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<?php $class1 = new stdClass(); $class1->a = 1; $class2 = new stdClass(); $class2->a = 2; $class3 = new stdClass(); $class3->a = 3; $input = [$class3,$class2,$class1]; var_dump($input); usort($input, function($a, $b) { if ($a->a == $b->a) { return 0; } return ($a->a < $b->a) ? -1 : 1; }); var_dump($input);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 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(3) { [0]=> object(stdClass)#3 (1) { ["a"]=> int(3) } [1]=> object(stdClass)#2 (1) { ["a"]=> int(2) } [2]=> object(stdClass)#1 (1) { ["a"]=> int(1) } } array(3) { [0]=> object(stdClass)#1 (1) { ["a"]=> int(1) } [1]=> object(stdClass)#2 (1) { ["a"]=> int(2) } [2]=> object(stdClass)#3 (1) { ["a"]=> int(3) } }
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(3) { [0]=> object(stdClass)#3 (1) { ["a"]=> int(3) } [1]=> object(stdClass)#2 (1) { ["a"]=> int(2) } [2]=> object(stdClass)#1 (1) { ["a"]=> int(1) } } array(3) { [0]=> object(stdClass)#1 (1) { ["a"]=> int(1) } [1]=> object(stdClass)#2 (1) { ["a"]=> int(2) } [2]=> object(stdClass)#3 (1) { ["a"]=> int(3) } }

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