56c56,62
< 		if ( strpos( $p_str, csv_get_separator() ) !== false ) {
---
> 		$t_escaped = str_split( '"' . csv_get_separator() . csv_get_newline() );
> 		$t_must_escape = false;
> 		while( ( $t_char = current( $t_escaped ) ) !== false && !$t_must_escape ) {
> 			$t_must_escape = strpos( $p_str, $t_char ) !== false;
> 			next( $t_escaped ); 
> 		}
> 		if ( $t_must_escape ) {