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