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<?php
if (!defined('MSD_VERSION')) die('No direct access.');

//SQL-Library laden
include ( './inc/sqllib.php' );

if (!isset($config['sql_limit'])) $config['sql_limit']=30;
if (!isset($config['bb_width'])) $config['bb_width']=300;
if (!isset($config['bb_textcolor'])) $config['bb_textcolor']="#990033";

function ReadSQL()
{
	global $SQL_ARRAY,$config;
	$sf=$config['paths']['config'] . 'sql_statements';
	if (!is_file($sf))
	{
		$fp=fopen($sf,"w+");
		fclose($fp);
		@chmod($sf,0777);
	}
	if ((!is_array($SQL_ARRAY) || count($SQL_ARRAY) == 0) && filesize($sf) > 0)
	{
		$SQL_ARRAY=file($sf);
	}
}

function WriteSQL()
{
	global $SQL_ARRAY,$config;
	$sf=$config['paths']['config'] . 'sql_statements';
	$str="";
	for ($i=0; $i < count($SQL_ARRAY); $i++)
	{
		$str.=$SQL_ARRAY[$i];
		if (substr($str,-1) != "\n" && $i != ( count($SQL_ARRAY) - 1 )) $str.="\n";

	}
	if ($config['magic_quotes_gpc']) $str=stripslashes($str);
	$fp=fopen($sf,"wb");
	fwrite($fp,$str);
	fclose($fp);

}

function SQL_Name($index)
{
	global $SQL_ARRAY;
	$s=explode('|',$SQL_ARRAY[$index]);
	return $s[0];
}

function SQL_String($index)
{
	global $SQL_ARRAY;
	if (isset($SQL_ARRAY[$index]) && !empty($SQL_ARRAY[$index]))
	{
		$s=explode('|',$SQL_ARRAY[$index],2);
		return ( isset($s[1]) ) ? $s[1] : '';
	}
}

function SQL_ComboBox()
{
	global $SQL_ARRAY,$tablename,$nl;
	$s='';
	if (is_array($SQL_ARRAY) && count($SQL_ARRAY) > 0)
	{
		$s=$nl . $nl . '<select class="SQLCombo" name="sqlcombo" onchange="this.form.sqltextarea.value=this.options[this.selectedIndex].value;">' . $nl;
		$s.='<option value="" selected>---</option>' . $nl;
		for ($i=0; $i < count($SQL_ARRAY); $i++)
		{
			$s.='<option value="' . htmlspecialchars(stripslashes(SQL_String($i))) . '">' . SQL_Name($i) . '</option>' . $nl;
		}
		$s.='</select>' . $nl . $nl;
	}
	return $s;
}

function Table_ComboBox()
{
	global $db,$config,$lang,$nl;
	$tabellen=mysqli_query($config['dbconnection'], 'SHOW TABLES FROM `' . $db . '`');
	$num_tables = 0;
	if (is_resource($tabellen)) {
    	$num_tables=mysqli_num_rows($tabellen);
	}
	$s=$nl . $nl . '<select class="SQLCombo" name="tablecombo" onchange="this.form.sqltextarea.value=this.options[this.selectedIndex].value;this.form.execsql.click();">' . $nl . '<option value="" selected> ---  </option>' . $nl;
	for ($i=0; $i < $num_tables; $i++)
	{
		$t=mysqli_fetch_row($tabellen);
		$s.='<option value="SELECT * FROM `' . $db . '`.`' . $t[0] . '`">' . $lang['L_TABLE'] . ' `' . $t[0] . '`</option>' . $nl;
	}
	$s.='</select>' . $nl . $nl;
	return $s;
}

function TableComboBox($default='')
{
	global $db,$config,$lang,$nl;
	$tabellen=mysqli_query($config['dbconnection'], "SHOW TABLES FROM `$db`");
	$num_tables=mysqli_num_rows($tabellen);
	$s='<option value="" ' . ( ( $default == '' ) ? 'selected' : '' ) . '>                 </option>' . $nl;
	for ($i=0; $i < $num_tables; $i++)
	{
		$t=((mysqli_data_seek($tabellen, $i) && (($___mysqli_tmp = mysqli_fetch_row($tabellen)) !== NULL)) ? array_shift($___mysqli_tmp) : false);
		$s.='<option value="`' . $t . '`"' . ( ( $default == '`' . $t . '`' ) ? 'selected' : '' ) . '>`' . $t . '`</option>' . $nl;
	}
	return $s;
}

function DB_Exists($db)
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$erg=false;
	$dbs=(($___mysqli_tmp = mysqli_query($config['dbconnection'], "SHOW DATABASES")) ? $___mysqli_tmp : false);
	while ($row=mysqli_fetch_object($dbs))
	{
		if (strtolower($row->Database) == strtolower($db))
		{
			$erg=true;
			break;
		}
	}
	return $erg;
}

function Table_Exists($db, $table)
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$sqlt="SHOW TABLES FROM `$db`";
	$res=MSD_query($sqlt);
	if ($res)
	{
		$tables=array();
		WHILE ($row=mysqli_fetch_row($res))
		{
			$tables[]=$row[0];
		}
		if (in_array($table,$tables)) return true;
	}
	return false;
}

function DB_Empty($dbn)
{
	$r="DROP DATABASE `$dbn`;\nCREATE DATABASE `$dbn`;";
	return MSD_DoSQL($r);

