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<?php $test = array('key1'=>'value'); $test[] = array('key2' => 'val2', array('key3' => 'val3', 'key4' => 'val4')); var_dump($test);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(2) { ["key1"]=> string(5) "value" [0]=> array(2) { ["key2"]=> string(4) "val2" [0]=> array(2) { ["key3"]=> string(4) "val3" ["key4"]=> string(4) "val4" } } }
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(2) { ["key1"]=> string(5) "value" [0]=> array(2) { ["key2"]=> string(4) "val2" [0]=> array(2) { ["key3"]=> string(4) "val3" ["key4"]=> string(4) "val4" } } }

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