea..3b37cea02 100644
--- a/system/helpers/compatibility_helper.php
+++ b/system/helpers/compatibility_helper.php
@@ -1,498 +1,498 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

-/**

- * CodeIgniter

- *

- * An open source application development framework for PHP 4.3.2 or newer

- *

- * @package		CodeIgniter

- * @author		ExpressionEngine Dev Team

- * @copyright	Copyright (c) 2008, EllisLab, Inc.

- * @license		http://codeigniter.com/user_guide/license.html

- * @link		http://codeigniter.com

- * @since		Version 1.0

- * @filesource

- */

-

-// ------------------------------------------------------------------------

-

-/**

- * CodeIgniter Compatibility Helpers

- *

- * This helper contains some functions based on the PEAR PHP_Compat library

- * http://pear.php.net/package/PHP_Compat

- * 

- * The PEAR compat library is a little bloated and the code doesn't harmonize

- * well with CodeIgniter, so those functions have been refactored.

- * We cheat a little and use CI's _exception_handler() to output our own PHP errors

- * so that the behavior fully mimicks the PHP 5 counterparts.  -- Derek Jones

- * 

- * @package		CodeIgniter

- * @subpackage	Helpers

- * @category	Helpers

- * @author		ExpressionEngine Dev Team

- * @link		http://codeigniter.com/user_guide/helpers/compatibility_helper.html

- */

-

-// ------------------------------------------------------------------------

-

-if ( ! defined('PHP_EOL'))

-{

-	define('PHP_EOL', (DIRECTORY_SEPARATOR == '/') ? "\n" : "\r\n");

-} 

-

-// ------------------------------------------------------------------------

-

-/**

- * file_put_contents()

- *

- * Writes a string to a file

- * http://us.php.net/manual/en/function.file_put_contents.php

- * argument 4, $context, not supported

- *

- * @access	public

- * @param	string		file name

- * @param	mixed		data to be written

- * @param	int			flags

- * @return	int			length of written string

- */

-if ( ! function_exists('file_put_contents'))

-{

-	function file_put_contents($filename, $data, $flags = NULL)

-	{

-		if (is_scalar($data))

-		{

-			settype($data, 'STRING');

-		}

-

-		if ( ! is_string($data) && ! is_array($data) && ! is_resource($data))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'file_put_contents(): the 2nd parameter should be either a string or an array', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-

-		// read stream if given a stream resource

-		if (is_resource($data))

-		{

-			if (get_resource_type($data) !== 'stream')

-			{

-				$backtrace = debug_backtrace();

-				_exception_handler(E_USER_WARNING, 'file_put_contents(): supplied resource is not a valid stream resource', $backtrace[0]['file'], $backtrace[0]['line']);

-				return FALSE;

-			}

-

-			$text = '';

-			

-			while ( ! feof($data))

-			{

-				$text .= fread($data, 4096);

-			}

-			

-			$data = $text;

-			unset($text);

-		}

-	

-		// strings only please!

-		if (is_array($data))

-		{

-			$data = implode('', $data);

-		}

-

-		// Set the appropriate mode

-		if (($flags & 8) > 0) // 8 = FILE_APPEND flag

-		{

-			$mode = FOPEN_WRITE_CREATE;

-		}

-		else

-		{

-			$mode = FOPEN_WRITE_CREATE_DESTRUCTIVE;

-		}

-	

-		// Check if we're using the include path

-		if (($flags & 1) > 0) // 1 = FILE_USE_INCLUDE_PATH flag

-		{

-			$use_include_path = TRUE;

-		}

-		else

-		{

-			$use_include_path = FALSE;

-		}

-	

-		$fp = @fopen($filename, $mode, $use_include_path);

-	

-		if ($fp === FALSE)

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to open stream', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		if (($flags & LOCK_EX) > 0)

-		{

-			if ( ! flock($fp, LOCK_EX))

-			{

-				$backtrace = debug_backtrace();

-				_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') unable to acquire an exclusive lock on file', $backtrace[0]['file'], $backtrace[0]['line']);

-				return FALSE;

-			}

-		}

-		

-		// write it

-		if (($written = @fwrite($fp, $data)) === FALSE)

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to write to '.htmlentities($filename), $backtrace[0]['file'], $backtrace[0]['line']);

-		}

-	

-		// Close the handle

-		@fclose($fp);

