PHP 求一个合并数组算法

Question

1、有一个数组：
array(7) {
[0]=>
array(2) {
["rental_date"]=>
string(10) "2016-11-27"
["rental"]=>
string(6) "100000"
}
[1]=>
array(2) {
["rental_date"]=>
string(10) "2016-11-28"
["rental"]=>
string(5) "78900"
}
[2]=>
array(2) {
["rental_date"]=>
string(10) "2016-11-29"
["rental"]=>
string(6) "100000"
}
[3]=>
array(2) {
["rental_date"]=>
string(10) "2016-11-30"
["rental"]=>
string(6) "100000"
}
[4]=>
array(2) {
["rental_date"]=>
string(10) "2016-12-01"
["rental"]=>
string(6) "100000"
}
[5]=>
array(2) {
["rental_date"]=>
string(10) "2016-12-02"
["rental"]=>
string(6) "0"
}
[6]=>
array(2) {
["rental_date"]=>
string(10) "2016-12-03"
["rental"]=>
string(6) "0"
}
}
最终合并成
array(4)｛
[0]=>
array(3) {
["start_date"]=>
string(10) "2016-11-27"
["end_date"]=>
string(10) "2016-11-27"
["rental"]=>
string(6) "100000"
}
[1]=>
array(3) {
["start_date"]=>
string(10) "2016-11-28"
["end_date"]=>
string(10) "2016-11-28"
["rental"]=>
string(5) "78900"
}
[2]=>
array(3) {
["start_date"]=>
string(10) "2016-11-29"
["end_date"]=>
string(10) "2016-12-01"
["rental"]=>
string(6) "100000"
}
[3]=>
array(3) {
["start_date"]=>
string(10) "2016-12-02"
["end_date"]=>
string(10) "2016-12-03"
["rental"]=>
string(6) "0"
}
｝

Answer 1

没太看明白你的需求。。。