}

function sqlReturnsRecords($sql)
{
	global $mysql_SQLhasRecords;
	$s=explode(' ',$sql);
	return in_array(strtoupper($s[0]),$mysql_SQLhasRecords) ? 1 : 0;
}

function getCountSQLStatements($sql)
{
	$z=0;
	$l=strlen($sql);
	$inQuotes=false;
	for ($i=0; $i < $l; $i++)
	{
		if ($sql[$i] == "'" || $sql[$i] == '"') $inQuotes=!$inQuotes;
		if (( $sql[$i] == ';' && $inQuotes == false ) || $i == $l - 1) $z++;
	}
	return $z;
}

function splitSQLStatements2Array($sql)
{
	$z=0;
	$sqlArr=array();
	$tmp='';
	$sql=str_replace("\n",'',$sql);
	$l=strlen($sql);
	$inQuotes=false;
	for ($i=0; $i < $l; $i++)
	{
		$tmp.=$sql[$i];
		if ($sql[$i] == "'" || $sql[$i] == '"') $inQuotes=!$inQuotes;
		if ($sql[$i] == ';' && $inQuotes == false)
		{
			$z++;
			$sqlArr[]=$tmp;
			$tmp='';
		}
	}
	if (trim($tmp) != '') $sqlArr[]=$tmp;
	return $sqlArr;
}

function DB_Copy($source, $destination, $drop_source=0, $insert_data=1)
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$SQL_Array=$t="";
    if (!DB_Exists($destination))
    {
        $res = MSD_DoSQL("CREATE DATABASE `$destination`;");
        if (!$res)
        {
            return false;
        }
    }
	$SQL_Array.="USE `$destination` ;\n";
	$tabellen=mysqli_query($config['dbconnection'], "SHOW TABLES FROM `$source`");
	$num_tables=mysqli_num_rows($tabellen);
	for ($i=0; $i < $num_tables; $i++)
	{
		$table=((mysqli_data_seek($tabellen, $i) && (($___mysqli_tmp = mysqli_fetch_row($tabellen)) !== NULL)) ? array_shift($___mysqli_tmp) : false);
		$sqlt="SHOW CREATE TABLE `$source`.`$table`";
		$res=MSD_query($sqlt);
		if ($res)
        {
            $row=mysqli_fetch_row($res);
            $c=$row[1];
            if (substr($c,-1) == ";") $c=substr($c,0,strlen($c) - 1);
            $SQL_Array.=( $insert_data == 1 ) ? "$c SELECT * FROM `$source`.`$table` ;\n" : "$c ;\n";
        }
        else
        {
            return false;
        }
	}
    mysqli_select_db($GLOBALS["___mysqli_ston"], $destination);
    $res=MSD_DoSQL($SQL_Array);
    if ($drop_source == 1 && $res) MSD_query("DROP DATABASE `$source`;");
    return $res;
}

function Table_Copy($source, $destination, $insert_data, $destinationdb="")
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$SQL_Array=$t="";
	$sqlc="SHOW CREATE TABLE $source";
	$res=MSD_query($sqlc);
	$row=mysqli_fetch_row($res);
	$c=$row[1];
	$a1=strpos($c,"`");
	$a2=strpos($c,"`",$a1 + 1);
	$c=substr($c,0,$a1 + 1) . $destination . substr($c,$a2);
	if (substr($c,-1) == ";") $c=substr($c,0,strlen($c) - 1);
	$SQL_Array.=( $insert_data == 1 ) ? "$c SELECT * FROM $source ;\n" : "$c ;\n";
	//echo "<h5>$SQL_Array</h5>";
	MSD_DoSQL($SQL_Array);

}

function MSD_DoSQL($sqlcommands, $limit="")
{
	global $config,$out,$numrowsabs,$numrows,$num_befehle,$time_used,$sql;

	if (!isset($sql['parser']['sql_commands'])) $sql['parser']['sql_commands']=0;
	if (!isset($sql['parser']['sql_errors'])) $sql['parser']['sql_errors']=0;

	$sql['parser']['time_used']=getmicrotime();
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$out=$sqlcommand='';
	$allSQL=splitSQLStatements2Array($sqlcommands); #explode(';',preg_replace('/\r\n|\n/', '', $sqlcommands));
	$sql_queries=count($allSQL);

	if (!isset($allSQL[$sql_queries - 1])) $sql_queries--;
	if ($sql_queries == 1)
	{
		SQLParser($allSQL[0]);
		$sql['parser']['sql_commands']++;
		$out.=Stringformat(( $sql['parser']['sql_commands'] ),4) . ': ' . $allSQL[0] . "\n";
		$result=MSD_query($allSQL[0]);
	}
	else
	{
	    $result = true;
		for ($i=0; $i < $sql_queries; $i++)
		{
			$allSQL[$i]=trim(rtrim($allSQL[$i]));

			if ($allSQL[$i] != "")
			{
				$sqlcommand.=$allSQL[$i];
				$sqlcommand=SQLParser($sqlcommand);
				if ($sql['parser']['start'] == 0 && $sql['parser']['end'] == 0 && $sqlcommand != '')
				{
					//sql complete
					$sql['parser']['sql_commands']++;
					$out.=Stringformat(( $sql['parser']['sql_commands'] ),4) . ': ' . $sqlcommand . "\n";
					$result=$result && MSD_query($sqlcommand);
					$sqlcommand="";
				}
			}
		}
	}
	$sql['parser']['time_used']=getmicrotime() - $sql['parser']['time_used'];
	return $result;
}

function SQLParser($command, $debug=0)
{
	global $sql;
	$sql['parser']['start']=$sql['parser']['end']=0;
	$sql['parser']['sqlparts']=0;
	if (!isset($sql['parser']['drop'])) $sql['parser']['drop']=0;
	if (!isset($sql['parser']['create'])) $sql['parser']['create']=0;
	if (!isset($sql['parser']['insert'])) $sql['parser']['insert']=0;
	if (!isset($sql['parser']['update'])) $sql['parser']['update']=0;
	if (!isset($sql['parser']['comment'])) $sql['parser']['comment']=0;
	$Backslash=chr(92);
	$s=rtrim(trim(( $command )));

	//Was ist das für eine Anfrage ?
	if (substr($s,0,1) == "#" || substr($s,0,2) == "--")
	{
		$sql['parser']['comment']++;
		$s="";
	}
	elseif (strtoupper(substr($s,0,5)) == "DROP ")
	{
		$sql['parser']['drop']++;
	}
	elseif (strtoupper(substr($s,0,7)) == "CREATE ")
	{
		//Hier nur die Anzahl der Klammern zählen
		$sql['parser']['start']=1;
		$kl1=substr_count($s,"(");
		$kl2=substr_count($s,")");
		if ($kl2 - $kl1 == 0)
		{
			$sql['parser']['start']=0;
			$sql['parser']['create']++;
		}
	}
	elseif (strtoupper(substr($s,0,7)) == "INSERT " || strtoupper(substr($s,0,7)) == "UPDATE ")
	{

		if (strtoupper(substr($s,0,7)) == "INSERT ") $sql['parser']['insert']++;
		else $sql['parser']['update']++;
		$i=strpos(strtoupper($s)," VALUES") + 7;
		$st=substr($s,$i);
		$i=strpos($st,"(") + 1;
		$st=substr($st,$i);
		$st=substr($st,0,strlen($st) - 2);

