PHP array

        $data = [
            'a' => '',
            'b' => false,
            'c' => 0,
            'd' => null,
            'e' => '0',
        ];
        $data= array_filter($data,function ($val){return ($val === '' || $val === null) ? false : true;});

得到的结果为：

	$arr = ['b' => false,'c' => 0,'e' => '0'];