PHP FILTER_SANITIZE_ENCODED Filter
The FILTER_SANITIZE_ENCODED filter removes or encodes special characters.This filter works a lot like the urlencode() function.
Possible options and flags : -
FILTER_FLAG_STRIP_LOW - Remove characters with ASCII value < 32
FILTER_FLAG_STRIP_HIGH - Remove characters with ASCII value > 127
FILTER_FLAG_ENCODE_LOW - Encode characters with ASCII value < 32
FILTER_FLAG_ENCODE_HIGH - Encode characters with ASCII value > 127
Example -