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<?php $foo = ["bar" => ["baz" => [ "A" => 0, "B" => 1, "C" => 2, ]]]; var_dump($foo); $foo["bar"]["baz"] = ["Title" => "C"]; var_dump($foo); $foo["bar"]["baz"]["Title"] = "D"; var_dump($foo);
Output for 5.6.0 - 5.6.29, 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(1) { ["bar"]=> array(1) { ["baz"]=> array(3) { ["A"]=> int(0) ["B"]=> int(1) ["C"]=> int(2) } } } array(1) { ["bar"]=> array(1) { ["baz"]=> array(1) { ["Title"]=> string(1) "C" } } } array(1) { ["bar"]=> array(1) { ["baz"]=> array(1) { ["Title"]=> string(1) "D" } } }
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(1) { ["bar"]=> array(1) { ["baz"]=> array(3) { ["A"]=> int(0) ["B"]=> int(1) ["C"]=> int(2) } } } array(1) { ["bar"]=> array(1) { ["baz"]=> array(1) { ["Title"]=> string(1) "C" } } } array(1) { ["bar"]=> array(1) { ["baz"]=> array(1) { ["Title"]=> string(1) "D" } } }

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