Question

我想将关联数组作为字符串存储到变量a中，然后将变量转换为数组。

$var='"electirc_bill"=>array(
                                   "type" => "number",
                                    "required"=>"yes"
                                  ),
      "electirc_bill_per"=>array(
                                   "type" => "number",
                                    "required"=>"yes"
                                 ),                   
              "gass_bill"=>array(     
                                   "type" => "number",
                                    "required"=>"yes"
                                  )
    )';

    var_dump($var);

Answer 1

使用serialize和unserialize。

将数组转换为字符串：

$string = serialize($array);

将其转换回数组：

$array = unserialize($string);

编辑：根据您的评论，您似乎已将数组存储为字符串，并希望能够将其转换为数组。为此，我会使用eval，但在将其与任何用户输入一起使用时要小心，因为它可能会导致代码中出现安全漏洞。

我在这里使用您的代码做了一个小例子：http://codepad.org/rPNXPBlW

$var = '$array_var = array("One" => array("1.1", "1.2"), "Two" => array("2.1", "‌2.2"));';

eval($var);

echo $array_var['One'][0]; // Shows 1.1

Answer 2

使用如下，

$json_str = json_encode($var); 

first then use json_decode($json_str); where required

Answer 3

// save
file_put_contents('file.json', json_encode($array));

// load
$array = json_decode(file_get_contents('file.json'), true);

Answer 4

您可以像这样使用序列化和反序列化：

<?
$var=array("electirc_bill"=>array(
                 "type" => "number",
                 "required"=>"yes"
               ),
      "electirc_bill_per"=>array(
                 "type" => "number",
                 "required"=>"yes"
               ),                   
      "gass_bill"=>array(     
               "type" => "number",
               "required"=>"yes"
           )
    );
    var_dump($var);
    $string = serialize($var);
    var_dump($string);
    $array = unserialize($string);
    var_dump($array );
?>

WORKING CODE

Answer 5

  Here i give suggestion to use this array will meet your requirement 

$name=array('parent1'=>array('childone'=>'harish','childtwo'=>'vignesh'),'parent2'=>array('childone'=>'our children'));
echo "<pre>";
print_r($name);

foreach($name as $parents)
 {
  foreach($parents as $child)
   {
     echo "<pre>"; print_r($child);
   }
 }

我想将字符串（关联数组字符串）转换为关联数组？

5 个答案: