关于一个数组的有关问题，重新组合

关于一个数组的问题，重新组合
原数组：

<br />$arr=array<br />(<br />    [0] => Array<br />        (<br />            [caseid] => 31<br />            [name] => 张三<br />            [shijian] => Array<br />                (<br />                    [0] => 8:00<br />                    [1] => 18:00<br />                )<br /><br />        )<br /><br />    [1] => Array<br />        (<br />            [caseid] => 32<br />            [name] => 李四<br />            [shijian] => Array<br />                (<br />                    [0] => 8:00<br />                    [1] => 12:00<br />                    [2] => 18:00<br />                )<br /><br />        )<br /><br />    [2] => Array<br />        (<br />            [caseid] => 33<br />            [name] => 王五<br />            [shijian] => Array<br />                (<br />                    [0] => 8:00<br />                    [1] => 12:00<br />                    [2] => 18:00<br />                )<br /><br />        )<br /><br />)<br />

我要将这个数组 重新组合，按照时间组合，组合完毕应该是这样的，搞了好久搞不出来。求助，谢谢

<br>Array<br>(<br>    [0] => Array<br>        (<br>            [time] => 8:00<br>            [detail] => Array<br>                (<br>                    [0] => Array<br>                        (<br>                            [caseid] => 31<br>                            [casename] => 张三<br>                            <br>                        )<br>					[1] => Array<br>						(<br>							[caseid] => 32<br>							[casename] =>李四<br>							<br>						)<br>					[2] => Array<br>						(<br>							[caseid] => 33<br>							[casename] => 王五<br>							<br>						)<br><br>                )<br><br>        )<br><br>    [1] => Array<br>        (<br>            [time] => 12:00<br>            [detail] => Array<br>                (<br>                    [0] => Array<br>                        (<div class="clear">
                 
              
              
        
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