关于php数组排序的有关问题

关于php数组排序的问题？

$arr = array('中','秋','节','快','乐')

我想实现上面这个数组内的各项（中秋节快乐）前后顺序不变，可以增减的所有排序：

中秋节快乐
中秋节快
中秋节乐
中秋节
秋节快
秋节
节乐
中秋
中
秋

类似这样 所有的

请大家多多指教 谢谢~

分享到：

------解决方案--------------------

$arr = array('中','秋','节','快','乐');<br />
<br />
for($i=0; $i<=count($arr); $i++) {<br />
  $a = join('', array_slice($arr, 0, -$i));<br />
  if($i) foreach(array_slice($arr, -$i) as $v)<br />
    echo $a.$v, PHP_EOL;<br />
  else echo $a, PHP_EOL;<br />
}<br />

中秋节快乐
中秋节快
中秋节乐
中秋节
中秋快
中秋乐
中秋
中节
中快
中乐
中
秋
节
快
乐

Related labels：

arr array nbsp php slice

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