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<?php $events = array( // Sept 10 2018 array( 2018 => array( 9 => array( 10 => array( 'event01', 'event01b', ) ) ) ), // Sept 20 2018 array( 2018 => array( 9 => array( 20 => array( 'event02' ) ) ) ), // Oct 5 2019 array( 2018 => array( 10 => array( 5 => array( 'event03' ) ) ) ) ); $merged = array_replace_recursive(...$events); print_r($merged);
Output for 5.6.38, 7.1.0 - 7.1.25, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [2018] => Array ( [9] => Array ( [10] => Array ( [0] => event01 [1] => event01b ) [20] => Array ( [0] => event02 ) ) [10] => Array ( [5] => Array ( [0] => event03 ) ) ) )
preferences:
108.67 ms | 1599 KiB | 4 Q