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RTRIM(3) 1 RTRIM(3) rtrim - Strip whitespace (or other characters) from the end of a string SYNOPSIS
string rtrim (string $str, [string $character_mask]) DESCRIPTION
This function returns a string with whitespace stripped from the end of $str. Without the second parameter, rtrim(3) will strip these characters: o " " (ASCII 32 ( 0x20)), an ordinary space. o " " (ASCII 9 ( 0x09)), a tab. o " " (ASCII 10 ( 0x0A)), a new line (line feed). o " " (ASCII 13 ( 0x0D)), a carriage return. o "