How can I sort an array on based number?

Question

I have an array whith the following content:

array (size=5)
  0 => 
    array (size=3)
      0 => string '1' (length=1)
      1 => string 'https://www.facebook.com' (length=24)
      2 => string '4' (length=1)    // order number
  1 => 
    array (size=3)
      0 => string '1' (length=1)
      1 => string 'https://www.twiiter.com' (length=23)
      2 => string '7' (length=1)   // order number
  2 => 
    array (size=3)
      0 => string '1' (length=1)
      1 => string 'https://www.instagram.com' (length=25)
      2 => string '9' (length=1)   // order number
  3 => 
    array (size=3)
      0 => string '1' (length=1)
      1 => string 'https://www.linkedin.com' (length=24)
      2 => string '2' (length=1)  // order number
  4 => 
    array (size=3)
      0 => string '1' (length=1)
      1 => string 'https://www.pinterest.com' (length=25)
      2 => string '1' (length=1)  // order number

I want to sort this array based on the number in the above code. (where is a written comment).

How can I do this?

So far I have written the following code but I do not know how to make it properly.

$arrMerge = array_merge($facebookURL, $twitterURL, $instagramURL, $linkedinURL, $pinterestURL);
$splitArr = array_chunk($arrMerge, 3);

check this thread https://stackoverflow.com/questions/2699086/how-to-sort-multi-dimensional-array-by-value — Giacomo M, Jul 09 '19 at 10:25

Rakesh Jakhar · Accepted Answer · 2019-07-09T10:33:40.203

3

You can use array_multisort with array_column

array_multisort(array_column($arr, 2), SORT_ASC,$arr)

You can use SORT_ASC OR SORT_DESC as you required

Live DEMO

edited Jul 09 '19 at 10:33

answered Jul 09 '19 at 10:26

Rakesh Jakhar

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array_multisort return boolean, how can I display the values from this array into var_dump() function? – Cristi Jul 09 '19 at 10:29
@Cristi you can use the same array variable to`print_r` or `var_dump` i.e. `print_r($arr)` – Rakesh Jakhar Jul 09 '19 at 10:30

score 1 · Answer 2 · answered Jul 09 '19 at 10:30

You can use usort.

usort($data, function($a, $b) {
    return $a[2] - $b[2];
});

You might also want to type-cast the result to an integer before-hand as it looks like your data is treated as a string.

usort($data, function($a, $b) {
    return (int)$a[2] - (int)$b[2];
});

This is also a possible duplicate of this question.

How can I sort an array on based number?

2 Answers2