		$tb=explode(",",$st);
		for ($i=0; $i < count($tb); $i++)
		{
			$first=$B_Esc=$B_Ticks=$B_Dashes=0;
			$v=trim($tb[$i]);
			//Ticks + Dashes zählen
			for ($cpos=2; $cpos <= strlen($v); $cpos++)
			{
				if (substr($v,( -1 * $cpos ),1) == "'")
				{
					$B_Ticks++;
				}
				else
				{
					break;
				}
			}
			for ($cpos=2; $cpos <= strlen($v); $cpos++)
			{
				if (substr($v,( -1 * $cpos ),1) == '"')
				{
					$B_Dashes++;
				}
				else
				{
					break;
				}
			}

			//Backslashes zählen
			for ($cpos=2 + $B_Ticks; $cpos <= strlen($v); $cpos++)
			{
				if (substr($v,( -1 * $cpos ),1) == "\\")
				{
					$B_Esc++;
				}
				else
				{
					break;
				}
			}

			if ($v == "NULL" && $sql['parser']['start'] == 0)
			{
				$sql['parser']['start']=1;
				$sql['parser']['end']=1;
			}
			if ($sql['parser']['start'] == 0 && is_numeric($v))
			{
				$sql['parser']['start']=1;
				$sql['parser']['end']=1;
			}
			if ($sql['parser']['start'] == 0 && substr($v,0,2) == "0X" && strpos($v," ") == false)
			{
				$sql['parser']['start']=1;
				$sql['parser']['end']=1;
			}
			if ($sql['parser']['start'] == 0 && is_object($v))
			{
				$sql['parser']['start']=1;
				$sql['parser']['end']=1;
			}

			if (substr($v,0,1) == "'" && $sql['parser']['start'] == 0)
			{
				$sql['parser']['start']=1;
				if (strlen($v) == 1) $first=1;
				$DELIMITER="'";
			}
			if (substr($v,0,1) == '"' && $sql['parser']['start'] == 0)
			{
				$sql['parser']['start']=1;
				if (strlen($v) == 1) $first=1;
				$DELIMITER='"';
			}
			if ($sql['parser']['start'] == 1 && $sql['parser']['end'] != 1 && $first == 0)
			{
				if (substr($v,-1) == $DELIMITER)
				{
					$B_Delimiter=( $DELIMITER == "'" ) ? $B_Ticks : $B_Dashes;
					//ist Delimiter maskiert?
					if (( $B_Esc % 2 ) == 1 && ( $B_Delimiter % 2 ) == 1 && strlen($v) > 2)
					{

						$sql['parser']['end']=1;
					}
					elseif (( $B_Delimiter % 2 ) == 1 && strlen($v) > 2)
					{
						//ist mit `'` maskiert
						$sql['parser']['end']=0;
					}
					elseif (( $B_Esc % 2 ) == 1)
					{
						//ist mit Backslash maskiert
						$sql['parser']['end']=0;
					}
					else
					{

						$sql['parser']['end']=1;
					}
				}
			}
			if ($debug == 1) echo "<font color='#0000FF'>" . $sql['parser']['start'] . "/" . $sql['parser']['end'] . "</font> Feld $i: " . htmlspecialchars($tb[$i]) . "<font color=#008000>- " . $sql['parser']['sqlparts'] . "  ($B_Ticks / $B_Esc)</font><br>";
			if ($sql['parser']['start'] == 1 && $sql['parser']['end'] == 1)
			{
				$sql['parser']['sqlparts']++;
				$sql['parser']['start']=$sql['parser']['end']=0;
			}
		}
	}
	return $s;
}

function SQLOutput($sqlcommand, $meldung='')
{
	global $sql,$lang;
	$s='<h6 align="center">' . $lang['L_SQL_OUTPUT'] . '</h6><div id="sqloutbox"><strong>';
	if ($meldung != '') $s.=trim($meldung);

	if (isset($sql['parser']['sql_commands']))
	{
		$s.=' ' . $sql['parser']['sql_commands'] . '</strong>' . $lang['L_SQL_COMMANDS_IN'] . round($sql['parser']['time_used'],4) . $lang['L_SQL_COMMANDS_IN2'] . '<br><br>';
		$s.=$lang['L_SQL_OUT1'] . '<strong>' . $sql['parser']['drop'] . '</strong> <span style="color:#990099;font-weight:bold;">DROP</span>-, ';
		$s.='<strong>' . $sql['parser']['create'] . '</strong> <span style="color:#990099;font-weight:bold;">CREATE</span>-, ';
		$s.='<strong>' . $sql['parser']['insert'] . '</strong> <span style="color:#990099;font-weight:bold;">INSERT</span>-, ';
		$s.='<strong>' . $sql['parser']['update'] . '</strong> <span style="color:#990099;font-weight:bold;">UPDATE</span>-' . $lang['L_SQL_OUT2'] . '<br>';
		$s.=$lang['L_SQL_OUT3'] . '<strong>' . $sql['parser']['comment'] . '</strong> ' . $lang['L_SQL_OUT4'] . '<br>';
		if ($sql['parser']['sql_commands'] < 50) $s.='<pre>' . Highlight_SQL($sqlcommand) . '</pre>';
		else $s.=$lang['L_SQL_OUT5'];
	}
	elseif ($sqlcommand != '') $s.='<h5 align="center">' . $lang['L_SQL_OUTPUT'] . '</h5><pre>' . Highlight_SQL($sqlcommand) . '</pre>';
	return $s . '</div>';
}

function GetCreateTable($db, $tabelle)
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();
	$res=mysqli_query($GLOBALS["___mysqli_ston"], "SHOW CREATE TABLE `$db`.`$tabelle`");
	if ($res)
	{
		$row=mysqli_fetch_array($res);
		if (isset($row['Create Table'])) return $row['Create Table'];
		elseif (isset($row['Create View'])) return $row['Create View'];
		else return false;
	}
	else
		return ((is_object($GLOBALS["___mysqli_ston"])) ? mysqli_error($GLOBALS["___mysqli_ston"]) : (($___mysqli_res = mysqli_connect_error()) ? $___mysqli_res : false));

