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<?php $arr=array( "0"=> array( 0=> array ( "ID"=> 118, "post_date"=> "2014-04-28 07:27:37", "post_title"=> "Title 1" ), 1=> array ( "ID"=> 119, "post_date"=> "2014-04-29 07:27:37", "post_title"=> "title 2" ) ), "1"=> array( 0=> array ( "ID"=> 135, "post_date"=> "2014-04-28 06:37:37", "post_title"=> "Title 3" ), 1=> array ( "ID"=> 148, "post_date"=> "2014-04-25 07:27:37", "post_title"=> "Title 4" ) ), "2"=> array( 0=> array ( "ID"=> 135, "post_date"=> "2014-04-24 06:37:37", "post_title"=> "Title 5" ), 1=> array ( "ID"=> 148, "post_date"=> "2014-04-25 09:21:37", "post_title"=> "Title 6" ) ) ); usort($arr); print_r($arr);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: usort() expects exactly 2 arguments, 1 given in /in/BWTC4:40 Stack trace: #0 /in/BWTC4(40): usort(Array) #1 {main} thrown in /in/BWTC4 on line 40
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: usort() expects exactly 2 parameters, 1 given in /in/BWTC4 on line 40 Array ( [0] => Array ( [0] => Array ( [ID] => 118 [post_date] => 2014-04-28 07:27:37 [post_title] => Title 1 ) [1] => Array ( [ID] => 119 [post_date] => 2014-04-29 07:27:37 [post_title] => title 2 ) ) [1] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-28 06:37:37 [post_title] => Title 3 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 07:27:37 [post_title] => Title 4 ) ) [2] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-24 06:37:37 [post_title] => Title 5 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 09:21:37 [post_title] => Title 6 ) ) )
Output for 5.2.3 - 5.2.17
Warning: Wrong parameter count for usort() in /in/BWTC4 on line 40 Array ( [0] => Array ( [0] => Array ( [ID] => 118 [post_date] => 2014-04-28 07:27:37 [post_title] => Title 1 ) [1] => Array ( [ID] => 119 [post_date] => 2014-04-29 07:27:37 [post_title] => title 2 ) ) [1] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-28 06:37:37 [post_title] => Title 3 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 07:27:37 [post_title] => Title 4 ) ) [2] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-24 06:37:37 [post_title] => Title 5 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 09:21:37 [post_title] => Title 6 ) ) )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Warning</b>: Wrong parameter count for usort() in <b>/in/BWTC4</b> on line <b>40</b><br /> Array ( [0] => Array ( [0] => Array ( [ID] => 118 [post_date] => 2014-04-28 07:27:37 [post_title] => Title 1 ) [1] => Array ( [ID] => 119 [post_date] => 2014-04-29 07:27:37 [post_title] => title 2 ) ) [1] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-28 06:37:37 [post_title] => Title 3 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 07:27:37 [post_title] => Title 4 ) ) [2] => Array ( [0] => Array ( [ID] => 135 [post_date] => 2014-04-24 06:37:37 [post_title] => Title 5 ) [1] => Array ( [ID] => 148 [post_date] => 2014-04-25 09:21:37 [post_title] => Title 6 ) ) )

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