... this type of operator.String Operators PHP s string operators (see Table 3-6) provide a convenient way in which to concatenate strings together. There are two such operators, including the ... NA Less than, less than or equal to, greater than, greater than or equal to == != === <> NA Is equal to, is not equal to, is identical to, is not equal to & ^ | Left Bitwise AND, bitwise ... because the multiplication (*) operator is left -to- right associative. In contrast, right -to- left associativity evaluates operators of the same precedence from right to left:$c = 5;print $value...