golang（ 实现PHP Array 函数 array_column，array_keys, in_array ）

package Util

func InArray(s interface{}, d map[string]string) int {
    for _, v := range d {
        if s == v {
            return 1
        }
    }
    return 0
}

func ArrayKeys(s string, d map[string]string) int {
    for k, _ := range d {
        if s == d {
            return true
        }
    }
    return false
}

func ArrayColumn(d map[int]map[string]string, column_key string, index_key string) map[int]map[string]string {
    nd := make(map[int]map[string]string)
    for k, v := range d {
        for e, q := range v {
            if e == index_key {
                nd[k][index_key] = q
            }
        }
    }
    return nd
}