PHP: How to modify dynamic multidimensional array

Question

I have a function that user can create treeview hierarchy dynamically. So everytime user create a new treeview I got a different set of array one of example is like this. So I after user done creating of treeview then click submit I just directly pass the object property from js to php I can't change the data from js because its plugin vue-jstree so what I'm planning is to change it in php. However, its not fix set of array that I could tell whether its only a 2 forloop. What logic to remove or Edit all those keys even how deep it is

I don't get it. What is the question/problem? Can you show an expected output? — Andreas, Dec 20 '17 at 08:18
@Andreas sorry not good in english. By generalization I need to change all those array key like removing the `[text][icon]['opened'] ` and remain only the id and value — BGTabulation BGTabulate, Dec 20 '17 at 08:24
You want to save only id and value fields in every sub-array? — splash58, Dec 20 '17 at 09:00

score 1 · Answer 1 · answered Dec 20 '17 at 09:01

You can use RECURSIVE function to do this like below,

$array = array("id" => "value1", "value" => "Test", "text" => "Test", "loading" => "100", "children" => array("id" => "value1","value" => "Test","text" => "Test","loading" => "100","children" => array("id" => "value1", "value" => "Test",)));

$keys = ["text", "loading"]; //add all keys which are you want to remove
//we loop all keys and run arrayRemove function over each key here
foreach($keys as $key){
  arrayRemove($array, $key);
}

function arrayRemove(&$array, $key) {
   unset($array[$key]);
   foreach ($array as &$value) {
      if (is_array($value)) {
         arrayRemove($value, $key);
      }
   }
}

My array will be different from your one, anyway this will do your work :) and result will be like below,

Array ( [id] => value1 [value] => Test [children] => Array ( [id] => value1 [value] => Test [children] => Array ( [id] => value1 [value] => Test ) ) )

score 0 · Answer 2 · answered Dec 20 '17 at 08:56

You could use this

<?php 
    for ($i=0; $i < count($yourArray); $i++) { 
        unset($yourArray[$i]['text']);
        unset($yourArray[$i]['icon']);
        unset($yourArray[$i]['opened']);
    }

    // then display to check
    var_dump($yourArray);

?>

score 0 · Answer 3 · answered Dec 20 '17 at 09:28

I see your code and try to solve your problem. Here is very simple recursion process which can help to solve your problem. Just see my code and try to find your desire way.

<?php
$data = array(
        array('id'=>1,'text'=>'hi-flyer','icon'=>'fa fa-user','opened'=>1,'selected'=>1,'disabled','loading','children'=>array()),
        array('id'=>2,'text'=>'hi-flyer','icon'=>'fa fa-user','opened'=>1,'selected'=>1,'disabled','loading','children'=>array(array('id'=>4,'text'=>'hi-flyer','icon'=>'fa fa-user','opened'=>1,'selected'=>1,'disabled','loading','children'=>array()),array('id'=>5,'text'=>'hi-flyer','icon'=>'fa fa-user','opened'=>1,'selected'=>1,'disabled','loading','children'=>array()))),
        array('id'=>3,'text'=>'hi-flyer','icon'=>'fa fa-user','opened'=>1,'selected'=>1,'disabled','loading','children'=>array())
);
$data = change_text_using_id(1,$data,"Hello world!");
print_all_id_text($data);


function change_text_using_id($id,$data,$text){
    for($i=0;$i<count($data);$i++){
        if($id == $data[$i]['id']){
            $data[$i]['text'] = $text;
            echo "success<br>";
        }else if(count($data[$i]['children'])>0){
            $data[$i]['children'] = change_text_using_id($id,$data[$i]['children'],$text);
        }
    }

    return $data;
}
function print_all_id_text($data){
    for($i=0;$i<count($data);$i++){
        echo "ID==> ".$data[$i]['id']." And Text==> ".$data[$i]['text'].'<br>';
        if(count($data[$i]['children'])>0){
            print_all_id_text($data[$i]['children']);
        }
    }
}

?>

Thank you. I think you found your answer. Happy coding :D

PHP: How to modify dynamic multidimensional array

3 Answers3