Creating select option value list from an array

Question

I have an array like this (stored in the $optDir variable):

Array
(
    [0] => Array
        (
            [id] => 8
            [title] => Atasan Pria
            [idparent] => 5
        )

    [1] => Array
        (
            [id] => 5
            [title] => Fashion
            [idparent] => 0
        )

    [2] => Array
        (
            [id] => 7
            [title] => Motor
            [idparent] => 0
        )

    [3] => Array
        (
            [id] => 6
            [title] => Mobil
            [idparent] => 0
        )

    [4] => Array
        (

            [id] => 9
            [title] => Hem
            [idparent] => 8
        )

)

And i have PHP Codes like this :

function optCatAds($pos=0, $level=0){                   
        global $optDir;  $opt = "";
        $n = count($optDir);
        for($i=0;$i<$n;$i++){           
            $l = $level*3;
            $sign=""; for ($z=0;$z<=$l;$z++){$sign.="&nbsp;";}
            if($optDir[$i]['idparent']==$pos){
            $opt .= '<option value="'.$optDir[$i][id].'">'.$sign.$optDir[$i][title].'</option>';
            optCatAds($optDir[$i][id], $level + 1);
            }
        }                               
        return $opt;
    }

When i call the optCatAds function, give output like below:

<option value="5">Fashion</option>
<option value="6">Mobil</option>
<option value="7">Motor</option>

But, I want to made output like below :

<option value="5">Fashion</option>
<option value="8">  Atasan Pria</option>
<option value="9">    Hem</option>
<option value="6">Mobil</option>
<option value="7">Motor</option>

Conditions :

Fashion, Mobil, Motor <-- parent
Fashion have child Atasan Pria
Atasan Pria have child Hem

Can someone help me? Thank to your help.

this order is based on what ??You can do it manually without loop — Charaf JRA
– Charaf JRA, Commented Dec 17, 2013 at 9:54

Dwza · Accepted Answer · 2013-12-17 11:11:41Z

1

This will work fine for you

$optDir = Array(Array("id"=>8,"title"=>"Atasan Pria","idparent"=>5),
                Array("id"=>5,"title"=>"Fashion","idparent"=>0),
                Array("id"=>7,"title"=>"Motor","idparent"=>0),
                Array("id"=>6,"title"=>"Mobil","idparent"=>0),
                Array("id"=>9,"title"=>"Hem","idparent"=>8)
                );

function optCatAds($pos=0, $level=0)
{                   
    global $optDir;$opt;
    for($i=0;$i<count($optDir);$i++)
    {           
        $l = $level*3;
        $sign="";
        for ($z=0;$z<$l;$z++){$sign.="&nbsp;";}
        if($optDir[$i]['idparent']==$pos)
        {
            $opt .= '<option value="'.$optDir[$i]['id'].'">'.$sign.$optDir[$i]['title'].'</option>';
            $opt .= optCatAds($optDir[$i]['id'], $level + 1);
        }
    }                               
    return $opt;
}

$res = optCatAds($pos=0, $level=0);
echo "<select>{$res}</select>";

edited Dec 17, 2013 at 11:11

answered Dec 17, 2013 at 9:51

Dwza

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2 Comments

Dwza Over a year ago

i just added your level spaces too :)

Dwza Over a year ago

u just forgott to add the $opt .= to your recursiv function line 12 and of course some ' in your code

Krish R · Accepted Answer · 2013-12-17 09:35:50Z

0

Can you try foreach instead of for loop ,

foreach($optDir as $k=>$value){     
    $opt .= '<option value="'.$value->id.'">'.$sign.$value->title.'</option>';      
}

answered Dec 17, 2013 at 9:35

Krish R

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1 Comment

Fredy Over a year ago

I want the order to follow the parent-child structure

Parixit · Accepted Answer · 2013-12-17 09:52:09Z

0

Replace $optDir[$i][title] with $optDir[$i]['title']

and $optDir[$i][id] with $optDir[$i]['id']

Here you are making recursive call so you can not get complete

function optCatAds($pos=0, $level=0){                   
        global $optDir;  $opt = "";
        foreach($optDir as $each){
            if($each['id']==8) $level = 2;
            if($each['id']==9) $level = 3;
            $l = $level*3;
            $sign=""; for($z=0;$z<=$l;$z++){$sign.="&nbsp;";}
            if($each['idparent']==$pos){
                $opt .= '<option value="'.$each['id'].'">'.$sign.$each['title'].'</option>';
            }
        }                               
        return $opt;
    }

edited Dec 17, 2013 at 9:52

answered Dec 17, 2013 at 9:36

Parixit

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2 Comments

Fredy Over a year ago

results remain the same. <option value="5">Fashion</option> <option value="6">Mobil</option> <option value="7">Motor</option>

Fredy Over a year ago

I think it's less effective, how if there are a lot of id's?

Sebastien C. · Accepted Answer · 2013-12-17 11:18:19Z

<?php

$optDir = Array(
    Array(
        'id' => 8,
        'title' => 'Atasan Pria',
        'idparent' => 5
    ),
    Array(
        'id' => 5,
        'title' => 'Fashion',
        'idparent' => 0
    ),
    Array(
        'id' => 7,
        'title' => 'Motor',
        'idparent' => 0
    ),
    Array(
        'id' => 6,
        'title' => 'Mobil',
        'idparent' => 0
    ),
    Array(
        'id' => 9,
        'title' => 'Hem',
        'idparent' => 8
    )
);

function getOptionsRecursive($idParent = 0, $spaces = '') {
    global $optDir;
    $s = '';
    for($i = 0 ; $i < sizeof($optDir) ; $i++) {
        $current = $optDir[$i];
        if($current['idparent'] == $idParent) {
            $s .= '<option value="'.$current['id'].'">'.$spaces.$current['title'].'</option>';
            $s .= getOptionsRecursive($current['id'], $spaces.' ');
        }
    }
    return $s;
};

echo getOptionsRecursive();

?>

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