Mega Code Archive

 

Categories / Php / Operator

 

Operators, precedence, and their associativity

Operators                                                        Associativity   ,             Left                                               "$x, $y, $z" is "($x, $y), $z"   or            Left                                               "$x OR $y OR $z" is "($x OR $y) OR $z"   xor           left                                               "x XOR y XOR z" is "($x XOR $y) XOR $z"   and           Left                                               "x AND y AND z" is "(x AND y) AND z"   = += -= * = /= .= %= &= |= ^= <<= gt;>=           Right          "$x /= $y /= $z" is "$x /= ($y /= $z)"   ? :           Left   ||            Left                                               "$x || $y || $z" is "($x || $y) || $z"   &&            Left                                               "$x && $y && $z" is "($x && $y) && $z"   |             Left                                               "$x | $y | $z" is "($x | $y) | $z"   ^             Left                                               "$x ^ $y ^ $z" is "($x ^ $y) ^ $z"   &             Left                                               "$x & $y & $z" is "($x & $y) & $z"   == != === !==                Non-associative     < < = > >=                    Non-associative     << >>          Left                                               "$x >> $y >> $z" is "($x >> $y) >> $z"   + - .          Left                                               "$x - $y - $z" is "($x - $y) - $z"   * / %          Left                                               "$x / $y / $z" is "($x / $y) / $z"   ! ~ ++ -- (int) (float) (string)(array) (object) @     Right     [              Right   new            Non-associative