-	

-		// Return length

-		return $written;

-	}

-}

-

-// ------------------------------------------------------------------------

-

-/**

- * fputcsv()

- *

- * Format line as CSV and write to file pointer

- * http://us.php.net/manual/en/function.fputcsv.php

- *

- * @access	public

- * @param	resource	file pointer

- * @param	array		data to be written

- * @param	string		delimiter

- * @param	string		enclosure

- * @return	int			length of written string

- */

-if ( ! function_exists('fputcsv'))

-{

-	function fputcsv($handle, $fields, $delimiter = ',', $enclosure = '"')

-	{

-		// Checking for a handle resource

-		if ( ! is_resource($handle))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.gettype($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		// OK, it is a resource, but is it a stream?

-		if (get_resource_type($handle) !== 'stream')

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.get_resource_type($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		// Checking for an array of fields

-		if ( ! is_array($fields))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 2 to be array, '.gettype($fields).' given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		// validate delimiter

-		if (strlen($delimiter) > 1)

-		{

-			$delimiter = substr($delimiter, 0, 1);

-			$backtrace = debug_backtrace();

-			_exception_handler(E_NOTICE, 'fputcsv() delimiter must be one character long, "'.htmlentities($delimiter).'" used', $backtrace[0]['file'], $backtrace[0]['line']);

-		}

-	

-		// validate enclosure

-		if (strlen($enclosure) > 1)

-		{

-			$enclosure = substr($enclosure, 0, 1);

-			$backtrace = debug_backtrace();

-			_exception_handler(E_NOTICE, 'fputcsv() enclosure must be one character long, "'.htmlentities($enclosure).'" used', $backtrace[0]['file'], $backtrace[0]['line']);

-

-		}

-	

-		$out = '';

-	

-		foreach ($fields as $cell)

-		{

-			$cell = str_replace($enclosure, $enclosure.$enclosure, $cell);

-

-			if (strpos($cell, $delimiter) !== FALSE OR strpos($cell, $enclosure) !== FALSE OR strpos($cell, "\n") !== FALSE)

-			{

-				$out .= $enclosure.$cell.$enclosure.$delimiter;

-			}

-			else

-			{

-				$out .= $cell.$delimiter;

-			}

-		}

-	

-		$length = @fwrite($handle, substr($out, 0, -1)."\n");

-	

-		return $length;

-	}

-}

-

-// ------------------------------------------------------------------------

-

-/**

- * stripos()

- *

- * Find position of first occurrence of a case-insensitive string

- * http://us.php.net/manual/en/function.stripos.php

- *

- * @access	public

- * @param	string		haystack

- * @param	string		needle

- * @param	int			offset

- * @return	int			numeric position of the first occurrence of needle in the haystack

- */

-if ( ! function_exists('stripos'))

-{

-	function stripos($haystack, $needle, $offset = NULL)

-	{

-		// Cast non string scalar values

-		if (is_scalar($haystack))

-		{

-			settype($haystack, 'STRING');

-		}

-	

-		if ( ! is_string($haystack))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 1 to be string, '.gettype($haystack).' given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		if ( ! is_scalar($needle))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'stripos() needle is not a string or an integer in '.$backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		if (is_float($offset))

-		{

-			$offset = (int)$offset;

-		}

-	

-		if ( ! is_int($offset) && ! is_bool($offset) && ! is_null($offset))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 3 to be long, '.gettype($offset).' given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return NULL;

-		}

-	

-		return strpos(strtolower($haystack), strtolower($needle), $offset);

-	}

-}

-

-// ------------------------------------------------------------------------

-

-/**

- * str_ireplace()

- *

- * Find position of first occurrence of a case-insensitive string

- * http://us.php.net/manual/en/function.str-ireplace.php

- * (parameter 4, $count, is not supported as to do so in PHP 4 would make

- * it a required parameter)

- *

- * @access	public

- * @param	mixed		search

- * @param	mixed		replace

- * @param	mixed		subject

- * @return	int			numeric position of the first occurrence of needle in the haystack

- */

-if ( ! function_exists('str_ireplace'))

-{

-	function str_ireplace($search, $replace, $subject)

-	{

-		// Nothing to do here

-		if ($search === NULL OR $subject === NULL)

-		{

-			return $subject;

-		}

-	

-		// Crazy arguments

-		if (is_scalar($search) && is_array($replace))

