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多维数组排序的问题

时间:2021-07-01 10:21:17 帮助过:32人阅读

$array= array(
'123456'=>array('aa','bb','cc'),
'12345645'=>array('aa','cc'),
'1234564555'=>array('aa','dd','cc','bb'),
'12364555'=>array('aa','dd','cc'),
);

请问怎么按子数组的长度来排,我想要的结果是

$array= array(
'12345645'=>array('aa','cc'),
'123456'=>array('aa','bb','cc'),
'12364555'=>array('aa','dd','cc'),
'1234564555'=>array('aa','dd','cc','bb'),

);


回复讨论(解决方案)

  1. $array = array( '123456'=>array('aa','bb','cc'), '12345645'=>array('aa','cc'), '1234564555'=>array('aa','dd','cc','bb'), '12364555'=>array('aa','dd','cc'),);foreach($array as $i=>$v) { $r[] = count($v); $k[] = $i;}array_multisort($r, $k, $array);print_r(array_combine($k, $array));
  1. Array( [12345645] => Array ( [0] => aa [1] => cc ) [123456] => Array ( [0] => aa [1] => bb [2] => cc ) [12364555] => Array ( [0] => aa [1] => dd [2] => cc ) [1234564555] => Array ( [0] => aa [1] => dd [2] => cc [3] => bb ))

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