php数结合并高手挑战

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php数组合并 高手挑战
将以下数组合并为一个数组
Array
(
[0] => Array
(
[id] => default
[name] => aaa
[tel] => bbb
[age] => ccc
)

[1] => Array
(
[id] => 11
[name] => aaa
[tel] => bbb
[age] => ccc
)

[2] => Array
(
[id] => 22
[name] => aaa
[tel] => bbb
[age] => ccc
)

[3] => Array
(
[id] => 33
[name] => aaa
[tel] => bbb
[age] => ccc
)

[4] => Array
(
[id] => 44
[name] => new
[tel] => eee
[age] => fff
)

[5] => Array
(
[id] => 66
[name] => new
[tel] => eee
[age] => fff
)

)


将以上数组合并为下面的数组

Array
(
[0] => Array
(
[id] => array(
[0] => default
[1] => 11
[2] => 22
[3] => 33
)
[name] => aaa
[tel] => bbb
[age] => ccc
)

[1] => Array
(
[id] => array(
[0] => 44,
[1] => 66
)
[name] => new
[tel] => eee
[age] => fff
)

)

------解决方案--------------------

PHP code

$ar = array (
  0 => 
  array (
    'id' => 'default',
    'name' => 'aaa',
    'tel' => 'bbb',
    'age' => 'ccc',
  ),
  1 => 
  array (
    'id' => '11',
    'name' => 'aaa',
    'tel' => 'bbb',
    'age' => 'ccc',
  ),
  2 => 
  array (
    'id' => '22',
    'name' => 'aaa',
    'tel' => 'bbb',
    'age' => 'ccc',
  ),
  3 => 
  array (
    'id' => '33',
    'name' => 'aaa',
    'tel' => 'bbb',
    'age' => 'ccc',
  ),
  4 => 
  array (
    'id' => '44',
    'name' => 'new',
    'tel' => 'eee',
    'age' => 'fff',
  ),
  5 => 
  array (
    'id' => '66',
    'name' => 'new',
    'tel' => 'eee',
    'age' => 'fff',
  ),
);

$res = array();
foreach($ar as $r) {
  $k = "$r[name]--$r[tel]--$r[age]";
  if(! isset($res[$k])) {
    $res[$k] = $r;
    $res[$k]['id'] = array();
  }
  $res[$k]['id'][] = $r['id'];
}
$res = array_values($res);
print_r($res); 


           
                
                                                

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