将数组转换为正确的形式

Question

转换文件后

$rows = array_map('trim', file($lines1));
foreach ($rows as $key => $value) {
  $params = array_map('trim', explode(';', $value));
}

得到如下类型的数组，包含在一个变量中：

Array ( [0] => 0 [1] => 1 [2] => 2 [3] => i need this [4] => 4 [5] => 5 [6] => 6 [7] => 7 [8] => 8 [9] => 9 [10] => 10 [11] => 11 [12] => 12 [13] => 13 [14] => 14 )
Array ( [0] => 0 [1] => 1 [2] => 2 [3] => i need this [4] => 4 [5] => 5 [6] => 6 [7] => 7 [8] => 8 [9] => 9 [10] => 10 [11] => 11 [12] => 12 [13] => 13 [14] => 14 )
etc...

如何组合这些数组并将 key = 3 的值放入单独的变量中。 查看：

Array ( [0] => i need this [1] => i need this and etc...

Answer 1

$range = range(1, 100);
$result = array_combine($range, $range);

查看array_combine