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<?php $arr = [ [ 'id' => 10, 'name' => 'John', 'occupation' => 'engineer', 'points' => 10 ], [ 'id' => 10, 'name' => 'John', 'occupation' => 'librarian', 'points' => 14 ], [ 'id' => 7, 'name' => 'Sarah', 'occupation' => 'artist', 'points' => 21 ], [ 'id' => 7, 'name' => 'Sarah', 'occupation' => 'teacher', 'points' => 17 ], [ 'id' => 10, 'name' => 'John', 'occupation' => 'butcher', 'points' => 7 ], [ 'id' => 7, 'name' => 'Sarah', 'occupation' => 'engineer', 'points' => 9 ], [ 'id' => 25, 'name' => 'Andreea', 'occupation' => 'judge', 'points' => 11 ] ]; $result = []; foreach($arr as $v){ $result[$v["id"]][] = $v; } print_r($result);
Output for 7.1.25 - 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Array ( [10] => Array ( [0] => Array ( [id] => 10 [name] => John [occupation] => engineer [points] => 10 ) [1] => Array ( [id] => 10 [name] => John [occupation] => librarian [points] => 14 ) [2] => Array ( [id] => 10 [name] => John [occupation] => butcher [points] => 7 ) ) [7] => Array ( [0] => Array ( [id] => 7 [name] => Sarah [occupation] => artist [points] => 21 ) [1] => Array ( [id] => 7 [name] => Sarah [occupation] => teacher [points] => 17 ) [2] => Array ( [id] => 7 [name] => Sarah [occupation] => engineer [points] => 9 ) ) [25] => Array ( [0] => Array ( [id] => 25 [name] => Andreea [occupation] => judge [points] => 11 ) ) )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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