-		{

-			$backtrace = debug_backtrace();

-

-			if (is_object($replace))

-			{

-				show_error('Object of class '.get_class($replace).' could not be converted to string in '.$backtrace[0]['file'].' on line '.$backtrace[0]['line']);

-			}

-			else

-			{

-				_exception_handler(E_USER_NOTICE, 'Array to string conversion in '.$backtrace[0]['file'], $backtrace[0]['line']);

-			}

-		}

-	

-		// Searching for an array

-		if (is_array($search))

-		{

-			// Replacing with an array

-			if (is_array($replace))

-			{

-				$search = array_values($search);

-				$replace = array_values($replace);

-

-				if (count($search) >= count($replace))

-				{

-					$replace = array_pad($replace, count($search), '');

-				}

-				else

-				{

-					$replace = array_slice($replace, 0, count($search));

-				}

-			}

-			else

-			{

-				// Replacing with a string all positions

-				$replace = array_fill(0, count($search), $replace);

-			}

-		}

-		else

-		{

-			//Searching for a string and replacing with a string.

-			$search  = array((string)$search);

-			$replace = array((string)$replace);

-		}

-		

-		// Prepare the search array

-		foreach ($search as $search_key => $search_value)

-		{

-			$search[$search_key] = '/'.preg_quote($search_value, '/').'/i';

-		}

-		

-		// Prepare the replace array (escape backreferences)

-		foreach ($replace as $k => $v)

-		{

-			$replace[$k] = str_replace(array(chr(92), '$'), array(chr(92).chr(92), '\$'), $v);

-		}

-	

-		// do the replacement

-		$result = preg_replace($search, $replace, (array)$subject);

-	

-		// Check if subject was initially a string and return it as a string

-		if ( ! is_array($subject))

-		{

-			return current($result);

-		}

-	

-		// Otherwise, just return the array

-		return $result;

-	}

-}

-

-// ------------------------------------------------------------------------

-

-/**

- * http_build_query()

- *

- * Generate URL-encoded query string

- * http://us.php.net/manual/en/function.http-build-query.php

- *

- * @access	public

- * @param	array		form data

- * @param	string		numeric prefix

- * @param	string		argument separator

- * @return	string		URL-encoded string

- */

-if ( ! function_exists('http_build_query'))

-{

-	function http_build_query($formdata, $numeric_prefix = NULL, $separator = NULL)

-	{

-		// Check the data

-		if ( ! is_array($formdata) && ! is_object($formdata))

-		{

-			$backtrace = debug_backtrace();

-			_exception_handler(E_USER_WARNING, 'http_build_query() Parameter 1 expected to be Array or Object. Incorrect value given', $backtrace[0]['file'], $backtrace[0]['line']);

-			return FALSE;

-		}

-	

-		// Cast it as array

-		if (is_object($formdata))

-		{

-			$formdata = get_object_vars($formdata);

-		}

-	

-		// If the array is empty, return NULL

-		if (empty($formdata))

-		{

-			return NULL;

-		}

-	

-		// Argument separator

-		if ($separator === NULL)

-		{

-			$separator = ini_get('arg_separator.output');

-

-			if (strlen($separator) == 0)

-			{

-				$separator = '&';

-			}

-		}

-	

-		// Start building the query

-		$tmp = array();

-

-		foreach ($formdata as $key => $val)

-		{

-			if ($val === NULL)

-			{

-				continue;

-			}

-	

-			if (is_integer($key) && $numeric_prefix != NULL)

-			{

-				$key = $numeric_prefix.$key;

-			}

-	

-			if (is_resource($val))

-			{

-				return NULL;

-			}

-			

-			// hand it off to a recursive parser

-			$tmp[] = _http_build_query_helper($key, $val, $separator);

-		}

-	

-		return implode($separator, $tmp);

-	}

-	

-	

-	// Helper helper.  Remind anyone of college?

-	// Required to handle recursion in nested arrays.

