PHP Import CSV into MySQL

/********************************/
/* Code at http://legend.ws/blog/tips-tricks/csv-php-mysql-import/
/* Edit the entries below to reflect the appropriate values
/********************************/
$databasehost = "localhost";
$databasename = "test";
$databasetable = "sample";
$databaseusername ="test";
$databasepassword = "";
$fieldseparator = ",";
$lineseparator = "\n";
$csvfile = "filename.csv";
/********************************/
/* Would you like to add an ampty field at the beginning of these records?
/* This is useful if you have a table with the first field being an auto_increment integer
/* and the csv file does not have such as empty field before the records.
/* Set 1 for yes and 0 for no. ATTENTION: don't set to 1 if you are not sure.
/* This can dump data in the wrong fields if this extra field does not exist in the table
/********************************/
$addauto = 0;
/********************************/
/* Would you like to save the mysql queries in a file? If yes set $save to 1.
/* Permission on the file should be set to 777. Either upload a sample file through ftp and
/* change the permissions, or execute at the prompt: touch output.sql && chmod 777 output.sql
/********************************/
$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 $databasetable values('','$linemysql');";
 else
  $query = "insert into $databasetable values('$linemysql');";
 
 $queries .= $query . "\n";

 @mysql_query($query);
}

@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);
  }
 }
 
}

echo "Found a total of $lines records in this csv file.\n";

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