private function isOperator(Token $token)
{
static $arrayOperators = array(T_AND_EQUAL => true, T_BOOLEAN_AND => true, T_BOOLEAN_OR => true, T_CONCAT_EQUAL => true, T_DIV_EQUAL => true, T_DOUBLE_ARROW => true, T_IS_EQUAL => true, T_IS_GREATER_OR_EQUAL => true, T_IS_IDENTICAL => true, T_IS_NOT_EQUAL => true, T_IS_NOT_IDENTICAL => true, T_IS_SMALLER_OR_EQUAL => true, T_LOGICAL_AND => true, T_LOGICAL_OR => true, T_LOGICAL_XOR => true, T_MINUS_EQUAL => true, T_MOD_EQUAL => true, T_MUL_EQUAL => true, T_OR_EQUAL => true, T_PLUS_EQUAL => true, T_SL => true, T_SL_EQUAL => true, T_SR => true, T_SR_EQUAL => true, T_XOR_EQUAL => true);
static $nonArrayOperators = array('=' => true);
return $token->isArray() ? isset($arrayOperators[$token->id]) : isset($nonArrayOperators[$token->content]);
}
