版权声明: https://blog.csdn.net/gwz1196281550/article/details/80811561
/** * 将一个二维数组,以其中一列为KEY,一列为VALUE,返回一个一维数组 * @param array $array * @param null $column_key * @param $index_key * @throws \Exception * @return array */ public static function arrayColumn($array, $column_key, $index_key = null) { if (!is_array($array) && !($array instanceof \ArrayAccess)) throw new \Exception('Argument 1 passed to Tool_ArrayGroupBy::::arrayColumn() must be of the type array'); if (function_exists('array_column ')) { return array_column($array, $column_key, $index_key); } $result = []; foreach ($array as $arr) { if (!is_array($arr) && !($arr instanceof \ArrayAccess)) continue; if (is_null($column_key)) { $value = $arr; } else { $value = $arr[$column_key]; } if (!is_null($index_key)) { $key = $arr[$index_key]; $result[$key] = $value; } else { $result[] = $value; } } return $result; }