Escape special characters

Hey,

I'm haveing problem with insert query. Query is breaking and I have found a problem in special characters. I tried to use htmlentites() and mysql_real_esacpe_string(9 but it doesn't work. Can you help me out a bit? What peace of code could I use to escape special characters?

This is the peace of code I'm using to insert data from csv into mysql.

	//Import uploaded file to Database
	$handle = fopen($_FILES['filename']['tmp_name'], "r");

	while (($data = fgetcsv($handle, 1000000, ";")) !== FALSE) {
	
		$import="INSERT DELAYED INTO kalkulacija_import_kategorija (uvezao, vrijeme,kat_br,naziv_artikla,kategorija_artikla,grupa_proizvoda,podgrupa_proizvoda) VALUES ('$napravio','$vrijeme','$data[0]','$data[1]','$data[2]','$data[3]','$data[4]')";
		echo "$import<br>";
		mysql_query($import) or die(mysql_error());
	
	}

$data[1] is the part that inserts problematic data into mysql. Error message I'm getting is:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'N'G BP/225/232','1H','1HRD','1HRDDG')' at line 1