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<?php $a = array('foo' => 'bar', 'some' => 'string', 'me' => 'is original'); $b = array(42 => 'answer to the life and everything', 1337 => 'leet', 'me' => 'is overridden'); print_r(array( $a + $b, array_merge($a, $b), array_replace($a, $b) ));
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
Array ( [0] => Array ( [foo] => bar [some] => string [me] => is original [42] => answer to the life and everything [1337] => leet ) [1] => Array ( [foo] => bar [some] => string [me] => is overridden [0] => answer to the life and everything [1] => leet ) [2] => Array ( [foo] => bar [some] => string [me] => is overridden [42] => answer to the life and everything [1337] => leet ) )
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44.96 ms | 408 KiB | 5 Q