Array PHP To CSV with Sanitizing arrays

Found this somewhere I forgot, what this do is when you have bunch of arrays but when a quotes or something else that will mess up the writing to csv, this is the best I could find so far.

function array_to_scv($array, $header_row = true, $col_sep = ",", $row_sep = "n", $qut = '"')
    {
        $output = '';
    	if (!is_array($array) or !is_array($array[0])) return false;
    	
    	//Header row.
    	if ($header_row)
    	{
    		foreach ($array[0] as $key => $val)
    		{
    			//Escaping quotes.
    			$key = str_replace($qut, "$qut$qut", $key);
    			$output .= "$col_sep$qut$key$qut";
    		}
    		$output = substr($output, 1)."n";
    	}
        
    	//Data rows.
    	foreach ($array as $key => $val)
    	{
    		$tmp = '';
    		foreach ($val as $cell_key => $cell_val)
    		{
    			//Escaping quotes.
    			$cell_val = str_replace($qut, "$qut$qut", $cell_val);
    			$tmp .= "$col_sep$qut$cell_val$qut";
    		}
    		$output .= substr($tmp, 1).$row_sep;
    	}
    	
    	return $output;
    }

Update found another good one

    function convert_to_csv($input_array, $output_file_name, $delimiter)
    {
        /** open raw memory as file, no need for temp files */
        $temp_memory = fopen('php://memory', 'w');
        /** loop through array  */
        foreach ($input_array as $line) {
            /** default php csv handler **/
            fputcsv($temp_memory, $line, $delimiter);
        }
        /** rewrind the "file" with the csv lines **/
        fseek($temp_memory, 0);
        /** modify header to be downloadable csv file **/
        header('Content-Type: application/csv');
        header('Content-Disposition: attachement; filename="' . $output_file_name . '";');
        /** Send file to browser for download */
        fpassthru($temp_memory);
    }

    function convert()
    {
        /** Array to convert to csv */
        $array_to_csv = Array(
            Array(12566,
                'Enmanuel',
                'Corvo'
            ),
            Array(56544,
                'John',
                'Doe'
            ),
            Array(78550,
                'Mark',
                'Smith'
            )
        );
        $this->convert_to_csv($array_to_csv, 'export.csv', ',');
    }