三级分类 like查询查询到很多id 需要找到对应的父级id 并根据父级id组合应该怎么根据父级id将数据组合在一起呢？-php教程-PHP中文网

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三级分类 like查询查询到很多id 需要找到对应的父级id 并根据父级id组合应该怎么根据父级id将数据组合在一起呢？

Aug 04, 2016 am 09:19 AM

php

这是获取到的数据父级id为parent_id

<code>Array
(
    [0] =&gt; Array
        (
            [department_id] =&gt; 1
            [parent_id] =&gt; 0
            [department_code] =&gt; xsb1
            [department_name] =&gt; 销售部1
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [1] =&gt; Array
        (
            [department_id] =&gt; 2
            [parent_id] =&gt; 1
            [department_code] =&gt; xs1q
            [department_name] =&gt; 销售1区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [2] =&gt; Array
        (
            [department_id] =&gt; 3
            [parent_id] =&gt; 2
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [3] =&gt; Array
        (
            [department_id] =&gt; 4
            [parent_id] =&gt; 2
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [4] =&gt; Array
        (
            [department_id] =&gt; 5
            [parent_id] =&gt; 2
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [5] =&gt; Array
        (
            [department_id] =&gt; 6
            [parent_id] =&gt; 2
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [6] =&gt; Array
        (
            [department_id] =&gt; 7
            [parent_id] =&gt; 1
            [department_code] =&gt; xs2q
            [department_name] =&gt; 销售2区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [7] =&gt; Array
        (
            [department_id] =&gt; 8
            [parent_id] =&gt; 7
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [8] =&gt; Array
        (
            [department_id] =&gt; 9
            [parent_id] =&gt; 7
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [9] =&gt; Array
        (
            [department_id] =&gt; 10
            [parent_id] =&gt; 7
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [10] =&gt; Array
        (
            [department_id] =&gt; 11
            [parent_id] =&gt; 7
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [11] =&gt; Array
        (
            [department_id] =&gt; 12
            [parent_id] =&gt; 0
            [department_code] =&gt; xsb2
            [department_name] =&gt; 销售部2
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [12] =&gt; Array
        (
            [department_id] =&gt; 13
            [parent_id] =&gt; 12
            [department_code] =&gt; xs3q
            [department_name] =&gt; 销售3区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [13] =&gt; Array
        (
            [department_id] =&gt; 14
            [parent_id] =&gt; 13
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [14] =&gt; Array
        (
            [department_id] =&gt; 15
            [parent_id] =&gt; 13
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [15] =&gt; Array
        (
            [department_id] =&gt; 16
            [parent_id] =&gt; 13
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [16] =&gt; Array
        (
            [department_id] =&gt; 17
            [parent_id] =&gt; 13
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [17] =&gt; Array
        (
            [department_id] =&gt; 18
            [parent_id] =&gt; 12
            [department_code] =&gt; xs4q
            [department_name] =&gt; 销售4区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [18] =&gt; Array
        (
            [department_id] =&gt; 19
            [parent_id] =&gt; 18
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [19] =&gt; Array
        (
            [department_id] =&gt; 20
            [parent_id] =&gt; 18
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

    [20] =&gt; Array
        (
            [department_id] =&gt; 21
            [parent_id] =&gt; 18
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

    [21] =&gt; Array
        (
            [department_id] =&gt; 22
            [parent_id] =&gt; 18
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

