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<?php const REQUIRED = 1; const OPTIONAL = 2; const IS_ARRAY = 4; $args = [ 'a' => [IS_ARRAY], 'b' => [OPTIONAL], 'c' => [REQUIRED], 'd' => [REQUIRED] ]; uasort( $args, function ($a, $b) { if ($a[0] & IS_ARRAY === IS_ARRAY) { echo "a is array\n"; return -1; } if ($b[0] & IS_ARRAY === IS_ARRAY) { echo "b is array\n"; return 1; } if ($a[0] & OPTIONAL === OPTIONAL) { echo "a is optional\n"; return -1; } if ($b[0] & OPTIONAL === OPTIONAL) { echo "b is optional\n"; return 1; } return 0; } ); var_dump($args);
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
b is array b is array b is array b is array a is array array(4) { ["c"]=> array(1) { [0]=> int(1) } ["d"]=> array(1) { [0]=> int(1) } ["a"]=> array(1) { [0]=> int(4) } ["b"]=> array(1) { [0]=> int(2) } }
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 b is array b is array b is array b is array a is array array(4) { ["c"]=> array(1) { [0]=> int(1) } ["d"]=> array(1) { [0]=> int(1) } ["a"]=> array(1) { [0]=> int(4) } ["b"]=> array(1) { [0]=> int(2) } }

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