for (var key in SecondOBJ) {
FirstOBJ[key] = FirstOBJ[key] && FirstOBJ[key].toString() === "[object Object]" ?
deepObjectMerge(FirstOBJ[key], SecondOBJ[key]) : FirstOBJ[key] = SecondOBJ[key]
}
return FirstOBJ
}
php数组根据某一个键值，把相同键值的合并生成一个新的二维数组源数据：
$infos = array( array( 'a' =>36, 'b' =>'xa', 'c' =>'2015-08-28 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>3, 'b' =>'vd', 'c' =>'2015-08-20 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>6, 'b' =>'wwe', 'c' =>'2015-08-28 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>36, 'b' =>'se', 'c' =>'2015-08-28 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>6, 'b' =>'aw', 'c' =>'2015-08-28 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>36, 'b' =>'bv', 'c' =>'2015-08-28 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
), array( 'a' =>12, 'b' =>'xx', 'c' =>'2015-08-27 00:00:00', 'd' =>'2015/08/438488a00b3219929282e3652061c2e3.png'
)
)1234567891011121314151617181920212223242526272829303132333435363738394041424344
处理要求：将数组中a相同的二维数组合并到一个数组中，生成一个新的数组
代码：
<?php
$result= array()foreach ($infos as $key =>$info) { $result[$info['a']][] = $info
}
print_r($result)123456
输出：
Array(
[36] =>Array
(
[0] =>Array
(
[a] =>36
[b] =>xa
[c] =>2015-08-28 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
[1] =>Array
(
[a] =>36
[b] =>se
[c] =>2015-08-28 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
[2] =>Array
(
[a] =>36
[b] =>bv
[c] =>2015-08-28 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
)
[3] =>Array
(
[0] =>Array
(
[a] =>3
[b] =>vd
[c] =>2015-08-20 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
)
[6] =>Array
(
[0] =>Array
(
[a] =>6
[b] =>wwe
[c] =>2015-08-28 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
[1] =>Array
(
[a] =>6
[b] =>aw
[c] =>2015-08-28 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
)
[12] =>Array
(
[0] =>Array
(
[a] =>12
[b] =>xx
[c] =>2015-08-27 00:00:00
[d] =>2015/08/438488a00b3219929282e3652061c2e3.png
)
)
)
描述方法concat()将创建并返回一个新数组，这个数组是将所有参数都添加到array中生成的。它并不修改array。如果要进行concat()操作的参数是一个数组，那么添加的是数组中的元素，而不是数组。
示例
var
a
=
[1,2,3]
a.concat(4,
5)
//返回
[1,2,3,4,5]
a.concat([4,5])
//返回
[1,2,3,4,5]
a.concat([4,5],[6,7])
//返回
[1,2,3,4,5,6,7]
a.concat(4,
[5,[6,7]])
//返回
[1,2,3,4,5,[6,7]]