)</code>

登录后复制

这个还是三级分类有可能搜到的是最后一级那还要找俩级怎么去合并啊

回复内容：

这是获取到的数据父级id为parent_id

<code>Array
(
    [0] =&gt; Array
        (
            [department_id] =&gt; 1
            [parent_id] =&gt; 0
            [department_code] =&gt; xsb1
            [department_name] =&gt; 销售部1
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [1] =&gt; Array
        (
            [department_id] =&gt; 2
            [parent_id] =&gt; 1
            [department_code] =&gt; xs1q
            [department_name] =&gt; 销售1区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [2] =&gt; Array
        (
            [department_id] =&gt; 3
            [parent_id] =&gt; 2
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [3] =&gt; Array
        (
            [department_id] =&gt; 4
            [parent_id] =&gt; 2
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [4] =&gt; Array
        (
            [department_id] =&gt; 5
            [parent_id] =&gt; 2
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [5] =&gt; Array
        (
            [department_id] =&gt; 6
            [parent_id] =&gt; 2
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [6] =&gt; Array
        (
            [department_id] =&gt; 7
            [parent_id] =&gt; 1
            [department_code] =&gt; xs2q
            [department_name] =&gt; 销售2区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [7] =&gt; Array
        (
            [department_id] =&gt; 8
            [parent_id] =&gt; 7
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [8] =&gt; Array
        (
            [department_id] =&gt; 9
            [parent_id] =&gt; 7
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [9] =&gt; Array
        (
            [department_id] =&gt; 10
            [parent_id] =&gt; 7
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [10] =&gt; Array
        (
            [department_id] =&gt; 11
            [parent_id] =&gt; 7
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [11] =&gt; Array
        (
            [department_id] =&gt; 12
            [parent_id] =&gt; 0
            [department_code] =&gt; xsb2
            [department_name] =&gt; 销售部2
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [12] =&gt; Array
        (
            [department_id] =&gt; 13
            [parent_id] =&gt; 12
            [department_code] =&gt; xs3q
            [department_name] =&gt; 销售3区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [13] =&gt; Array
        (
            [department_id] =&gt; 14
            [parent_id] =&gt; 13
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [14] =&gt; Array
        (
            [department_id] =&gt; 15
            [parent_id] =&gt; 13
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [15] =&gt; Array
        (
            [department_id] =&gt; 16
            [parent_id] =&gt; 13
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [16] =&gt; Array
        (
            [department_id] =&gt; 17
            [parent_id] =&gt; 13
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [17] =&gt; Array
        (
            [department_id] =&gt; 18
            [parent_id] =&gt; 12
            [department_code] =&gt; xs4q
            [department_name] =&gt; 销售4区
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [18] =&gt; Array
        (
            [department_id] =&gt; 19
            [parent_id] =&gt; 18
            [department_code] =&gt; xs1ks
            [department_name] =&gt; 销售1科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039207
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039207
            [edit_user_id] =&gt; 1
        )

    [19] =&gt; Array
        (
            [department_id] =&gt; 20
            [parent_id] =&gt; 18
            [department_code] =&gt; xs2ks
            [department_name] =&gt; 销售2科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

    [20] =&gt; Array
        (
            [department_id] =&gt; 21
            [parent_id] =&gt; 18
            [department_code] =&gt; xs3ks
            [department_name] =&gt; 销售3科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

    [21] =&gt; Array
        (
            [department_id] =&gt; 22
            [parent_id] =&gt; 18
            [department_code] =&gt; xs4ks
            [department_name] =&gt; 销售4科室
            [department_phone] =&gt; 
            [department_cornet] =&gt; 
            [department_description] =&gt; 
            [department_sort] =&gt; 0
            [is_delete] =&gt; 1
            [department_status] =&gt; 1
            [add_time] =&gt; 1470039208
            [add_user_id] =&gt; 1
            [edit_time] =&gt; 1470039208
            [edit_user_id] =&gt; 1
        )

)</code>

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这个还是三级分类有可能搜到的是最后一级那还要找俩级怎么去合并啊

只想到用foreach 将相同父id的数据放到同一个以parent_id为key的数组内，如果要父级信息的话还可以进行次逻辑判断

<code>$result =[]

foreach($list as $key =&gt; $val){
    if($val['parent_id'] != 0) {
         $result[$val['parent_id']][] = $val;
    }
}
</code>

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1、增加一个path字段，表示从根节点到叶子节点的路径比如 1.3.7

要求是搜索然后找出搜索结果的所有父级和子集树状图显示关键字标红

我的做法是
1.创建新数组用来保存所有需要展示的数据的id 初始数据为查询到的id
2.先根据查询id找到所有父级放在新数组
3.根据id查询所有子集id 这里可能是多个我是循环用array_unshift 放进新数组
4.给新数组的id去重（我这里最终组合的是一个一维数组）
5.循环数组id查询所有数据
6.进行分类组合

感谢回答的朋友有更好的办法请分享出来哈哈

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