}

function KindSQL($sql)
{
	if (preg_match('@^((-- |#)[^\n]*\n|/\*.*?\*/)*(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)@im',$sql))
	{
		return 2;
	}
	elseif (preg_match('@^((-- |#)[^\n]*\n|/\*.*?\*/)*(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)@im',$sql))
	{
		return 1;
	}
}

function GetPostParams()
{
	global $db,$dbid,$tablename,$context,$limitstart,$order,$orderdir,$sql;
	$db=$_POST['db'];
	$dbid=$_POST['dbid'];
	$tablename=$_POST['tablename'];
	$context=$_POST['context'];
	$limitstart=$_POST['limitstart'];
	$order=$_POST['order'];
	$orderdir=$_POST['orderdir'];
	$sql['sql_statement']=( isset($_POST['sql_statement']) ) ? $_POST['sql_statement'] : "SELECT * FROM `$tablename`";

}

// when fieldnames contain spaces or dots they are replaced with underscores
// we need to built the same index to get the postet values for inserts and updates
function correct_post_index($index)
{
	$index=str_replace(' ','_',$index);
	$index=str_replace('.','_',$index);
	return $index;
}
function ComboCommandDump($when, $index, $disabled = '')
{
	global $SQL_ARRAY,$nl,$databases,$lang;
	if (!is_array($SQL_ARRAY) || count($SQL_ARRAY) == 0)
	{
		$r='<a href="sql.php?context=1" class="uls">' . $lang['L_SQL_BEFEHLE'] . '</a>';
		if ($when == 0) $r.='<input type="hidden" name="command_before_' . $index . '" value="">';
		else $r.='<input type="hidden" name="command_after_' . $index . '" value="">';
	}
	else
	{
		if ($when == 0)
		{
			$r='<select class="SQLCombo" name="command_before_' . $index . '"'
			 . $disabled.'>';
			$csql=$databases['command_before_dump'][$index];
		}
		else
		{
			$r='<select class="SQLCombo" name="command_after_' . $index . '"'
			          . $disabled.'>';
			$csql=$databases['command_after_dump'][$index];
		}

		$r.='<option value="" ' . ( ( $csql == '' ) ? ' selected="selected"' : '' ) . '>&nbsp;</option>' . "\n";
		if (count($SQL_ARRAY) > 0)
		{
			for ($i=0; $i < count($SQL_ARRAY); $i++)
			{
				$s=trim(SQL_String($i));
				$r.='<option value="' . htmlspecialchars($s) . '" ' . ( ( $csql == $s ) ? ' selected="selected"' : '' ) . '>' . SQL_Name($i) . '</option>' . "\n";
			}
		}
		$r.='</select>';
	}
	return $r;
}

function EngineCombo($default="")
{
	global $config;
	if (!$config['dbconnection']) MSD_mysql_connect();

	$r='<option value="" ' . ( ( $default == "" ) ? "selected" : "" ) . '></option>';
	if (!MSD_NEW_VERSION)
	{
		//BDB | HEAP | ISAM | InnoDB | MERGE | MRG_MYISAM | MYISAM
		$r.='<option value="BDB" ' . ( ( "BDB" == $default ) ? "selected" : "" ) . '>BDB</option>';
		$r.='<option value="HEAP" ' . ( ( "HEAP" == $default ) ? "selected" : "" ) . '>HEAP</option>';
		$r.='<option value="ISAM" ' . ( ( "ISAM" == $default ) ? "selected" : "" ) . '>ISAM</option>';
		$r.='<option value="InnoDB" ' . ( ( "InnoDB" == $default ) ? "selected" : "" ) . '>InnoDB</option>';
		$r.='<option value="MERGE" ' . ( ( "MERGE" == $default ) ? "selected" : "" ) . '>MERGE</option>';
		$r.='<option value="MRG_MYISAM" ' . ( ( "MRG_MYISAM" == $default ) ? "selected" : "" ) . '>MRG_MYISAM</option>';
		$r.='<option value="MYISAM" ' . ( ( "MyISAM" == $default ) ? "selected" : "" ) . '>MyISAM</option>';
	}
	else
	{
		$res=mysqli_query($GLOBALS["___mysqli_ston"], "SHOW ENGINES");
		$num=mysqli_num_rows($res);
		for ($i=0; $i < $num; $i++)
		{
			$row=mysqli_fetch_array($res);
			$r.='<option value="' . $row['Engine'] . '" ' . ( ( $row['Engine'] == $default ) ? "selected" : "" ) . '>' . $row['Engine'] . '</option>';
		}
	}
	return $r;
}

function CharsetCombo($default="")
{
	global $config;
	if (!MSD_NEW_VERSION)
	{
		return "";
	}
	else
	{
		if (!isset($config['dbconnection'])) MSD_mysql_connect();
		$res=mysqli_query($GLOBALS["___mysqli_ston"], "SHOW Charset");
		$num=mysqli_num_rows($res);
		$r='<option value="" ' . ( ( $default == "" ) ? "selected" : "" ) . '></option>';
		$charsets=array();
		for ($i=0; $i < $num; $i++)
		{
			$charsets[]=mysqli_fetch_array($res);
		}

		if (is_array($charsets))
		{
			$charsets=mu_sort($charsets,'Charset');
			foreach ($charsets as $row)
			{
				$r.='<option value="' . $row['Charset'] . '" ' . ( ( $row['Charset'] == $default ) ? "selected" : "" ) . '>' . $row['Charset'] . '</option>';
			}
		}
		return $r;
	}
}

function GetCollationArray()
{
	global $config;
	if (!isset($config['dbconnection'])) MSD_mysql_connect();

