<?php
/************************************************************************
** Software	: ini_file.class.php
** Purpose	: Reads and writes INI (Configuration) files.
** Author	: Dean Newman of Project07.com
** Licence	: GNU/GPL v2
** About	: This system will need read/write access to the ini file. (CHMOD:777)
************************************************************************/

class ini
{
	/************************************************************************
	** Function	: ini() - Constructor
	** About	: This function currenty does nothing. (Placeholder)
	************************************************************************/
	function ini()
	{
		
	}

	/************************************************************************
	** Function	: read() - File Reader
	** About	: This function will read an ini file in to a php array
	************************************************************************/
	function read($file, $group = false, $var = false)
	{
		// Filled through function and returned
		$output = array();

		// Stores the current group
		$last_head = false;

		// Check readability
		if ( ! is_readable($file) )
		{
			die("Unable to read $file");
		}

		// Read file
		$handle = @file($file);

		for ( $i = 0 ; $i < sizeof ( $handle ) ; $i++ )
		{
			// Set some common variables
			$line = $handle[$i];
			$fchar = substr($line, 0, 1);
			$cmtsrt = array(';', '#');

			// Match groups
			preg_match('#\[(.*?)\]#is', $line, $m);
			if ( $m[1] && !in_array($fchar, $cmtsrt) )
			{
				$last_head = $m[1];
			}
			unset($m);

			// Match variables
			preg_match('#(.*?)=#is', $line, $m);
			if ( $m[1] && !in_array($fchar, $cmtsrt) )
			{
				// Strip comments (; kind)
				if ( $comment = strstr($line, ';') )
				{
					$line = str_replace($comment, '', $line);
				}

				// Strip comments (# kind)
				if ( $comment = strstr($line, '#') )
				{
					$line = str_replace($comment, '', $line);
				}

				// Remove whitespace/var name		
				$line = str_replace($m[1] . '=', '', $line);
				$line = trim(rtrim($line));

				// Add to array
				if ( $group == $last_head || !$group )
				{
					if ( $var == trim(rtrim($m[1])) )
					{
						// Return this var only
						return $line;
					}
					else
					{
						$output[$last_head][ trim(rtrim($m[1])) ] = $line;
					}
				}

			}
		}

		// Return this group only
		if ( $group )
		{
			return $output[$group];
		}

		// Got the data, Return it
		return $output;
	}

	/************************************************************************
	** Function	: write() - File editor
	** About	: This function writes/Updates entries in the ini file
	************************************************************************/
	function write($file, $section, $var, $value)
	{
		if ( empty ( $section ) || empty ( $var ) )
		{
			die("INI->Unable to write to file due to empty section or var (Section: $section -> Var: $var -> Value: $value)");
		}
	
		$contents = $this->read($file);
		$contents[$section][$var] = $value;
		if ( empty ( $value ) )
		{
			unset($contents[$section][$var]);
		}

		$output = ";\n; File created by Afterlife(69)'s INI Class\n; Copyright 2006, Dean Newman - Licenced under GNU/GPL v2\n;\n";

		while ( list ( $key, $array ) = @each ( $contents ) )
		{
			if ( is_array ( $contents[$key] ) )
			{
				$output .= "[$key]\n";
			}
			while ( list ( $var, $value ) = @each ( $array ) )
			{
				$output .= "$var = $value\n";
			}
			$output .= "\n";
		}
		
		$handle = @fopen($file, 'w');
		@fwrite($handle, $output);
		@fclose($handle);
	}
}

/************************************************************************
** Software	: ini_file.class.php
** Purpose	: Reads ini files into an array, can also read single groups or vars
** Author	: Dean Newman of Project07.com
** Licence	: GNU/GPL v2
************************************************************************/
?>