-	// 

-	// You could shave fractions of fractions of a second by moving where

-	// the urlencoding takes place, but it's much less intuitive, and if

-	// your application has 10,000 form fields, well, you have other problems ;)

-	function _http_build_query_helper($key, $val, $separator = '&')

-	{	

-		if (is_scalar($val))

-		{

-			return urlencode($key).'='.urlencode($val);			

-		}

-		else

-		{

-			// arrays please

-			if (is_object($val))

-			{

-				$val = get_object_vars($val);

-			}

-			

-			foreach ($val as $k => $v)

-			{

-				$tmp[] = _http_build_query_helper($key.'['.$k.']', $v, $separator);

-			}

-		}

-			

-		return implode($separator, $tmp);

-	}

-}

-

-

-/* End of file compatibility_helper.php */

+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Compatibility Helpers
+ *
+ * This helper contains some functions based on the PEAR PHP_Compat library
+ * http://pear.php.net/package/PHP_Compat
+ * 
+ * The PEAR compat library is a little bloated and the code doesn't harmonize
+ * well with CodeIgniter, so those functions have been refactored.
+ * We cheat a little and use CI's _exception_handler() to output our own PHP errors
+ * so that the behavior fully mimicks the PHP 5 counterparts.  -- Derek Jones
+ * 
+ * @package		CodeIgniter
+ * @subpackage	Helpers
+ * @category	Helpers
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/helpers/compatibility_helper.html
+ */
+
+// ------------------------------------------------------------------------
+
+if ( ! defined('PHP_EOL'))
+{
+	define('PHP_EOL', (DIRECTORY_SEPARATOR == '/') ? "\n" : "\r\n");
+} 
+
+// ------------------------------------------------------------------------
+
+/**
+ * file_put_contents()
+ *
+ * Writes a string to a file
+ * http://us.php.net/manual/en/function.file_put_contents.php
+ * argument 4, $context, not supported
+ *
+ * @access	public
+ * @param	string		file name
+ * @param	mixed		data to be written
+ * @param	int			flags
+ * @return	int			length of written string
+ */
+if ( ! function_exists('file_put_contents'))
+{
+	function file_put_contents($filename, $data, $flags = NULL)
+	{
+		if (is_scalar($data))
+		{
+			settype($data, 'STRING');
+		}
+
+		if ( ! is_string($data) && ! is_array($data) && ! is_resource($data))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'file_put_contents(): the 2nd parameter should be either a string or an array', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+
+		// read stream if given a stream resource
+		if (is_resource($data))
+		{
+			if (get_resource_type($data) !== 'stream')
+			{
+				$backtrace = debug_backtrace();
+				_exception_handler(E_USER_WARNING, 'file_put_contents(): supplied resource is not a valid stream resource', $backtrace[0]['file'], $backtrace[0]['line']);
+				return FALSE;
+			}
+
+			$text = '';
+			
+			while ( ! feof($data))
+			{
+				$text .= fread($data, 4096);
+			}
+			
+			$data = $text;
+			unset($text);
+		}
+	
+		// strings only please!
+		if (is_array($data))
+		{
+			$data = implode('', $data);
+		}
+
+		// Set the appropriate mode
+		if (($flags & 8) > 0) // 8 = FILE_APPEND flag
+		{
+			$mode = FOPEN_WRITE_CREATE;
+		}
+		else
+		{
+			$mode = FOPEN_WRITE_CREATE_DESTRUCTIVE;
+		}
+	
+		// Check if we're using the include path
+		if (($flags & 1) > 0) // 1 = FILE_USE_INCLUDE_PATH flag
+		{
+			$use_include_path = TRUE;
+		}
+		else
+		{
+			$use_include_path = FALSE;
+		}
+	
+		$fp = @fopen($filename, $mode, $use_include_path);
+	
+		if ($fp === FALSE)
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to open stream', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		if (($flags & LOCK_EX) > 0)
+		{
+			if ( ! flock($fp, LOCK_EX))
+			{
+				$backtrace = debug_backtrace();
+				_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') unable to acquire an exclusive lock on file', $backtrace[0]['file'], $backtrace[0]['line']);
+				return FALSE;
+			}
+		}
+		
+		// write it
+		if (($written = @fwrite($fp, $data)) === FALSE)
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to write to '.htmlentities($filename), $backtrace[0]['file'], $backtrace[0]['line']);
+		}
+	
+		// Close the handle
+		@fclose($fp);
+	
+		// Return length
+		return $written;
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * fputcsv()