	$res=mysqli_query($GLOBALS["___mysqli_ston"], "SHOW Collation");
	$num=@mysqli_num_rows($res);
	$r=Array();
	if (is_array($r))
	{
		for ($i=0; $i < $num; $i++)
		{
			$row=mysqli_fetch_array($res);
			$r[$i]['Collation']=isset($row['Collation']) ? $row['Collation'] : '';
			$r[$i]['Charset']=isset($row['Charset']) ? $row['Charset'] : '';
			$r[$i]['Id']=isset($row['Id']) ? $row['Id'] : '';
			$r[$i]['Default']=isset($row['Default']) ? $row['Default'] : '';
			$r[$i]['Compiled']=isset($row['Compiled']) ? $row['Compiled'] : '';
			$r[$i]['Sortlen']=isset($row['Sortlen']) ? $row['Sortlen'] : '';
		}
	}
	return $r;
}

function CollationCombo($default="", $withcharset=0)
{
	if (!MSD_NEW_VERSION)
	{
		return "";
	}
	else
	{
		$r=GetCollationArray();
		sort($r);
		$s='';
		$s='<option value=""' . ( ( $default == '' ) ? ' selected="selected"' : '' ) . '></option>';
		$group='';
		for ($i=0; $i < count($r); $i++)
		{
			$gc=$r[$i]['Charset'];
			if ($gc != $group)
			{
				$group=$gc;
				if ($i > 0) $s.='</optgroup>';
				$s.='<optgroup label="' . $group . '">';
			}
			$s.='<option value="' . ( ( $withcharset == 1 ) ? $group . '|' : '' ) . $r[$i]['Collation'] . '" ' . ( ( $r[$i]['Collation'] == $default ) ? "selected" : "" ) . '>' . $r[$i]['Collation'] . '</option>';
		}
		return $s . '</optgroup>';
	}
}

function AttributeCombo($default='')
{
	$s='<option value=""' . ( ( $default == '' ) ? ' selected="selected"' : '' ) . '></option>';
	$s.='<option value="unsigned" ' . ( ( $default == 'unsigned' ) ? ' selected="selected"' : '' ) . '>unsigned</option>';
	$s.='<option value="unsigned zerofill"' . ( ( $default == 'unsigned zerofill' ) ? ' selected="selected"' : '' ) . '>unsigned zerofill</option>';
	return $s;

}

function simple_bbcode_conversion($a)
{
	global $config;
	$tag_start='';
	$tag_end='';

	//replacements
	$a=nl2br($a);
	$a=str_replace('<br>',' <br>',$a);
	$a=str_replace('<br />',' <br>',$a);

	$a=preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/si","<a class=\"small\"  href=\"$1\" target=\"blank\">$2</a>",$a);
	$a=preg_replace("/\[urltargetself=(.*?)\](.*?)\[\/urltargetself\]/si","<a class=\"small\"  href=\"$1\" target=\"blank\">$2</a>",$a);
	$a=preg_replace("/\[url\](.*?)\[\/url\]/si","<a class=\"small\"  href=\"$1\" target=\"blank\">$1</a>",$a);
	$a=preg_replace("/\[ed2k=\+(.*?)\](.*?)\[\/ed2k\]/si","<a class=\"small\"  href=\"$1\" target=\"blank\">$2</a>",$a);
	$a=preg_replace("/\[ed2k=(.*?)\](.*?)\[\/ed2k\]/si","<a class=\"small\"  href=\"$1\" target=\"blank\">$2</a>",$a);

	$a=preg_replace("/\[center\](.*?)\[\/center\]/si","<div align=\"center\">$1</div>",$a);
	$a=preg_replace("/\[size=([1-2]?[0-9])\](.*?)\[\/size\]/si","<span style=\"font-size=$1px;\">$2</span>",$a);
	$a=preg_replace("/\[size=([1-2]?[0-9]):(.*?)\](.*?)\[\/size(.*?)\]/si","<span style=\"font-size=$1px;\">$3</span>",$a);
	$a=preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/si","<span style=\"font-family:$1;\">$2</span>",$a);
	$a=preg_replace("/\[color=(.*?)\](.*?)\[\/color\]/si","<span style=\"color=$1;\">$2</span>",$a);
	$a=preg_replace("/\[color=(.*?):(.*?)\](.*?)\[\/color(.*?)\]/si","<span style=\"color=$1;\">$3</span>",$a);
	$a=preg_replace("/\[img\](.*?)\[\/img\]/si","<img src=\"$1\" vspace=4 hspace=4>",$a);
	//$a=preg_replace("/\[b\](.*?)\[\/b\]/si", "<strong>$1</strong>", $a);
	$a=preg_replace("/\[b(.*?)\](.*?)\[\/b(.*?)\]/si","<strong>$2</strong>",$a);
	//$a=preg_replace("/\[u\](.*?)\[\/u\]/si", "<u>$1</u>", $a);
	$a=preg_replace("/\[u(.*?)\](.*?)\[\/u(.*?)\]/si","<u>$2</u>",$a);
	//$a=preg_replace("/\[i\](.*?)\[\/i\]/si", "<em>$1</em>", $a);
	$a=preg_replace("/\[i(.*?)\](.*?)\[\/i(.*?)\]/si","<em>$2</em>",$a);
	//$a=preg_replace("/\[quote\](.*?)\[\/quote\]/si", "<p align=\"left\" style=\"border: 2px solid silver;padding:4px;\">$1</p>", $a);
	$a=preg_replace("/\[quote(.*?)\](.*?)\[\/quote(.*?)\]/si","<p align=\"left\" style=\"border: 2px solid silver;padding:4px;\">$2</p>",$a);
	$a=preg_replace("/\[code(.*?)\](.*?)\[\/code(.*?)\]/si","<p align=\"left\" style=\"border: 2px solid red;color:green;padding:4px;\">$2</p>",$a);
	$a=preg_replace("/\[hide\](.*?)\[\/hide\]/si","<div style=\"background-color:#ccffcc;\">$1</div>",$a);
	$a=preg_replace("/(^|\s)+((http:\/\/)|(www.))(.+)(\s|$)+/Uis"," <a href=\"http://$4$5\" target=\"_blank\">http://$4$5</a> ",$a);
	return $tag_start . $a . $tag_end;
}

