将数组的var_dump转换回数组变量

var_export或序列化是您要查找的内容。 将呈现PHP可解析数组语法，并将呈现非人类可读但可逆的“数组到字符串”转换...var_exportserialize

编辑好的，对于挑战：

基本上，我将输出转换为序列化字符串（然后将其取消序列化）。我不认为这是完美的，但它似乎适用于我尝试过的一些非常复杂的结构......

function unvar_dump($str) {
    if (strpos($str, "\n") === false) {
        //Add new lines:
        $regex = array(
            '#(\\[.*?\\]=>)#',
            '#(string\\(|int\\(|float\\(|array\\(|NULL|object\\(|})#',
        );
        $str = preg_replace($regex, "\n\\1", $str);
        $str = trim($str);
    }
    $regex = array(
        '#^\\040*NULL\\040*$#m',
        '#^\\s*array\\((.*?)\\)\\s*{\\s*$#m',
        '#^\\s*string\\((.*?)\\)\\s*(.*?)$#m',
        '#^\\s*int\\((.*?)\\)\\s*$#m',
        '#^\\s*bool\\(true\\)\\s*$#m',
        '#^\\s*bool\\(false\\)\\s*$#m',
        '#^\\s*float\\((.*?)\\)\\s*$#m',
        '#^\\s*\[(\\d+)\\]\\s*=>\\s*$#m',
        '#\\s*?\\r?\\n\\s*#m',
    );
    $replace = array(
        'N',
        'a:\\1:{',
        's:\\1:\\2',
        'i:\\1',
        'b:1',
        'b:0',
        'd:\\1',
        'i:\\1',
        ';'
    );
    $serialized = preg_replace($regex, $replace, $str);
    $func = create_function(
        '$match', 
        'return "s:".strlen($match[1]).":\\"".$match[1]."\\"";'
    );
    $serialized = preg_replace_callback(
        '#\\s*\\["(.*?)"\\]\\s*=>#', 
        $func,
        $serialized
    );
    $func = create_function(
        '$match', 
        'return "O:".strlen($match[1]).":\\"".$match[1]."\\":".$match[2].":{";'
    );
    $serialized = preg_replace_callback(
        '#object\\((.*?)\\).*?\\((\\d+)\\)\\s*{\\s*;#', 
        $func, 
        $serialized
    );
    $serialized = preg_replace(
        array('#};#', '#{;#'), 
        array('}', '{'), 
        $serialized
    );

    return unserialize($serialized);
}

我在复杂的结构上对其进行了测试，例如：

array(4) {
  ["foo"]=>
  string(8) "Foo"bar""
  [0]=>
  int(4)
  [5]=>
  float(43.2)
  ["af"]=>
  array(3) {
    [0]=>
    string(3) "123"
    [1]=>
    object(stdClass)#2 (2) {
      ["bar"]=>
      string(4) "bart"
      ["foo"]=>
      array(1) {
        [0]=>
        string(2) "re"
      }
    }
    [2]=>
    NULL
  }
}

除了根据类型进行手动解析之外，没有其他方法。我没有添加对对象的支持，但它与数组非常相似;你只需要做一些反射魔术来填充公共属性，并且不触发构造函数。

编辑：添加了对对象的支持...反射魔法...

function unserializeDump($str, &$i = 0) {
    $strtok = substr($str, $i);
    switch ($type = strtok($strtok, "(")) { // get type, before first parenthesis
         case "bool":
             return strtok(")") === "true"?(bool) $i += 10:!$i += 11;
         case "int":
             $int = (int)substr($str, $i + 4);
             $i += strlen($int) + 5;
             return $int;
         case "string":
             $i += 11 + ($len = (int)substr($str, $i + 7)) + strlen($len);
             return substr($str, $i - $len - 1, $len);
         case "float":
             return (float)($float = strtok(")")) + !$i += strlen($float) + 7;
         case "NULL":
             return NULL;
         case "array":
             $array = array();
             $len = (int)substr($str, $i + 6);
             $i = strpos($str, "\n", $i) - 1;
             for ($entries = 0; $entries < $len; $entries++) {
                 $i = strpos($str, "\n", $i);
                 $indent = -1 - (int)$i + $i = strpos($str, "[", $i);
                 // get key int/string
                 if ($str[$i + 1] == '"') {
                     // use longest possible sequence to avoid key and dump structure collisions
                     $key = substr($str, $i + 2, - 2 - $i + $i = strpos($str, "\"]=>\n  ", $i));
                 } else {
                     $key = (int)substr($str, $i + 1);
                     $i += strlen($key);
                 }
                 $i += $indent + 5; // jump line
                 $array[$key] = unserializeDump($str, $i);
             }
             $i = strpos($str, "}", $i) + 1;
             return $array;
         case "object":
             $reflection = new ReflectionClass(strtok(")"));
             $object = $reflection->newInstanceWithoutConstructor();
             $len = !strtok("(") + strtok(")");
             $i = strpos($str, "\n", $i) - 1;
             for ($entries = 0; $entries < $len; $entries++) {
                 $i = strpos($str, "\n", $i);
                 $indent = -1 - (int)$i + $i = strpos($str, "[", $i);
                 // use longest possible sequence to avoid key and dump structure collisions
                 $key = substr($str, $i + 2, - 2 - $i + $i = min(strpos($str, "\"]=>\n  ", $i)?:INF, strpos($str, "\":protected]=>\n  ", $i)?:INF, $priv = strpos($str, "\":\"", $i)?:INF));
                 if ($priv == $i) {
                     $ref = new ReflectionClass(substr($str, $i + 3, - 3 - $i + $i = strpos($str, "\":private]=>\n  ", $i)));
                     $i += $indent + 13; // jump line
                 } else {
                     $i += $indent + ($str[$i+1] == ":"?15:5); // jump line
                     $ref = $reflection;
                 }
                 $prop = $ref->getProperty($key);
                 $prop->setAccessible(true);
                 $prop->setValue($object, unserializeDump($str, $i));
             }
             $i = strpos($str, "}", $i) + 1;
             return $object;

    }
    throw new Exception("Type not recognized...: $type");
}

（这里有很多“魔术”数字在递增字符串位置计数器时，大多只是关键字的字符串长度和一些括号等。$i