+ *
+ * Format line as CSV and write to file pointer
+ * http://us.php.net/manual/en/function.fputcsv.php
+ *
+ * @access	public
+ * @param	resource	file pointer
+ * @param	array		data to be written
+ * @param	string		delimiter
+ * @param	string		enclosure
+ * @return	int			length of written string
+ */
+if ( ! function_exists('fputcsv'))
+{
+	function fputcsv($handle, $fields, $delimiter = ',', $enclosure = '"')
+	{
+		// Checking for a handle resource
+		if ( ! is_resource($handle))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.gettype($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		// OK, it is a resource, but is it a stream?
+		if (get_resource_type($handle) !== 'stream')
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.get_resource_type($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		// Checking for an array of fields
+		if ( ! is_array($fields))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 2 to be array, '.gettype($fields).' given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		// validate delimiter
+		if (strlen($delimiter) > 1)
+		{
+			$delimiter = substr($delimiter, 0, 1);
+			$backtrace = debug_backtrace();
+			_exception_handler(E_NOTICE, 'fputcsv() delimiter must be one character long, "'.htmlentities($delimiter).'" used', $backtrace[0]['file'], $backtrace[0]['line']);
+		}
+	
+		// validate enclosure
+		if (strlen($enclosure) > 1)
+		{
+			$enclosure = substr($enclosure, 0, 1);
+			$backtrace = debug_backtrace();
+			_exception_handler(E_NOTICE, 'fputcsv() enclosure must be one character long, "'.htmlentities($enclosure).'" used', $backtrace[0]['file'], $backtrace[0]['line']);
+
+		}
+	
+		$out = '';
+	
+		foreach ($fields as $cell)
+		{
+			$cell = str_replace($enclosure, $enclosure.$enclosure, $cell);
+
+			if (strpos($cell, $delimiter) !== FALSE OR strpos($cell, $enclosure) !== FALSE OR strpos($cell, "\n") !== FALSE)
+			{
+				$out .= $enclosure.$cell.$enclosure.$delimiter;
+			}
+			else
+			{
+				$out .= $cell.$delimiter;
+			}
+		}
+	
+		$length = @fwrite($handle, substr($out, 0, -1)."\n");
+	
+		return $length;
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * stripos()
+ *
+ * Find position of first occurrence of a case-insensitive string
+ * http://us.php.net/manual/en/function.stripos.php
+ *
+ * @access	public
+ * @param	string		haystack
+ * @param	string		needle
+ * @param	int			offset
+ * @return	int			numeric position of the first occurrence of needle in the haystack
+ */
+if ( ! function_exists('stripos'))
+{
+	function stripos($haystack, $needle, $offset = NULL)
+	{
+		// Cast non string scalar values
+		if (is_scalar($haystack))
+		{
+			settype($haystack, 'STRING');
+		}
+	
+		if ( ! is_string($haystack))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 1 to be string, '.gettype($haystack).' given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		if ( ! is_scalar($needle))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'stripos() needle is not a string or an integer in '.$backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		if (is_float($offset))
+		{
+			$offset = (int)$offset;
+		}
+	
+		if ( ! is_int($offset) && ! is_bool($offset) && ! is_null($offset))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 3 to be long, '.gettype($offset).' given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return NULL;
+		}
+	
+		return strpos(strtolower($haystack), strtolower($needle), $offset);
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * str_ireplace()
+ *
+ * Find position of first occurrence of a case-insensitive string
+ * http://us.php.net/manual/en/function.str-ireplace.php
+ * (parameter 4, $count, is not supported as to do so in PHP 4 would make
+ * it a required parameter)
+ *
+ * @access	public
+ * @param	mixed		search
+ * @param	mixed		replace
+ * @param	mixed		subject
+ * @return	int			numeric position of the first occurrence of needle in the haystack
+ */
+if ( ! function_exists('str_ireplace'))
+{
+	function str_ireplace($search, $replace, $subject)
+	{
+		// Nothing to do here
+		if ($search === NULL OR $subject === NULL)
+		{
+			return $subject;
+		}
+	
+		// Crazy arguments
+		if (is_scalar($search) && is_array($replace))
+		{
