trim Strip whitespace from the beginning and end of a string stringtrim stringstr stringcharlist The optional charlist parameter was added in PHP 4.1.0 This function returns a string with whitespace stripped from the beginning and end of str. Without the second parameter, trim will strip these characters: " " (ASCII 32 (0x20)), an ordinary space. "\t" (ASCII 9 (0x09)), a tab. "\n" (ASCII 10 (0x0A)), a new line (line feed). "\r" (ASCII 13 (0x0D)), a carriage return. "\0" (ASCII 0 (0x00)), the NUL-byte. "\x0B" (ASCII 11 (0x0B)), a vertical tab. You can also specify the characters you want to strip, by means of the charlist parameter. Simply list all characters that you want to be stripped. With .. you can specify a range of characters. ]]> See also ltrim and rtrim.