function ExtractTablenameFromSQL($q)
{
	global $databases,$db,$dbid;
	$tablename='';
	if (strlen($q) > 100) $q=substr($q,0,100);
	$p=trim($q);
	// if we get a list of tables - no current table is selected -> return ''
	if (strtoupper(substr($p,0,17)) == 'SHOW TABLE STATUS') return '';
	// check for SELECT-Statement to extract tablename after FROM
	if (strtoupper(substr($p,0,7)) == 'SELECT ')
	{
		$parts=array();
		$p=substr($p,strpos(strtoupper($p),'FROM') + 5);
		$parts=explode(' ',$p);
		$p=$parts[0];
	}
    // remove keyword DATABASES and the database name after that
    $p = preg_replace('/DATABASE [`]*\w+[`]*/i', '', $p);
    // remove other keywords
	$suchen=array(
               'SHOW DATABASES',
				'SHOW ',
				'SELECT',
				'DROP',
				'INSERT',
				'UPDATE',
				'DELETE',
				'CREATE',
				'TABLE',
				'STATUS',
				'FROM',
				'*'
	);
	$ersetzen=array(
                    '',
					'',
					'',
					'',
					'',
					'',
					'',
					'',
					'',
					'',
					'',
					''
	);
	$cleaned=trim(str_ireplace($suchen,$ersetzen,$p));
	$tablename=$cleaned;
	if (strpos($cleaned,' ')) $tablename=substr($cleaned,0,strpos($cleaned,' '));
	$tablename=str_replace('`','',$tablename); // remove backticks
	// take care of db-name.tablename
	if (strpos($tablename,'.'))
	{
		$p=explode('.',$tablename);
		$databases['db_actual']=$p[0];
		// if database is changed in Query we need to get the index of the actual db
		$db_temp=array_flip($databases['Name']);
		if (isset($db_temp[$databases['db_actual']]))
		{
			$databases['db_selected_index']=$db_temp[$databases['db_actual']];
			$dbid=$databases['db_selected_index'];
		}
		if (isset($_GET['tablename'])) unset($_GET['tablename']);
		//echo "<br>" . $db;
		$tablename=$p[1];
	}
	//	if (Table_Exists($databases['db_actual'],$tablename)) return $tablename;
	//	else return '';
	return $tablename;
}

function GetOptionsCombo($arr, $default)
{
	global $feldtypen,$feldattribute,$feldnull,$feldextras,$feldkeys,$feldrowformat;
	$r='';
	foreach ($arr as $s)
	{
		$r.='<option value="' . $s . '" ' . ( ( strtoupper($default) == strtoupper($s) ) ? "selected" : "" ) . '>' . $s . '</option>' . "\n";
	}
	return $r;
}

function make_options($arr, $selected)
{
	$r='';
	foreach ($arr as $key=>$val)
	{
		$r.='<option value="' . $key . '"';
		if ($key == $selected) $r.=' selected';
		$r.='>' . $val . '</option>' . "\n";
	}
	return $r;
}

/**
 * Reads MySQL field information (depricated: will be substituted by function getExtendedFieldInfos)
 *
 * Reads field information for each field of a MySQL table
 * and fills an array with the keys detected
 *
 * @param $db Database
 * @param $tabelle Table
 * @return array
 */
function getFieldinfos($db, $tabelle)
{
	global $config;
	$fields_infos=Array();
	$t=GetCreateTable($db,$tabelle);
	$sqlf="SHOW FULL FIELDS FROM `$db`.`$tabelle`;";
	$res=MSD_query($sqlf);
	$anz_fields=mysqli_num_rows($res);

	$fields_infos['_primarykeys_']=array();
	$fields_infos['_key_']=array();
	$fields_infos['_uniquekey_']=array();
	$fields_infos['_fulltextkey_']=array();

	$fields_infos['_tableinfo_']=array(
										'ENGINE' => 'MyISAM',
										'AUTO_INCREMENT' => '',
										'DEFAULT CHARSET' => ''
	);

	for ($i=0; $i < $anz_fields; $i++)
	{
		// define defaults
		$fields_infos[$i]['name']='';
		$fields_infos[$i]['size']='';
		$fields_infos[$i]['default']='';
		$fields_infos[$i]['extra']='';
		$fields_infos[$i]['attributes']='';
		$fields_infos[$i]['null']='';
		$fields_infos[$i]['collate']='';
		$fields_infos[$i]['comment']='';
		$fields_infos[$i]['type']='';
		$fields_infos[$i]['privileges']='';

		$row=mysqli_fetch_array($res, MYSQLI_ASSOC);
		//v($row);
		if (isset($row['Collation'])) $fields_infos[$i]['collate']=$row['Collation'];
		if (isset($row['COLLATE'])) $fields_infos[$i]['collate']=$row['COLLATE']; // MySQL <4.1
		if (isset($row['Comment'])) $fields_infos[$i]['comment']=$row['Comment'];
		if (isset($row['Type'])) $fields_infos[$i]['type']=$row['Type'];
		if (isset($row['Field'])) $fields_infos[$i]['name']=$row['Field'];
		$fields_infos[$i]['size']=get_attribut_size_from_type($fields_infos[$i]['type']);
		// remove size from type for readability in output
		$fields_infos[$i]['type']=str_replace('(' . $fields_infos[$i]['size'] . ')','',$fields_infos[$i]['type']);
		// look for attributes, everthing behind the first space is an atribut
		$attributes=explode(' ',$fields_infos[$i]['type'],2);
		if (isset($attributes[1]))
		{
			// we found attributes
			unset($attributes[0]); // delete type
			$fields_infos[$i]['attributes']=trim(implode(' ',$attributes)); //merge all other attributes
			// remove attributes from type
			$fields_infos[$i]['type']=trim(str_replace($fields_infos[$i]['attributes'],'',$fields_infos[$i]['type']));
		}
		if (isset($row['NULL'])) $fields_infos[$i]['null']=$row['NULL'];
		if (isset($row['Null'])) $fields_infos[$i]['null']=$row['Null'];
		if (isset($row['Default'])) $fields_infos[$i]['default']=$row['Default'];
		if (isset($row['Extra'])) $fields_infos[$i]['extra']=$row['Extra'];
		if (isset($row['Privileges'])) $fields_infos[$i]['privileges']=$row['Privileges'];
		if (isset($row['privileges'])) $fields_infos[$i]['privileges']=$row['privileges'];
	}

