<?php
$arr = [
(object) [
"book" => "book 1",
"n_ano" => "2013",
],
(object) [
"book" => "book 2",
"n_ano" => "2012",
],
(object) [
"book" => "book 3",
"n_ano" => "2013",
],
];
foreach($arr as $v)
$data[$v->n_ano][] = $v->book;
foreach($data as $n_ano => $books) {
echo $n_ano . "<br>";
foreach($books as $book)
echo " - " . $book . "<br>";
}
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
- 2013<br> - book 1<br> - book 3<br>2012<br> - book 2<br>
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/hl0qf on line 3
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected '[' in /in/hl0qf on line 3
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/hl0qf on line 3
Process exited with code 255.
preferences:
278.33 ms | 403 KiB | 466 Q