<?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, function($a, $b) {
return $a['post_date'] - $b['post_date'];
});
print_r($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
- Warning: Undefined array key "post_date" in /in/tF0Nn on line 41
Warning: Undefined array key "post_date" in /in/tF0Nn on line 41
Warning: Undefined array key "post_date" in /in/tF0Nn on line 41
Warning: Undefined array key "post_date" in /in/tF0Nn on line 41
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 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
- Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
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 7.3.32 - 7.3.33, 7.4.26
- 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 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
- Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
Notice: Undefined index: post_date in /in/tF0Nn on line 41
Array
(
[0] => 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
)
)
[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] => 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
)
)
)
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- Parse error: syntax error, unexpected T_FUNCTION in /in/tF0Nn on line 40
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, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_FUNCTION in /in/tF0Nn on line 40
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/tF0Nn on line 40
Process exited with code 255.
preferences:
305.07 ms | 401 KiB | 460 Q