是否有本地PHP函数来压缩合并两个数组?
请看以下示例:
$a = array("a","b","c");
$b = array("d","e","f");
$c = array("g","h","i");
var_dump(array_merge($a,$b,$c));
这会产生:
array(9) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[3]=>
string(1) "d"
[4]=>
string(1) "e"
[5]=>
string(1) "f"
[6]=>
string(1) "g"
[7]=>
string(1) "h"
[8]=>
string(1) "i"
}
但是我想:
array(9) {
[0]=>
string(1) "a"
[1]=>
string(1) "d"
[2]=>
string(1) "g"
[3]=>
string(1) "b"
[4]=>
string(1) "e"
[5]=>
string(1) "h"
[6]=>
string(1) "c"
[7]=>
string(1) "f"
[8]=>
string(1) "i"
}
因此我写了自己的 - 测试了一个工作函数:
function array_zip(...$arrays) {
$res = array();
while(true) {
$check_finish = true;
foreach($arrays as $array) {
if(!empty($array)) {
$check_finish = false;
}
}
if($check_finish) {
break;
} else {
foreach($arrays as $key => $array) {
if(!empty($array)) {
array_push($res,array_shift($array));
$arrays[$key] = $array;
}
}
}
}
return $res;
}
然而,有一个本机PHP函数来合并这样的数组(可能更高性能)?是否有用于此目的的本机PHP功能,它保留了密钥但保留了订单?没找到......:/ /
答案 0 :(得分:0)
没有用于此目的的PHP本机功能。但是根据@Mark Baker的评论,实现这一点的可能性很小:
$a = array("a","b","c");
$b = array("d","e","f");
$c = array("g","h","i");
function array_zip(...$arrays) {
return array_merge(...array_map(null, ...$arrays));
}
var_dump(array_zip($a,$b,$c));