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) ); print_r($arr); echo
; echo
; echo
; uasort( $arr,create_function('$a, $b', 'return $a[\'line_num\'] print_r($arr); echo
; echo
; echo
; foreach($arr as $key => $value) { $ar[] = $value; } print_r($ar);?>
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