	// now get key definitions of the table and add info to fields
	$sql='SHOW KEYS FROM `' . $db . '`.`' . $tabelle . '`';
	$res=MSD_query($sql);
	WHILE ($row=mysqli_fetch_array($res, MYSQLI_ASSOC))
	{
		//v($row);
		$key_name=isset($row['Key_name']) ? $row['Key_name'] : '';
		$index_type=isset($row['Index_type']) ? $row['Index_type'] : '';
		$column_name=isset($row['Column_name']) ? $row['Column_name'] : '';
		$non_unique=isset($row['Non_unique']) ? $row['Non_unique'] : '';
		if ($column_name > '')
		{
			// first find indexnr of field
			for ($index=0, $count=sizeof($fields_infos); $index < $count; $index++)
			{
				if ($fields_infos[$index]['name'] == $column_name) break;
			}
			if ($key_name == 'PRIMARY')
				$fields_infos['_primarykeys_'][]=$column_name;
			elseif ($index_type == 'FULLTEXT')
				$fields_infos['_fulltextkey_'][]=$column_name;
			elseif ($non_unique == 0)
				$fields_infos['_uniquekey_'][]=$column_name;
			else
				$fields_infos['_key_'][]=$column_name;
		}
	}
	//v($fields_infos);
	return $fields_infos;
}

/**
 * Reads extened MySQL field information
 *
 * Reads extened field information for each field of a MySQL table
 * and fills an array like
 * array(
 *  [Fieldname][attribut]=value,
 *  ['primary_key']=keys
 * )
 *
 * @param $db Database
 * @param $table Table
 * @return array Field infos
 */
function getExtendedFieldInfo($db, $table)
{
	global $config;
	$fields_infos=Array();
	$t=GetCreateTable($db,$table);
	$sqlf="SHOW FULL FIELDS FROM `$db`.`$table`;";
	$res=MSD_query($sqlf);
	$num_fields=mysqli_num_rows($res);

	$f=array(); //will hold all info
	for ($x=0; $x < $num_fields; $x++)
	{
		$row=mysqli_fetch_array($res, MYSQLI_ASSOC);
		//v($row);
		$i=$row['Field']; // define name of field as index of array
		//define field defaults - this way the index of the array is defined anyway
		$f[$i]['field']='';
		$f[$i]['collation']='';
		$f[$i]['comment']='';
		$f[$i]['type']='';
		$f[$i]['size']='';
		$f[$i]['attributes']='';
		$f[$i]['null']='';
		$f[$i]['default']='';
		$f[$i]['extra']='';
		$f[$i]['privileges']='';
		$f[$i]['primary_keys']=array();

		if (isset($row['Collation'])) $f[$i]['collate']=$row['Collation'];
		if (isset($row['COLLATE'])) $f[$i]['collate']=$row['COLLATE']; // MySQL <4.1
		if (isset($row['Comment'])) $f[$i]['comment']=$row['Comment'];
		if (isset($row['Type'])) $f[$i]['type']=$row['Type'];
		if (isset($row['Field'])) $f[$i]['field']=$row['Field'];
		$f[$i]['size']=get_attribut_size_from_type($f[$i]['type']);
		// remove size from type for readability in output
		$f[$i]['type']=str_replace('(' . $f[$i]['size'] . ')','',$f[$i]['type']);
		// look for attributes, everthing behind the first space is an atribut
		$attributes=explode(' ',$f[$i]['type'],2);
		if (isset($attributes[1]))
		{
			// we found attributes
			unset($attributes[0]); // delete type
			$f[$i]['attributes']=trim(implode(' ',$attributes)); //merge all other attributes
			// remove attributes from type
			$f[$i]['type']=trim(str_replace($f[$i]['attributes'],'',$f[$i]['type']));
		}
		if (isset($row['NULL'])) $f[$i]['null']=$row['NULL'];
		if (isset($row['Null'])) $f[$i]['null']=$row['Null'];
		if (isset($row['Default'])) $f[$i]['default']=$row['Default'];
		if (isset($row['Extra'])) $f[$i]['extra']=$row['Extra'];
		if (isset($row['Privileges'])) $f[$i]['privileges']=$row['Privileges'];
		if (isset($row['privileges'])) $f[$i]['privileges']=$row['privileges'];
	}

	// now get key definitions of the table and add info to field-array
	$sql='SHOW KEYS FROM `' . $db . '`.`' . $table . '`';
	$res=MSD_query($sql);
	WHILE ($row=mysqli_fetch_array($res, MYSQLI_ASSOC))
	{
		//echo "<br>Keys of $table: ";v($row);
		$key_name=isset($row['Key_name']) ? $row['Key_name'] : '';
		$index_type=isset($row['Index_type']) ? $row['Index_type'] : '';
		$column_name=isset($row['Column_name']) ? $row['Column_name'] : '';
		// to do: add other info about index etc.
		if ($key_name == 'PRIMARY') $f['primary_keys'][]=$column_name;
	}
	return $f;
}

