How to remove all the special characters like "RS" (record separator)

Question

I want to ask what is the best way to use php to remove unwanted special characters like RS? because if I contain such characters in my xml document, it makes the client program parsing failed.

(the data source contains both english and chinese characters)

thx!!

Answer 1

you can use strtr for all special characters codes (is very fast):

$output = strtr($input, "\x1E\x06", "  "); // Remove RS and ACK

(there is 2 chars inside the first and 2 spaces inside the second string)

or a range with preg_replace:

$output = preg_replace("/[\x1C-\x1F]/", "", $input); // Remove FS GS RS US