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<?php $toSort = array( 1 => [ 'value' => 8000, 'key' => 1007 ], 2 => [ 'value' => 8001, 'key' => 1007 ], 3 => [ 'value' => 8002, 'key' => 1013 ], ); var_export( array_reduce( $toSort, function($result, $row) { $result[$row['key']][] = $row['value']; return $result; }, [] ) );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
array ( 1007 => array ( 0 => 8000, 1 => 8001, ), 1013 => array ( 0 => 8002, ), )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 1007 => array ( 0 => 8000, 1 => 8001, ), 1013 => array ( 0 => 8002, ), )
preferences:
107.12 ms | 402 KiB | 158 Q