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<?php $myData = array( array('key2' => 'value1', 'key3' => 'value1', 'key4' => 'value4'), array('key4' => 'value4'), array('key1' => 'value1', 'key4' => 'value4'), array('key1' => 'value1', 'key2' => 'value1', 'key3' => 'value1', 'key4' => 'value4') ); usort($myData, function ($a, $b) { return count($b) - count($a); }); print_r($myData);
Output for 7.2.0 - 7.2.34, 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 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Array ( [0] => Array ( [key1] => value1 [key2] => value1 [key3] => value1 [key4] => value4 ) [1] => Array ( [key2] => value1 [key3] => value1 [key4] => value4 ) [2] => Array ( [key1] => value1 [key4] => value4 ) [3] => Array ( [key4] => value4 ) )
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 ( [key1] => value1 [key2] => value1 [key3] => value1 [key4] => value4 ) [1] => Array ( [key2] => value1 [key3] => value1 [key4] => value4 ) [2] => Array ( [key1] => value1 [key4] => value4 ) [3] => Array ( [key4] => value4 ) )

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110.81 ms | 403 KiB | 185 Q