PHP function putting incorrect
  • in tree hierarchy

Course Queries Syllabus Queries 2 years ago

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Posted on 16 Aug 2022, this text provides information on Syllabus Queries related to Course Queries. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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manpreet Tuteehub forum best answer Best Answer 2 years ago


I am using this function to display UL list:

function getList($arResult){
    $diff = 0;
    foreach($arResult as $result){
        if($lastlevel != $result[depth]){
        if($lastlevel < $result[depth]){
            $html .= "
    \n"; $diff++; } else { $html .= "\n
\n\n"
; $diff--; } } else $html .= "\n"; $html .= "
  • $result[cat_name]"; $lastlevel = $result[depth]; } $html .= str_repeat("
  • \n\n"
    , $diff); return $html; }

    The $arResult contains a tree like this:

    Electronics
      TV
      Video
        Old Movies
        New Movies
        Hollywood
          Old hollywood
          New HollyWood
          Rotten Hollywood
        Other Movies
      Mobile
        Nokia
        Apple
        Micromax
      Laptop
      Other

    The above function prints everything under Electronics->Tv while the truth is that under Electronics there should be TV, Video, Mobile Laptop, Other ..

    This function somehow is putting ul li in incorrect mode.

    The Array Dump is here:

    array(10) {
      [0]=>
      array(6) {
        ["cat_ID"]=>
        string(3) "197"
        ["cat_name"]=>
        string(13) "Student Corner"
        ["cat_nicename"]=>
        string(13) "student-corder"
        ["parent"]=>
        string(1) "0"
        ["post_count"]=>
        string(1) "0"
        ["depth"]=>
        string(1) "0"
      }
      [1]=>
      array(6) {
        ["cat_ID"]=>
        string(3) "198"
        ["cat_name"]=>
        string(6) "GujCET"
        ["cat_nicename"]=>
        string(13) "gujcet-gujrat"
        ["parent"]=>
        string(3) "197"
        ["post_count"]=>
        string(1) "0"
        ["depth"]=>
        
                                                    
                                                    
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    manpreet 2 years ago

    Way too complicated a function. Something along these lines does it:

    function treeList(array $data) {
        $list = '
      '; foreach ($data as $item) { $list .= '
    • '; $list .= $item['name']; if (!empty($item['children'])) { $list .= treeList($item['children']); } $list .= '
    • '
      ; } $list .= '
    '
    ; return $list; } $data = array( array( 'name' => 'Foo', 'children' => array( array( 'name' => 'Bar' ) ) ) ); echo treeList($data);

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