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<?php class test { protected $val; public function __construct($val) { $this->val = $val; } public function getVal() { return $this->val; } } $arr = array( 'one' => new test(53), 'two' => new test(200), 'three' => new test(100) ); uasort($arr, function (test $a, test $b) { echo 'comparing '.$a->getVal().' with '.$b->getVal(); if ($a->getVal() == $b->getVal()) { return 0; } return ($a->getVal() < $b->getVal()) ? -1 : 1; }); print_r($arr);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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 - 8.3.6
comparing 53 with 200comparing 200 with 100comparing 53 with 100Array ( [one] => test Object ( [val:protected] => 53 ) [three] => test Object ( [val:protected] => 100 ) [two] => test Object ( [val:protected] => 200 ) )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
comparing 200 with 53comparing 100 with 200comparing 53 with 100Array ( [one] => test Object ( [val:protected] => 53 ) [three] => test Object ( [val:protected] => 100 ) [two] => test Object ( [val:protected] => 200 ) )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/DAlXv on line 21
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/DAlXv on line 21
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/DAlXv on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/DAlXv on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/DAlXv on line 4
Process exited with code 255.

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