PHP - CSV to MySQL

$databasehost = "localhost";
$databasename = "database";
$databasetable = "table";
$databaseusername ="username";
$databasepassword = "password";
$fieldseparator = ",";
$lineseparator = "\n";
$csvfile = "CSVtoInsert.csv";
$addauto = 0;

$save = 1;
$outputfile = "output.sql";


if(!file_exists($csvfile)) {
	echo "File not found. Make sure you specified the correct path.\n";
	exit;
}

$file = fopen($csvfile,"r");

if(!$file) {
	echo "Error opening data file.\n";
	exit;
}

$size = filesize($csvfile);

if(!$size) {
	echo "File is empty.\n";
	exit;
}

$csvcontent = fread($file,$size);

fclose($file);

$con = @mysql_connect($databasehost,$databaseusername,$databasepassword) or die(mysql_error());
@mysql_select_db($databasename) or die(mysql_error());

$lines = 0;
$queries = "";
$linearray = array();

foreach(split($lineseparator,$csvcontent) as $line) {

	$lines++;

	$line = trim($line," \t");
	
	$line = str_replace("\r","",$line);
	
	/************************************
	This line escapes the special character. remove it if entries are already escaped in the csv file
	************************************/
	$line = str_replace("'","\'",$line);
	/*************************************/
	
	$linearray = explode($fieldseparator,$line);
	
	$linemysql = implode("','",$linearray);
	
	if($addauto)
		$query = "insert into $databasetable (id, SID, SSID, SSTID, SubTypeName, PostCode, DistrictLetters, town, County, SPPostcodeSortNo, perLift, haulage, tonnage, onDelivery, onCollection) 
 values('','$linemysql');";
	else
		$query = "insert into $databasetable (id, SID, SSID, SSTID, SubTypeName, PostCode, DistrictLetters, town, County, SPPostcodeSortNo, perLift, haulage, tonnage, onDelivery, onCollection) values('$linemysql');";
	
	$queries .= $query . "\n";
 		
	@mysql_query($query);
}
die(mysql_error());
@mysql_close($con);

if($save) {
	
	if(!is_writable($outputfile)) {
		echo "File is not writable, check permissions.\n";
	}
	
	else {
		$file2 = fopen($outputfile,"w");
		
		if(!$file2) {
			echo "Error writing to the output file.\n";
		}
		else {
			fwrite($file2,$queries);
			fclose($file2);
		}
	}
	
}

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