Trim Function in PHP

This function removes all special characters - \t\n\r\0\x0B?#!@%^&*()\"',.\/;:><[]{}+=-_|`~

and returns the new one.


function trimall($str, $charlist = " \t\n\r\0\x0B?#!@%^&*()\"',.\/;:><[]{}+=-_|`~")
{
 $str=str_replace("$",'',$str);
  return str_replace(str_split($charlist), '', $str);

}