How to explode multidimensional array with key and value

Question

I have a string like this:

$string = Leader,Brian; Elder,Nina,Maria; Member,Duke,Rai,Mike

What I've done:

$explode = ("; ", $string);

Then it will show like:

Array ([0] => Leader,Brian [1] => Elder,Nina,Maria [2] => Member,Duke,Rai,Mike)

But I don't like that. I want to make a multidimensional array with key and value, like this:

Array ([Leader] => Brian [Elder] => Array ([0] => Nina [1] => Maria) 
       [Member] => Array ([0] => Duke [1] => Rai [2] => Mike))

How to show it in table tag html like this?

Leader  |  Brian
Elder   |  Nina
        |  Maria
Member  |  Duke
        |  Rai
        |  Mike

NB: You can change the separator in string if it's difficult with separator like that

possible duplicate of http://stackoverflow.com/questions/14133780/explode-a-string-to-associative-array — Gokul Shinde, May 11 '16 at 13:42

Jakub Matczak · Accepted Answer · 2016-05-11T13:51:00.207

Youre explode is a good first step.

Next one is to iterate its result and explode it again. Then (in the same loop) use first element of the second explode's result as key and the rest as value.

$string = "Leader,Brian; Elder,Nina,Maria; Member,Duke,Rai,Mike";

$exploded = explode("; ", $string);

foreach($exploded as $element) {
    $arr = explode(',', $element);

    $result[array_shift($arr)] = $arr;
}

var_dump($result);

Result:

array(3) {
  ["Leader"]=>
  array(1) {
    [0]=>
    string(5) "Brian"
  }
  ["Elder"]=>
  array(2) {
    [0]=>
    string(4) "Nina"
    [1]=>
    string(5) "Maria"
  }
  ["Member"]=>
  array(3) {
    [0]=>
    string(4) "Duke"
    [1]=>
    string(3) "Rai"
    [2]=>
    string(4) "Mike"
  }
}

Can you show it's in tag table html, please?. thank you – Stfvns May 11 '16 at 13:52 — Stfvns, May 11 '16 at 13:52

score 1 · Answer 2 · answered May 11 '16 at 13:45

I would probably walk the array after splitting the string and split again:

$list = explode("; ", $string);
array_walk($list, function(&$element) {
    $names = explode(',', $element);
    // Take the first item off the array type
    $type = array_shift($names);
    // Alter the array in-place to create the sub-array
    $element = [$type => $names]
});

score 0 · Answer 3 · answered May 11 '16 at 13:47

You need two "explodes"

$string = 'Leader,Brian; Elder,Nina,Maria; Member,Duke,Rai,Mike';
$explode = explode("; ", $string);
foreach($explode as $row){
    $explode2 = explode(",", $row);
    foreach($explode2 as $i=>$p ){

        echo ( $i > 0 )?"\n\t|":"\n";
        echo $p;
    }
}

Stuart · Answer 4 · 2016-05-11T13:55:04.237

You need to explode twice - on your two delimiters, for example:

<?php
$string = "Leader,Brian; Elder,Nina,Maria; Member,Duke,Rai,Mike";

$result = array();
$parts = explode(";", $string);

foreach ($parts as $part)
{
    $kv = explode(",", $part);
    $result[array_shift($kv)] = $kv;
}

// result:
echo '<pre>';
print_r($result);
echo '</pre>';
?>

Will give you:

Array
(
    [Leader] => Brian
    [Elder] => Nina
    [Member] => Duke
)

score 0 · Answer 5 · answered May 11 '16 at 13:53

This should do it:

<?php
$string = 'Leader,Brian; Elder,Nina,Maria; Member,Duke,Rai,Mike';

$explode = array_map(function($v){return explode(',', $v);}, explode(';', $string));

$new_array = [];

foreach($explode as $k=>$v)
{
    $v[0] = trim($v[0]);

    $new_array[$v[0]] = $v;

    unset($new_array[$v[0]][0]);

    $new_array[$v[0]] = array_values($new_array[$v[0]]);
}

print_r($new_array);

How to explode multidimensional array with key and value

5 Answers5