解析 var_export 输出文本以填充关联数组

发布于 11-26 01:49 字数 506 浏览 5 评论 0原文

不久前，我通过一些 API 获取了大量数据，并将其保存到一个平面文件中，执行简单的 var_dump 或 print_r。现在我正在处理数据，每行看起来像：

" 'middle_initial' => '', 'sid' => '1419843', '固定' => 'Y', '购物车重量' => '0', '键' => 'ABCD', '状态' => 'XX', '姓氏' => 'MNOP', '电子邮件' => '[电子邮件受保护]', 'city' => '伦敦'， '街道地址' => '样本', '名字' => '斯帕什'，”

现在我需要将这些数据恢复为数组格式。有什么办法可以做到这一点吗？

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吻风 2024-12-03 01:49:03

首先使用 explode() 函数爆炸字符串怎么样？ >', ' 作为分隔符：

$str = "'middle_initial' => '', 'sid' => '1419843', 'fixed' => 'Y', 'cart_weight' => '0', 'key' => 'ABCD', 'state' => 'XX', 'last_name' => 'MNOP', 'email' => '[email protected]', 'city' => 'London', 'street_address' => 'Sample', 'first_name' => 'Sparsh',";
$items = explode(', ', $str);
var_dump($items);

这将使您得到一个如下所示的数组：

array
  0 => string ''middle_initial' => ''' (length=22)
  1 => string ''sid' => '1419843'' (length=18)
  2 => string ''fixed' => 'Y'' (length=14)
  3 => string ''cart_weight' => '0'' (length=20)
  ...

然后，迭代该列表，匹配 => 每一侧的每个项目，并使用 => 的第一侧作为结果的键数据，第二个作为值：

$result = array();
foreach ($items as $item) {
    if (preg_match("/'(.*?)' => '(.*?)'/", $item, $matches)) {
        $result[ $matches[1] ] = $matches[2];
    }
}
var_dump($result);

这会让你：

array
  'middle_initial' => string '' (length=0)
  'sid' => string '1419843' (length=7)
  'fixed' => string 'Y' (length=1)
  'cart_weight' => string '0' (length=1)
  ...

但是，说真的，您不应该以如此糟糕的格式存储数据： print_r() 是为了显示数据而用于调试目的 - 而不是存储它以便稍后重新加载！

如果要将数据存储到文本文件，请使用 serialize() 或json_encode()，都可以使用 unserialize() 或 json_decode() 分别。

What about first exploding the string with the explode() function, using ', ' as a separator :

$str = "'middle_initial' => '', 'sid' => '1419843', 'fixed' => 'Y', 'cart_weight' => '0', 'key' => 'ABCD', 'state' => 'XX', 'last_name' => 'MNOP', 'email' => '[email protected]', 'city' => 'London', 'street_address' => 'Sample', 'first_name' => 'Sparsh',";
$items = explode(', ', $str);
var_dump($items);

Which would get you an array looking like this :

array
  0 => string ''middle_initial' => ''' (length=22)
  1 => string ''sid' => '1419843'' (length=18)
  2 => string ''fixed' => 'Y'' (length=14)
  3 => string ''cart_weight' => '0'' (length=20)
  ...

And, then, iterate over that list, matching for each item each side of the =>, and using the first side of => as the key of your resulting data, and the second as the value :

$result = array();
foreach ($items as $item) {
    if (preg_match("/'(.*?)' => '(.*?)'/", $item, $matches)) {
        $result[ $matches[1] ] = $matches[2];
    }
}
var_dump($result);

Which would get you :

array
  'middle_initial' => string '' (length=0)
  'sid' => string '1419843' (length=7)
  'fixed' => string 'Y' (length=1)
  'cart_weight' => string '0' (length=1)
  ...

But, seriously, you should not store data in such an awful format : print_r() is made to display data, for debugging purposes -- not to store it an re-load it later !

If you want to store data to a text file, use serialize() or json_encode(), which can both be restored using unserialize() or json_decode(), respectively.

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〗斷ホ乔殘χμё〖 2024-12-03 01:49:03

尽管我完全同意帕斯卡·马丁的观点，但如果您有此类数据需要处理，则以下内容（如帕斯卡的第一个建议提到的）可以根据您的实际内容起作用。不过，请帮自己一个忙，以可以可靠地放回 PHP 数组的格式存储数据（序列化、JSON、CSV 等）。

<pre>
<?php

$str = "\" 'middle_initial' => '', 'sid' => '1419843', 'fixed' => 'Y', 'cart_weight' => '0', 'key' => 'ABCD', 'state' => 'XX', 'last_name' => 'MNOP', 'email' => '[email protected]', 'city' => 'London', 'street_address' => 'Sample', 'first_name' => 'Sparsh',\"";

function myStringToArray($str) {
    $str = substr($str, 1, strlen(substr($str, 0, strlen($str)-2)));
    $str = str_replace("'",'',$str);
    $strs = explode(',', $str);
    $arr = array();
    $c_strs = count($strs);
    for ($i = 0; $i < $c_strs; $i++) {
        if (strpos($strs[$i],'=>') !== false) {
            $_arr = explode('=>',$strs[$i]);
            $arr[trim($_arr[0])] = trim($_arr[1]);
        }
    }
    return $arr;
}

print_r(myStringToArray($str));

?>
</pre>

http://jfcoder.com/test/substr.php

注意，您需要调整如果数组成员的内容中有逗号（例如，使用 Pascal 关于 ', ' 标记的建议），请使用该函数。

Although I wholeheartedly agree with Pascal Martin, if you have this kind of data to deal with, the following (as Pascal's first suggestion mentions) could work depending on your actual content. However, do yourself a favor and store your data in a format that can be reliably put back into a PHP array (serialize, JSON, CSV, etc...).

<pre>
<?php

$str = "\" 'middle_initial' => '', 'sid' => '1419843', 'fixed' => 'Y', 'cart_weight' => '0', 'key' => 'ABCD', 'state' => 'XX', 'last_name' => 'MNOP', 'email' => '[email protected]', 'city' => 'London', 'street_address' => 'Sample', 'first_name' => 'Sparsh',\"";

function myStringToArray($str) {
    $str = substr($str, 1, strlen(substr($str, 0, strlen($str)-2)));
    $str = str_replace("'",'',$str);
    $strs = explode(',', $str);
    $arr = array();
    $c_strs = count($strs);
    for ($i = 0; $i < $c_strs; $i++) {
        if (strpos($strs[$i],'=>') !== false) {
            $_arr = explode('=>',$strs[$i]);
            $arr[trim($_arr[0])] = trim($_arr[1]);
        }
    }
    return $arr;
}

print_r(myStringToArray($str));

?>
</pre>

http://jfcoder.com/test/substr.php

Note, you would need to adjust the function if you have comma's within your array member's content (for instance, using Pascal's suggestion about the ', ' token).

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