src/Leevel/Database/Condition.php
public function join($table, $cols, $cond): self
    {
        if ($this->checkFlowControl()) {
            return $this;
        }

        $args = func_get_args();
        array_unshift($args, 'inner join');

        return $this->addJoin(...$args);
    }
public function join($table, $cols, $cond): self
    {
        if ($this->checkFlowControl()) {
            return $this;
        }

        $args = func_get_args();
        array_unshift($args, 'inner join');

        return $this->addJoin(...$args);
    }
join 查询.

@param mixed        $table 同 table $table
@param array|string $cols  同 table $cols
@param mixed        $cond  同 where $cond

@return $this