如何添加一個數組值的使用數組推動功能php

Question

我想解決這個分支樹搜索，我想收集1個變量數組中的分支的所有值，並且問題是，分支函數返回當有很多值時，只有2個值，實際上我使用的是Codeigniter。

這是我的父功能：

$data['left'] = array(); 
    $data['right'] = array(); 
    $c=array(); 
    foreach ($root as $r){ 
     if ($r->branch_status=="L"){ 
      array_push($data['left'], array($r->member_id, $r->member_name, $r->member_phone)); 
      $c = $this->branch($r->member_id); 
      for ($i=0; $i<count($c); $i++){ 
       echo "array member : ".$c[$i][0]."<br>"; 
      } 
     } else if ($r->branch_status="R"){ 
      array_push($data['right'], array($r->member_id, $r->member_name, $r->member_phone)); 
      $c = $this->branch($r->member_id); 
      for ($i=0; $i<count($c); $i++){ 
       echo "array member : ".$c[$i][0]."<br>"; 
      } 
     } 
    } 

，這是我的分支功能：

public function branch($id){ 
    $br = array(); 
    $branch = $this->M_member->member($id); 
    foreach ($branch as $b){ 
     if (empty($b)){ 
      echo "empty member"; 
     } else{ 
      array_push($br,array($b->member_id,$b->member_phone)); 
      $this->branch($b->member_id); 
     } 
    } 
    for ($i=0; $i<count($br); $i++){ 
     echo "array member : ".$br[$i][0]." phone : ".$br[$i][1]."<br>"; 
    } 
    return $br; 
} 

Answer 1

的主要原因是$ BR分支函數的局部聲明。這應該工作

public function branch($id, &$br=array()){ 

    $branch = $this->M_member->member($id); 

    foreach ($branch as $b){ 
     if (empty($b)){ 
      echo "empty member"; 
     } else{ 
      //array_push($br,array($b->member_id,$b->member_phone)); 
      $br[] = array($b->member_id,$b->member_phone); 
      $this->branch($b->member_id, $br); 
     } 
    } 
    return $br; 
}