common_helper

雨点打透心脏的1/2处 2022-03-15 01:52 168阅读 0赞

**1、将多维数组的数据单元的索引修改为某一列值**

/**
     * @param $arrs
     * @param $name 字符串索引
     * @return array
     */
    function array_toolkit_index($arrs, $name)
    {
        if (empty($arrs)) {
            return array();
        }
    
        $indexArray = array();
        foreach ($arrs as $arr) {
            if (isset($arr[$name])) {
                $indexArray[$arr[$name]] = $arr;
            }
        }
    
        return $indexArray;
    }
    
    
    $records  = array(
        array(
            'id'  =>  2135 ,
            'first_name'  =>  'John' ,
            'last_name'  =>  'Doe' ,
        ),
        array(
            'id'  =>  3245 ,
            'first_name'  =>  'Sally' ,
            'last_name'  =>  'Smith' ,
        ),
        array(
            'id'  =>  5342 ,
            'first_name'  =>  'Jane' ,
            'last_name'  =>  'Jones' ,
        ),
        array(
            'id'  =>  5623 ,
            'first_name'  =>  'Peter' ,
            'last_name'  =>  'Doe' ,
        )
    );
    $indexArray = array_toolkit_index($records, 'first_name');
    echo '<pre>';
    print_r($indexArray);
    /*
     * Array
    (
        [John] => Array
            (
                [id] => 2135
                [first_name] => John
                [last_name] => Doe
            )
    
        [Sally] => Array
            (
                [id] => 3245
                [first_name] => Sally
                [last_name] => Smith
            )
    
        [Jane] => Array
            (
                [id] => 5342
                [first_name] => Jane
                [last_name] => Jones
            )
    
        [Peter] => Array
            (
                [id] => 5623
                [first_name] => Peter
                [last_name] => Doe
            )
    
    )
     * */

**2、如果存在该键名，返回对应值，否则使用默认值**

function get_param($params, $key, $defaultValue = '')
    {
      if (isset($params[$key])) {
          return $params[$key];
      }
         return $defaultValue;
    }
    
    $where = get_param($ary,"where",[]);
    $select =  get_param($ary,"select",[]);

**3、 按某个键名对应的值进行分组**

/**
     * 通过type类型对数据分组
     * @param $arrs
     * @param $type
     * @return array
     */
    function array_toolkit_group($arrs, $type)
    {
        if (empty($arrs)) {
            return array();
        }
    
        $group = array();
        foreach ($arrs as $arr) {
            if (empty($group[$arr[$type]])) {
                $group[$arr[$type]] = array();
            }
            $group[$arr[$type]][] = $arr;
        }
    
        return $group;
    }
    
    //比如财务报表里，按日期进行分组
    $products_sta = Sys_Product_Statistical_V3::get_rows([
        'where' => ['date >=' => $params['time'][0], 'date <=' => $params['time'][1]]
    ]);
    
    $products_sta = array_toolkit_group($products_sta, 'date');
    /*
    Array
    (
        [2019-03-19] => Array
            (
                [0] => Array
                    (
                        [id] => 2366
                        [product_id] => 2
                        [product_name] => 爱奇艺
                        [product_uv] => 1
                        [product_uv_source] => 漂流侠测试APP
                        [product_settle_type] => UV
                        [date] => 2019-03-19
    
                    )
    
                [1] => Array
                    (
                        [id] => 2367
                        [product_id] => 3
                        [product_name] => 新浪
                        [product_uv] => 1
                        [product_uv_source] => 漂流侠测试APP
                        [product_settle_type] => CPA
                        [date] => 2019-03-19
    */

**4、将前端传过来的参数进行处理，为空的参数去掉**

//php7不支持each（）函数了，改为第二种
    function array_remove_empty_string($arr, $allow = []) {
        $newArr = array();
        while(list($key, $val) = each($arr)) {
            if (is_array($val)){
                $val = array_remove_empty_string($val, $allow);
                if (count($val)!= 0) {
                    $newArr[$key] = $val;
                }
            } elseif (trim($val) != "" || in_array($key, $allow)) {
                $newArr[$key] = $val;
            }
        }
        unset($arr);
        return $newArr;
    }
    
    function array_remove_empty_string($arr, $allow = []) {
        $newArr = array();
        array_walk($arr, function($value, $key, $allow) use (&$newArr){
            if (is_array($value)){
                $value = array_remove_empty_string($value, $allow);
                if (count($value)!= 0) {
                    $newArr[$key] = $value;
                }
            }elseif (trim($value) != "" || in_array($key, $allow)) {
                $newArr[$key] = $value;
            }
        }, $allow);
        unset($arr);
        return $newArr;
    }
    
    $params = array_remove_empty_string($params);
    /*
    Array
    (
        [where] => Array
            (
                [date] => 2019-03-21
            )
    
        [like] => Array
            (
                [product_name] => 
                [product_uv_source] => 
            )
    
        [order_by] => total_valid_uv DESC
        [limit] => Array
            (
                [0] => 30
                [1] => 0
            )
    
    )
    处理后
    Array
    (
        [where] => Array
            (
                [date] => 2019-03-21
            )
    
        [order_by] => total_valid_uv DESC
        [limit] => Array
            (
                [0] => 30
                [1] => 0
            )
    
    )
    
    */

common_helper

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