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PHP code to sort multidimensional arrays by a certain value

WBOY
WBOYOriginal
2016-07-25 09:07:38846browse
  2. $arr = array(
  3. "0" => array(line_num => "10", occur_time => "2007-11-19 10:25:04+08"),
  4. 　　 "1" => array(line_num => "9", occur_time => "2007-11-19 10:25:04+08"),
  5. 　"2" => array(line_num => "25", occur_time => "2007-11-19 10:25:04+08")
  6. );
  7. print_r($arr);
  8. echo "
    ";
  9. echo "
    ";
  10. echo "
    ";
  11. uasort( $arr,create_function('$a, $b', 'return $a['line_num'] < $b['line_num'];') );
  12. print_r($arr);
  13. echo "
    ";
  14. echo "
    ";
  15. echo "
    ";
  16. foreach($arr as $key => $value) {
  17. $ar[] = $value;
  18. }
  19. print_r($ar);
  20. ?>
复制代码

输出结果： Array ( [0] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) [2] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) )


Array ( [2] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) [0] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) )


Array ( [0] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [2] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) )

>>> 更多内容，请查看 php数组排序方法大全



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