Displaying Largest Value in PHP Array

Question

I have an array(s) below that are coming from an API I'm working with that I've drilled down to get too, I need to select the one with the biggest filesize and then display all that information. I'm not really understanding some of the other suggestions I've seen here, so I was wondering if somebody could point me in a direction.

Array
(
 [type] => video/mp4
 [height] => 180
 [width] => 320
 [label] => H.264 320px
 [filesize] => 257228869
)
Array
(
 [type] => video/mp4
 [height] => 270
 [width] => 480
 [label] => H.264 480px
 [filesize] => 371518109
)
Array
(
 [type] => video/mp4
 [height] => 406
 [width] => 720
 [label] => H.264 720px
 [filesize] => 494828944
)
Array
(
 [type] => video/mp4
 [height] => 720
 [width] => 1280
 [label] => H.264 1280px
 [filesize] => 1042311723
)

Here's my code to show how I've gotten the above

//Initiate cURL. 
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json' , $authorization )); // Inject the token into the header
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//Execute the request
$result = curl_exec($ch);
 
$json = json_decode($result, TRUE);
$videoids = $json['media'];
foreach ($videoids as $videoid) { 
 //Initiate cURL.
 $ch = curl_init($url3);
 curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json' , $authorization )); // Inject the token into the header
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 //Execute the request
 $result = curl_exec($ch);
 $json = json_decode($result, TRUE);
 
 $playlists = $json['playlist'];
 
 foreach ($playlists as $playlist) {
 $sources = $playlist['sources'];
 
 foreach ($sources as $source) {
 
 if ($source['type'] == "video/mp4") { 
 echo "<pre>";
 print_r($source);
 echo "</pre>";
 }
 }
 
 echo "<br>";
 
 }
 
}

• AbraCadaver: Did you give up?

Answer 1

I would probably sort, but for fun; extract the filesize columns, get the max and search for it in the original array:

$sizes = array_column($array, 'filesize');
$result = $array[array_search(max($sizes), $sizes)];

A sort option:

array_multisort(array_column($array, 'filesize'), SORT_DESC, $array);
$result = $array[0];

Or omit the SORT_DESC to get ascending (if you need that for something) and then:

$result = end($array);

Answer 2

You can sort your array and then just take the first one:

$array = array(
 array( 
 "filesize" => 1234,
 "title" => "item1"
 ),
 array( 
 "filesize" => 12345,
 "title" => "item2"
 ),
 array( 
 "filesize" => 12346,
 "title" => "item3"
 )
 );
 $bsize=0;
 
uasort($array, function ($a, $b) {
 return ($b['filesize'] - $a['filesize']) ;
});
// biggest is $array[0]

Answer 3

I generally like array_reduce. It's simple and clean...

$bigplay = array_reduce($playlists, function($c, $it) {
 if (!$c || $it['filesize'] > $c['filesize'])
 $c = $it;
 return $c; }, []);

$bigplay will have the information about the entry with the biggest filesize (or an empty array if there were no playlists).