+			$backtrace = debug_backtrace();
+
+			if (is_object($replace))
+			{
+				show_error('Object of class '.get_class($replace).' could not be converted to string in '.$backtrace[0]['file'].' on line '.$backtrace[0]['line']);
+			}
+			else
+			{
+				_exception_handler(E_USER_NOTICE, 'Array to string conversion in '.$backtrace[0]['file'], $backtrace[0]['line']);
+			}
+		}
+	
+		// Searching for an array
+		if (is_array($search))
+		{
+			// Replacing with an array
+			if (is_array($replace))
+			{
+				$search = array_values($search);
+				$replace = array_values($replace);
+
+				if (count($search) >= count($replace))
+				{
+					$replace = array_pad($replace, count($search), '');
+				}
+				else
+				{
+					$replace = array_slice($replace, 0, count($search));
+				}
+			}
+			else
+			{
+				// Replacing with a string all positions
+				$replace = array_fill(0, count($search), $replace);
+			}
+		}
+		else
+		{
+			//Searching for a string and replacing with a string.
+			$search  = array((string)$search);
+			$replace = array((string)$replace);
+		}
+		
+		// Prepare the search array
+		foreach ($search as $search_key => $search_value)
+		{
+			$search[$search_key] = '/'.preg_quote($search_value, '/').'/i';
+		}
+		
+		// Prepare the replace array (escape backreferences)
+		foreach ($replace as $k => $v)
+		{
+			$replace[$k] = str_replace(array(chr(92), '$'), array(chr(92).chr(92), '\$'), $v);
+		}
+	
+		// do the replacement
+		$result = preg_replace($search, $replace, (array)$subject);
+	
+		// Check if subject was initially a string and return it as a string
+		if ( ! is_array($subject))
+		{
+			return current($result);
+		}
+	
+		// Otherwise, just return the array
+		return $result;
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * http_build_query()
+ *
+ * Generate URL-encoded query string
+ * http://us.php.net/manual/en/function.http-build-query.php
+ *
+ * @access	public
+ * @param	array		form data
+ * @param	string		numeric prefix
+ * @param	string		argument separator
+ * @return	string		URL-encoded string
+ */
+if ( ! function_exists('http_build_query'))
+{
+	function http_build_query($formdata, $numeric_prefix = NULL, $separator = NULL)
+	{
+		// Check the data
+		if ( ! is_array($formdata) && ! is_object($formdata))
+		{
+			$backtrace = debug_backtrace();
+			_exception_handler(E_USER_WARNING, 'http_build_query() Parameter 1 expected to be Array or Object. Incorrect value given', $backtrace[0]['file'], $backtrace[0]['line']);
+			return FALSE;
+		}
+	
+		// Cast it as array
+		if (is_object($formdata))
+		{
+			$formdata = get_object_vars($formdata);
+		}
+	
+		// If the array is empty, return NULL
+		if (empty($formdata))
+		{
+			return NULL;
+		}
+	
+		// Argument separator
+		if ($separator === NULL)
+		{
+			$separator = ini_get('arg_separator.output');
+
+			if (strlen($separator) == 0)
+			{
+				$separator = '&';
+			}
+		}
+	
+		// Start building the query
+		$tmp = array();
+
+		foreach ($formdata as $key => $val)
+		{
+			if ($val === NULL)
+			{
+				continue;
+			}
+	
+			if (is_integer($key) && $numeric_prefix != NULL)
+			{
+				$key = $numeric_prefix.$key;
+			}
+	
+			if (is_resource($val))
+			{
+				return NULL;
+			}
+			
+			// hand it off to a recursive parser
+			$tmp[] = _http_build_query_helper($key, $val, $separator);
+		}
+	
+		return implode($separator, $tmp);
+	}
+	
+	
+	// Helper helper.  Remind anyone of college?
+	// Required to handle recursion in nested arrays.
+	// 
+	// You could shave fractions of fractions of a second by moving where
+	// the urlencoding takes place, but it's much less intuitive, and if
+	// your application has 10,000 form fields, well, you have other problems ;)
+	function _http_build_query_helper($key, $val, $separator = '&')
+	{	
+		if (is_scalar($val))
+		{
+			return urlencode($key).'='.urlencode($val);			
+		}
+		else
+		{
+			// arrays please
+			if (is_object($val))
+			{
+				$val = get_object_vars($val);
+			}
+			
+			foreach ($val as $k => $v)
+			{
+				$tmp[] = _http_build_query_helper($key.'['.$k.']', $v, $separator);
+			}
+		}
+			
+		return implode($separator, $tmp);
+	}
+}
+
+
+/* End of file compatibility_helper.php */
 /* Location: ./system/helpers/compatibility_helper.php */
\ No newline at end of file