Show All Data list of multidimensional array Using Foreach Loop

Question

Here is The My Array Code...

$data = array(
            'data_1',
            'data_2',
            'data_3',
            'data_4',
            'data_5' => array(
                            'data_5_1',
                            'data_5_2'
                        )
);

i Want to Ountput Like The : -

data_1
data_2
data_3
data_4
data_5
    data_5_1
    data_5_2

Here is My Code I try to Self But I Show Error

foreach($data as $da){ 
     echo $da."<br>";
}

Error Found Like This

data_1
data_2
data_3
data_4
Notice: Array to string conversion in filename.php on line 3
Array

Please Fix this problem & Use echo not print_r

Possible duplicate of Reference - What does this error mean in PHP? — Pinke Helga
– Pinke Helga, Commented Mar 6, 2019 at 7:09

Nick · Accepted Answer · 2019-03-06 07:08:09Z

2

This is best achieved with a recursive function so that you can deal with any level of nested arrays:

function display_list($array) {
    foreach ($array as $k => $v) {
        if (is_array($v)) {
            echo "$k\n";
            display_list($v);
        }
        else {
            echo "$v\n";
        }
    }
}
display_list($data);

Output:

data_1
data_2
data_3 
data_4 
data_5 
data_5_1 
data_5_2

Demo on 3v4l.org

answered Mar 6, 2019 at 7:08

Nick

147k23 gold badges67 silver badges106 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

sanjay joon Over a year ago

if I want Drop Down of The list Like i Select data_5 then show data_5_1 data_5_2

Nick Over a year ago

@sanjayjoon I suggest you take a look at stackoverflow.com/questions/11747156/… or stackoverflow.com/questions/43976836/…

Pinke Helga · Accepted Answer · 2019-03-06 07:21:36Z

1

You could use iterators:

foreach(new RecursiveIteratorIterator(new RecursiveArrayIterator($data)) as $item)
  echo "$item<br>", PHP_EOL;

As asked in comments, if you want either the key or value depending on type, you can use the flag SELF_FIRST and the ternary operator:

foreach(new RecursiveIteratorIterator(new RecursiveArrayIterator($data), RecursiveIteratorIterator::SELF_FIRST) as $key => $item)
  echo (is_scalar($item) ? $item : $key) . '<br>', PHP_EOL;

edited Mar 6, 2019 at 7:21

answered Mar 6, 2019 at 7:13

Pinke Helga

6,7622 gold badges25 silver badges46 bronze badges

3 Comments

Nick Over a year ago

This is pretty cool, but it doesn't print out the data_5 key value...

Pinke Helga Over a year ago

@Nick I've added a version also showing keys when the item is an array.

Nick Over a year ago

Looks good now, although it lost some of the nice cleanness that the first version had. pity...

sanjay joon · Accepted Answer · 2019-03-06 08:28:43Z

0

foreach ($data as $val) {
    if(is_array($val)){
        foreach ($val as $row) {
            echo "<br>&nbsp;&nbsp;&nbsp;&nbsp;".$row;
        }
    }
    else{ 
         echo "<br>".$val;
    }
}

edited Mar 6, 2019 at 8:28

sanjay joon

1331 silver badge15 bronze badges

answered Mar 6, 2019 at 7:24

devil

244 bronze badges

1 Comment

sanjay joon Over a year ago

data_5 Not Found in Output

Collectives™ on Stack Overflow

Show All Data list of multidimensional array Using Foreach Loop

3 Answers 3

2 Comments

3 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

3 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related