function ChangeKeys($ok, $nk, $fld, $size, $restriction='')
{
	if ($ok[0] == $nk[0] && $ok[1] == $nk[1] && $ok[2] == $nk[2] && $ok[3] == $nk[3]) return '';
	else
	{
		$s='';
		if ($ok[0] == 0 && $nk[0] == 1)
		{
			if ($restriction != 'drop_only') $s.="ADD PRIMARY KEY (`$fld`), ";
		}
		elseif ($ok[0] == 1 && $nk[0] == 0)
		{
			$s.='DROP PRIMARY KEY, ';
		}
		if ($ok[1] == 0 && $nk[1] == 1)
		{
			if ($restriction != 'drop_only') $s.="ADD UNIQUE INDEX `$fld` (`$fld`), ";
		}
		elseif ($ok[1] == 1 && $nk[1] == 0)
		{
			$s.="DROP INDEX `$fld`, ";
		}
		if ($ok[2] == 0 && $nk[2] == 1)
		{
			if ($restriction != 'drop_only') $s.="ADD INDEX `$fld` (`$fld`), ";
		}
		elseif ($ok[2] == 1 && $nk[2] == 0)
		{
			$s.="DROP INDEX `$fld`, ";
		}
		if ($ok[3] == 0 && $nk[3] == 1)
		{
			if ($restriction != 'drop_only') $s.="ADD FULLTEXT INDEX `$fld` (`$fld`($size)), ";
		}
		elseif ($ok[3] == 1 && $nk[3] == 0)
		{
			$s.="DROP FULLTEXT INDEX `$fld`, ";
		}
	}
	if ($s != '') $s=substr($s,0,strlen($s) - 2);
	return $s;
}

function build_where_from_record($data)
{
	if (!is_array($data)) return false;
	$ret='';
	foreach ($data as $key=>$val)
	{
		$val=str_replace('<span class="treffer">','',$val);
		$val=str_replace('</span>','',$val);
		$ret.='`' . $key . '`="' . addslashes($val) . '" AND ';
	}
	$ret=substr($ret,0,-5);
	return $ret;
}

/*
 * Array mit Primaerschluesseln aufbauen
 * INPUT: Datenbank.Tabelle (oder nur Tabelle)
 * OUTPUT: Array mit allen Tabellenschluesseln
 * Author: DH
 */
function getPrimaryKeys($db, $table)
{
	$keys=Array();
	$sqlk="SHOW KEYS FROM `" . $db . "`.`" . $table . "`;";
	$res=MSD_query($sqlk);
	while ($row=mysqli_fetch_array($res))
	{
		//wenn Primaerschluessel
		if ($row['Key_name'] == "PRIMARY") $keys['name'][]=$row['Column_name'];
		if ($row['Sub_part'] != null) 
		{
			$keys['size'][]=$row['Sub_part'];
		}	
		else
		{
			$keys['size'][]='';
		}
	}
	
	return $keys;
}

/*
 * Array mit allen Feldern aufbauen
 * INPUT: Datenbank.Tabelle
 * OUTPUT: Array mit allen Feldern der Tabelle
 * Author: DH
 */
function getAllFields($db, $table)
{
	$fields=Array();
	$sqlk="DESCRIBE `" . $db . "`.`" . $table . "`;";
	$res=MSD_query($sqlk);
	while ($row=mysqli_fetch_array($res))
	{
		$fields[]=$row['Field'];
	}
	return $fields;
}

/*
 * Alte Primaerschluessel verwerfen, neue Primaerschluessel setzen
 * INPUT: Datenbank.Tabelle, Array mit neuen Primaerschluesseln
 * OUTPUT: true/false
 * Author: DH
 */
function setNewPrimaryKeys($db, $table, $newKeys, $indexSizes)
{
    $sqlSetNewPrimaryKeys="ALTER TABLE `" . $db . "`.`" . $table . "`";
    //wenn es Primaerschluessel gibt, diese loeschen
    $existingKeys = getPrimaryKeys($db, $table);
    if (count($existingKeys) > 0)
    {
        $sqlSetNewPrimaryKeys.=" DROP PRIMARY KEY";
    }
    //wenn min. 1 Schluessel im Array, sonst nur loeschen
	if (count($newKeys) > 0)
	{
        if (count($existingKeys) > 0)
        {
            $sqlSetNewPrimaryKeys.=", ";
        }
        $sqlSetNewPrimaryKeys.=" ADD PRIMARY KEY (";
		foreach ($newKeys as $id => $name)
		{
			if ($id > 0) $sqlSetNewPrimaryKeys.=", ";
			$sqlSetNewPrimaryKeys.="`" . $name . "`";
			if ($indexSizes[$id]) {
				$sqlSetNewPrimaryKeys.=" (" . $indexSizes[$id] . ")";
			}
		}
		$sqlSetNewPrimaryKeys.=")";
	}
	$sqlSetNewPrimaryKeys.=";";
	$res=MSD_query($sqlSetNewPrimaryKeys);
	return $res;
}

function setNewKeys($db, $table, $newKeys, $indexType, $indexName, $indexSizes)
{
    $sqlSetNewKeys="ALTER TABLE `" . $db . "`.`" . $table . "` ";
    $sqlSetNewKeys.="ADD ".$indexType." ";
	if ($indexName)
	{
		 $sqlSetNewKeys.="`" . $indexName ."` ";
	}
	$sqlSetNewKeys.="(";
	foreach ($newKeys as $id => $name)
    {
		if ($id > 0) $sqlSetNewKeys.=", ";
		$sqlSetNewKeys.="`" . $name . "`";
		if ($indexSizes[$id]) {
			$sqlSetNewKeys.=" (" . $indexSizes[$id] . ")";
		}
	}
	$sqlSetNewKeys.=");";
	$res=MSD_query($sqlSetNewKeys);
	return $res;
}

function killKey($db, $table, $indexName)
{
	$sqlKillKey = "ALTER TABLE `".$db."`.`".$table."` DROP INDEX `".$indexName."`";
	$res=MSD_query($sqlKillKey);
	return $res;
}

function get_output_attribut_null($null)
{
	global $lang;
	if ($null == '') return $lang['L_YES'];
	$not_null=array(
					'NO',
					'NOT NULL'
	);
	if (in_array($null,$not_null)) return $lang['L_NO'];
	else return $lang['L_YES'];
}

function get_attribut_size_from_type($type)
{
	$size='';
	$matches=array();
	$pattern='/\((\d.*?)\)/msi';
	preg_match($pattern,$type,$matches);
	if (isset($matches[1])) $size=$matches[1];
	return $size;
}


// Bildet die WHERE-Bedingung zur eindeutigen Identifizierung wenn kein Primaerschluessel vorhanden ist
// erwartet ein Array mit $data[feldname]=wert
function build_recordkey($data)
{
	if (!is_array($data)) return urlencode($data);
	else return urlencode(serialize($data));
}

?>