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<?php $array = [ [ ['name'=>'John B'], ['age'=>30], ['sizes'=> [ 'weight'=>80, 'height'=>120 ] ] ], [ ['name'=>'Marie B'], ['age'=>31], ['sizes'=> [ 'weight'=>60, 'height'=>110 ] ] ], [ ['name'=>'Carl M'], ['age'=>12], ['sizes'=> [ 'weight'=>70, 'height'=>100 ] ] ], [ ['name'=>'Mike N'], ['age'=>19], ['sizes'=> [ 'weight'=>70, 'height'=>150 ] ] ], [ ['name'=>'Nancy N'], ['age'=>15], ['sizes'=> [ 'weight'=>60, 'height'=>150 ] ] ], [ ['name'=>'Cory X'], ['age'=>15], ['sizes'=> [ 'weight'=>44, 'height'=>150 ] ] ] ]; function method($a,$b) { return ($a[2]["sizes"]["weight"] <= $b[2]["sizes"]["weight"]) ? -1 : 1; } usort($array, "method"); print_r($array); ?>
Output for 5.6.38, 7.0.33, 7.1.25 - 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 ( [0] => Array ( [0] => Array ( [name] => Cory X ) [1] => Array ( [age] => 15 ) [2] => Array ( [sizes] => Array ( [weight] => 44 [height] => 150 ) ) ) [1] => Array ( [0] => Array ( [name] => Marie B ) [1] => Array ( [age] => 31 ) [2] => Array ( [sizes] => Array ( [weight] => 60 [height] => 110 ) ) ) [2] => Array ( [0] => Array ( [name] => Nancy N ) [1] => Array ( [age] => 15 ) [2] => Array ( [sizes] => Array ( [weight] => 60 [height] => 150 ) ) ) [3] => Array ( [0] => Array ( [name] => Carl M ) [1] => Array ( [age] => 12 ) [2] => Array ( [sizes] => Array ( [weight] => 70 [height] => 100 ) ) ) [4] => Array ( [0] => Array ( [name] => Mike N ) [1] => Array ( [age] => 19 ) [2] => Array ( [sizes] => Array ( [weight] => 70 [height] => 150 ) ) ) [5] => Array ( [0] => Array ( [name] => John B ) [1] => Array ( [age] => 30 ) [2] => Array ( [sizes] => Array ( [weight] => 80 [height] => 120 ) ) ) )
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 ( [0] => Array ( [0] => Array ( [name] => Cory X ) [1] => Array ( [age] => 15 ) [2] => Array ( [sizes] => Array ( [weight] => 44 [height] => 150 ) ) ) [1] => Array ( [0] => Array ( [name] => Marie B ) [1] => Array ( [age] => 31 ) [2] => Array ( [sizes] => Array ( [weight] => 60 [height] => 110 ) ) ) [2] => Array ( [0] => Array ( [name] => Nancy N ) [1] => Array ( [age] => 15 ) [2] => Array ( [sizes] => Array ( [weight] => 60 [height] => 150 ) ) ) [3] => Array ( [0] => Array ( [name] => Carl M ) [1] => Array ( [age] => 12 ) [2] => Array ( [sizes] => Array ( [weight] => 70 [height] => 100 ) ) ) [4] => Array ( [0] => Array ( [name] => Mike N ) [1] => Array ( [age] => 19 ) [2] => Array ( [sizes] => Array ( [weight] => 70 [height] => 150 ) ) ) [5] => Array ( [0] => Array ( [name] => John B ) [1] => Array ( [age] => 30 ) [2] => Array ( [sizes] => Array ( [weight] => 80 [height] => 120 ) ) ) )

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182.77 ms | 409 KiB | 183 Q