PHP - How I can build a array from other 2 arrays?

Question

I try to explain myself:

I have 2 arrays, one of them is it:

Array(
[0] => 01/09/2014
[1] => 02/09/2014
[2] => 03/09/2014
[3] => 04/09/2014
[4] => 05/09/2014
[5] => 06/09/2014
[6] => 07/09/2014
[7] => 08/09/2014
[8] => 09/09/2014
[9] => 10/09/2014
[10] => 11/09/2014
[11] => 12/09/2014
[12] => 13/09/2014
[13] => 14/09/2014
[14] => 15/09/2014
[15] => 16/09/2014
[16] => 17/09/2014
[17] => 18/09/2014
[18] => 19/09/2014
[19] => 20/09/2014
[20] => 21/09/2014
[21] => 22/09/2014
[22] => 23/09/2014
[23] => 24/09/2014
[24] => 25/09/2014
[25] => 26/09/2014
[26] => 27/09/2014
[27] => 28/09/2014
[28] => 29/09/2014
[29] => 30/09/2014
)

And the other is:

Array(
[12/09/2014] => Array
    (
        [0] => 17:41:54
        [1] => 17:42:21
        [2] => 17:42:47
        [3] => 17:43:21
        [4] => 17:47:24
        [5] => 17:47:40
        [6] => 17:48:09
        [7] => 17:48:27
        [8] => 18:09:21
        [9] => 18:55:22
        [10] => 20:22:02
        [11] => 23:36:22
        [12] => 23:42:39
        [13] => 17:59:25
    )

[15/09/2014] => Array
    (
        [0] => 13:02:29
    )

[23/09/2014] => Array
    (
        [0] => 9:55:56
        [1] => 10:25:01
    )

[26/09/2014] => Array
    (
        [0] => 9:09:24
        [1] => 9:15:30
        [2] => 10:39:49
        [3] => 19:53:40
    )

[29/09/2014] => Array
    (
        [0] => 8:28:46
    )

[30/09/2014] => Array
    (
        [0] => 8:16:54
        [1] => 10:06:02
        [2] => 10:11:32
        [3] => 14:16:07
        [4] => 16:25:02
    )

[01/10/2014] => Array
    (
        [0] => 8:28:23
        [1] => 9:12:22
        [2] => 9:15:38
        [3] => 10:25:23
    )

I need to build other when if the second array index matches with some first array elements, put the subelements (times), if not, put "There aren't results" o something like this.

Understand?

Example:

Array
(
[01/09/2014] => Array
    (
        [0] => "There aren't results"

    )

[02/09/2014] => Array
    (
        [0] => "There aren't results"
    )

[03/09/2014] => Array
    (
        [0] => "There aren't results"
    )

.
.
.
 [12/09/2014] => Array
    (
         [0] => 17:41:54
         [1] => 17:42:21
         [2] => 17:42:47
         [3] => 17:43:21
         [4] => 17:47:24
         [5] => 17:47:40
         [6] => 17:48:09
         [7] => 17:48:27
         [8] => 18:09:21
         [9] => 18:55:22
         [10] => 20:22:02
         [11] => 23:36:22
         [12] => 23:42:39
         [13] => 17:59:25
    )

 [13/09/2014] => Array
    (
          [0] => "There aren't results"
    )

hsz · Accepted Answer · 2014-12-04 10:59:19Z

2

Just try with array_fill_keys with default value and merge it with data array:

$dates = array(
    '01/09/2014',
    '02/09/2014',
    '03/09/2014',
    '04/09/2014',
);

$times = array(
    '02/09/2014' => array(
        '14:41:54',
        '17:41:54',
    ),
    '04/09/2014' => array(
        '11:41:54',
    ),
);

$output = $times + array_fill_keys($dates, array("There aren't results"));
ksort($output);

var_dump($output);

Output:

array (size=4)
  '01/09/2014' => 
    array (size=1)
      0 => string 'There aren't results' (length=20)
  '02/09/2014' => 
    array (size=2)
      0 => string '14:41:54' (length=8)
      1 => string '17:41:54' (length=8)
  '03/09/2014' => 
    array (size=1)
      0 => string 'There aren't results' (length=20)
  '04/09/2014' => 
    array (size=1)
      0 => string '11:41:54' (length=8)

answered Dec 4, 2014 at 10:59

hsz

153k63 gold badges268 silver badges320 bronze badges

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

2 Comments

RichardBernards Over a year ago

Nice and elegant solution!

Jessica MC Over a year ago

I like the solution by RichardBernards and now I can hardly understand this solution, but he said it's better than his solution, so, I think telling the truth hehe. Thanks for all answers, it's amazing the quickly of your answers. I'm really impressed...

RichardBernards · Accepted Answer · 2014-12-04 10:58:21Z

1

A possible answer could be the following:

<?php

$dates = array();
$information = array();
$result = array();

foreach($dates as $date) {
    if(array_key_exists($date, $information)) {
        $result[$date] = $information[$date];
    } else {
        $result[$date] = array('There aren\'t any results');
    }
}

Ofcourse you'll have to change $dates to your first array and $information to your second array...

answered Dec 4, 2014 at 10:58

RichardBernards

3,0971 gold badge24 silver badges30 bronze badges

3 Comments

Jessica MC Over a year ago

It's just what I wanted...Thanks... It was so easy and I couldn't see it haha.

RichardBernards Over a year ago

Please also look at the solution provided by @hsz, although it's less readable for beginners, it's the more elegant solution to your problem =)

Jessica MC Over a year ago

Yes, I did. But I think your solution is enough for me :)

Girish · Accepted Answer · 2014-12-04 10:58:10Z

1

Try this code

$first_arr = array();
$second_arr = array();
$new_array = array();

foreach($first_arr as $key => $value){
  if(isset($second_arr[$value])){
    $new_array[$key] = $second_arr[$value];
  }else{
    $new_array[$key] = array("There aren't results");
  }
}

answered Dec 4, 2014 at 10:58

Girish

12.1k3 gold badges37 silver badges54 bronze badges

Comments

Alexander Guz · Accepted Answer · 2014-12-04 11:01:51Z

1

You can use array_map:

$combined = array_map(function($value) use ($secondArray) {
    if (array_key_exists($value, $secondArray)) {
        return array(
            $value => $secondArray[$value],
        );
    } else {
        return array(
            $value => "There aren't results",
        );
    }
}, $firstArray);

answered Dec 4, 2014 at 11:01

Alexander Guz

1,36412 silver badges33 bronze badges

Comments

Ankur Bhadania · Accepted Answer · 2014-12-04 11:04:28Z

1

$newA=array();  
foreach ($firstA as $fa)
{
    if(array_key_exists($fa,$secoundA))
    {

        $newA[$fa]=$secoundA[$fa];
    }
    else
    {
        $newA[$fa]="There aren't results";
    }

}
print_r($newA);

edited Dec 4, 2014 at 11:04

answered Dec 4, 2014 at 10:59

Ankur Bhadania

4,1681 gold badge25 silver badges40 bronze badges

Collectives™ on Stack Overflow

PHP - How I can build a array from other 2 arrays?

5 Answers 5

2 Comments

3 Comments

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

2 Comments

3 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related