PHP cleans malicious code input to database

It can clean all input data and reduce the chance of code injection.

 function sanitize_input_data($input_data) {
 $input_data = trim(htmlentities(strip_tags($input_data,“,”)));
 if (get_magic_quotes_gpc())
 $input_data = stripslashes($input_data);
 $ input_data = mysql_real_escape_string($input_data);
 return $input_data;
 }

Malicious code, PHP