从文件中将键值插入php中的关联数组

Question

我无法将文件中的值插入php关联数组。 有人可以帮忙吗？ 下面的代码，看第3个数组项，我想从文件中插入键值，但是每次出现错误时。 怎么做？ （包括，回显或函数结果-在数组内不起作用！）。 怎么做？

<?
$somedeclaredvaiable = '0 => "value1", 1 => "value2", 2 => value3", 3 => "value4", 4 => "value5", 7 => 4';

$a = array(
1 => array(
   0 => "value1",
   1 => "value2",
   2 => "value3",
   3 => "value4",
   4 => "value5",
   7 => 4

),
2 => array(
   0 => "value1a",
   1 => "value2a",
   2 => "value3a",
   3 => "value4a",
   4 => "value5a",
   7 => 4
),
3 => array(
//THE PROBLEM IS HERE, can't include file, or echo an variable!
include 'filewitharray.txt';  //doesn't work
echo $somedeclaredvariable ;  //doesn't work
),
);

?>

Answer 1

您的代码的这一部分在语法上是不正确的：

3 => array(
//THE PROBLEM IS HERE, can't include file, or echo an variable!
include 'filewitharray.txt';  //doesn't work
echo $somedeclaredvariable ;  //doesn't work
),

假设filewitharray.txt是一个将返回数组（或其他内容）的php文件，如下所示：

<?php
    return array('foo' => 'bar');

然后，您可以执行以下操作：

$a[] = require 'filewitharray.txt';

它将filewitharray.txt返回的变量添加到表中。

如果不应将filewitharray.txt作为PHP代码，并且您希望将文件的内容（作为字符串）添加到数组中，则可以这样做：

<?php

$a[] = file_get_contents('filewitharray.txt');

Answer 2

现在就试试。

<?php

  include 'filewitharray.txt';

    $somedeclaredvaiable = '0 => "value1", 1 => "value2", 2 => value3", 3 => "value4", 4 => "value5", 7 => 4';



    $a = array(
    1 => array(
       0 => "value1",
       1 => "value2",
       2 => "value3",
       3 => "value4",
       4 => "value5",
       7 => 4

    ),
    2 => array(
       0 => "value1a",
       1 => "value2a",
       2 => "value3a",
       3 => "value4a",
       4 => "value5a",
       7 => 4
    ),
    3 => array(



    ),
    );

    ?>

Answer 3

首先，事先获取文件内容：

$included = file_get_contents("file with array.txt");

然后在数组声明中：

...snip
3 => array(
    $included, $somedeclaredvariable
)
);