PHP RTrim () function

RTrim () function alias Chop ()

Definition and usage
The function removes whitespace characters or other predefined characters from the end of the string.
RTrim (String,charlist)
string is required. Specifies the string to convert.
Charlist is optional. Specifies which characters are removed from the string.

If this parameter is not set, all of the following characters are removed:
"+"-ASCII 0, NULL
"\ T"-ASCII 9, tab
"\ n"-ASCII 10, New line
"\X0B"-ASCII 11, Vertical tab
"\ r"-ASCII 13, enter
""-ASCII 32, space

PHP RTrim () function