PHP数组如何合并答案

【问题标题】：PHP array how to mergePHP数组如何合并
【发布时间】：2017-05-25 21:38:20
【问题描述】：

我有这个数组：

array(9) {
    [0]=>
    string(5) ",103,"
    [1]=>
    string(4) ",12,"
    [2]=>
    string(5) ",123,"
    [3]=>
    string(5) ",135,"
    [4]=>
    string(5) ",148,"
    [5]=>
    string(4) ",27,"
    [6]=>
    string(16) ",30,31,38,39,40,"
    [7]=>
    string(4) ",35,"
    [8]=>
    string(4) ",94,"
}

如何将它合并到这样的数组中？

$a = array(12, 27, 30, 31, 35, 38, 39, 40, ...)

我试过了，但不知道...

【问题讨论】：

不知道这两个数组是如何相关的
那么您是说您希望将该数组中的所有值放入一个数组中并进行排序？
是的，比尔，没错。

标签： php arrays merge

【解决方案1】：

使用preg_match_all和sort函数的解决方案：

$arr = [",103,",",12,",",123,",",135,",",148,",",27,",",30,31,38,39,40,",",35,",",94,"];
preg_match_all('/\d+/', implode("", $arr), $m);
$result = $m[0];
sort($result);

print_r($result);

输出：

Array
(
    [0] => 12
    [1] => 27
    [2] => 30
    [3] => 31
    [4] => 35
    [5] => 38
    [6] => 39
    [7] => 40
    [8] => 94
    [9] => 103
    [10] => 123
    [11] => 135
    [12] => 148
)

【讨论】：

【解决方案2】：

<?php
$test = array(",103,", ",12,", ",123,", ",135,", ",148,", ",27,",",30,31,38,39,40,", ",35,", ",94,");

$values = array_filter(explode(',', implode(",", $test)));
sort($values);
print_r($values);

内爆所有值到一个字符串
转换为数组
删除空值
排序

会输出

Array
(
    [0] => 12
    [1] => 27
    [2] => 30
    [3] => 31
    [4] => 35
    [5] => 38
    [6] => 39
    [7] => 40
    [8] => 94
    [9] => 103
    [10] => 123
    [11] => 135
    [12] => 148
)

【讨论】：

【解决方案3】：

您可以遍历数组，然后用逗号将其分解。然后，如果该值不是空字符串，则将其添加到新数组中。

$arr = [",103,", ",12,", ",123,", ",135,", ",148,", ",27,", ",30,31,38,39,40,", ",35,", ",94,"];
$new = array();

foreach ($arr as $val) {
  foreach (explode(",", $val) as $char) {
      if ($char != '') {
        array_push($new, $char);
      }
    }
  }

【讨论】：

【解决方案4】：

试试这个：

sort(explode(',', str_replace(',,', ',', implode('', $a))));

【讨论】：