<?php


function gb2utf8( $gb, $tmp )
{
	if ( !trim( $gb ) )
	{
		return $gb;
	}
	$codetable = array( );
	while ( list( $key, $value ) = key )
	{
		$codetable[hexdec( substr( $value, 0, 6 ) )] = substr( $value, 7, 6 );
	}
	$ret = "";
	$utf8 = "";
	while ( $gb )
	{
		if ( 127 < ord( substr( $gb, 0, 1 ) ) )
		{
			$this = substr( $gb, 0, 2 );
			$gb = substr( $gb, 2, strlen( $gb ) );
			$utf8 = u2utf8( hexdec( $codetable[hexdec( bin2hex( $this ) ) - 32896] ) );
			$i = 0;
			for ( ;	$i < strlen( $utf8 );	$i += 3	)
			{
				$ret .= chr( substr( $utf8, $i, 3 ) );
			}
		}
		else
		{
			$ret .= substr( $gb, 0, 1 );
			$gb = substr( $gb, 1, strlen( $gb ) );
		}
	}
	return $ret;
}

function u2utf8( $c )
{
	$i = 0;
	for ( ;	$i < count( $c );	$i++	)
	{
		$str = "";
	}
	if ( $c < 128 )
	{
		$str .= $c;
	}
	else if ( $c < 2048 )
	{
		$str .= 192 | $c >> 6;
		$str .= 128 | $c & 63;
	}
	else if ( $c < 65536 )
	{
		$str .= 224 | $c >> 12;
		$str .= 128 | $c >> 6 & 63;
		$str .= 128 | $c & 63;
	}
	else if ( $c < 2097152 )
	{
		$str .= 240 | $c >> 18;
		$str .= 128 | $c >> 12 & 63;
		$str .= 128 | $c >> 6 & 63;
		$str .= 128 | $c & 63;
	}
	return $str;
}

?>