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<?php $arrays = [ 252 => [ 0 => [ "id" => 2929850, "titulo" => " Film 1" ], 1 => [ "id" => 2929848, "titulo" => "Film 2" ] ], 251 => [ 0 => [ "id" => 2929796, "titulo" => "Film 3" ], 1 => [ "id" => 2929795, "titulo" => "Film 4" ] ] ]; $result = []; foreach ($arrays as $key => $array) { $result[$key] = array_keys($array); } print_r($result);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 ( [252] => Array ( [0] => 0 [1] => 1 ) [251] => Array ( [0] => 0 [1] => 1 ) )
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 ( [252] => Array ( [0] => 0 [1] => 1 ) [251] => Array ( [0] => 0 [1] => 1 ) )

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254.79 ms | 402 KiB | 287 Q