Mysql Dump Splitter

#!/usr/bin/php
<?php
$start=time();
echo "MySQL Dump Split to Tables \r\n";

set_time_limit(600);

$filetype=mime_content_type($argv[1]);

if(!isset($argv[1]))
{
	echo "Please provide dump file as a argument \r\n";
	echo "If the 2nd argument is gzip it will compress the sql dumps of the tables \r\n";
	exit(1);
}


if(isset($argv[2]))
{
	if($argv[2] == "gzip")
	{
		$gzipoutput=true;
	}
}

if($filetype == "text/plain")
{
	$handle = @fopen($argv[1], "r");
}
else if($filetype == "application/x-gzip")
{
	$handle = @gzopen($argv[1], "r");
}
else
{
	echo "Please provide a sql or gzip compressed sql file \r\n";
        exit(1);
}


$header=true;
if ($handle) 
{
	while (!feof($handle)) 
	{
		$line = fgets($handle);
		if($header == true && !strstr($line, 'Table structure for table'))
		{
			$headersstuff=$headersstuff.$line."\n";	
		}
		
		if(strstr($line, 'Table structure for table'))
		{
			$header=false;
			
			if(isset($out))
			{
				if($gzipoutput == true)
				{
					gzclose($out);
				}
				else
				{
					fclose($out);
				}
				unset($out);
			}
			
			preg_match('%Table structure for table `(.+?)`%', $line, $matches);
			$table_name = $matches[1];
			if($gzipoutput == true)
			{	
				$out = gzopen($table_name . '.gz', 'w');	
			}
			else
			{
				$out = fopen($table_name . '.sql', 'w');
			}
			echo "Create dump for $table_name \r\n";
			fwrite($out,$headersstuff);
			fwrite($out, $line . "\n");
		}
		else
		{
			if(isset($out))
			{
				fwrite($out, $line . "\n");
			}
		}
	}
	
	if($gzipoutput == true)
        {
        	gzclose($out);
        }
        else
      	{
               fclose($out);
        }
        
	unset($out);

	
	if($filetype == "text/plain")
	{
		fclose($handle);
	}
	else
	{
		gzclose($handle);	
	}
}
else
{
	echo "Unable to open file \r\n";
        exit(1);
}
$end=time();
$total=$end-$start;
echo "\r\n Total time taken in seconds".$total."\r\n";
echo "Done \r\n";
?>