Eine dreistufige Klassifizierung wie eine Abfrage fragt viele IDs ab und muss die entsprechende übergeordnete ID finden und diese basierend auf der übergeordneten ID kombinieren. Wie sollen die Daten basierend auf der übergeordneten ID kombiniert werden?

Dies sind die erhaltenen Daten. Die Eltern-ID ist parent_id

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

)</code>

Dies ist immer noch eine dreistufige Klassifizierung. Es ist möglich, dass es zwei weitere Ebenen gibt

Antwortinhalt:

Dies sind die erhaltenen Daten. Die Eltern-ID ist parent_id

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

)</code>

Dies ist immer noch eine dreistufige Klassifizierung. Es ist möglich, dass es zwei weitere Ebenen gibt

Ich denke nur daran,

zu verwenden, um Daten mit derselben übergeordneten ID in dasselbe Array mit parent_id als Schlüssel einzufügen. Wenn Sie übergeordnete Informationen benötigen, können Sie auch eine sekundäre logische Beurteilung vornehmen

foreach

<code>$result =[]

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

1. Fügen Sie ein Pfadfeld hinzu, um den Pfad vom Wurzelknoten zum Blattknoten darzustellen, z. B. 1.3.7

Die Anforderung besteht darin, alle übergeordneten Elemente und Teilmengen der Suchergebnisse zu suchen und dann zu finden. Das Baumdiagramm zeigt die Schlüsselwörter in Rot an

Mein Ansatz ist

1. Erstellen Sie ein neues Array, um die IDs aller anzuzeigenden Daten zu speichern.

Suchen Sie zunächst alle Eltern entsprechend der Abfrage ID und füge sie in das neue Array ein
3. Fragen Sie alle Teilmengen-IDs basierend auf der ID ab. Es können mehrere IDs vorhanden sein. Ich verwende array_unshift, um sie in ein neues Array einzufügen
4 des neuen Arrays (was ich hier schließlich kombiniert habe, ist ein eindimensionales Array)
Array-ID schleifen, um alle Daten abzufragen
6
Danke für die Antwort, wenn du einen besseren Weg hast, teile ihn bitte.