note 88790 deleted from function.json-encode by crell
| From: | crell@php.net | Date: | Thu, 30 Jun 2022 19:43:05 +0000 |
| Subject: | note 88790 deleted from function.json-encode by crell | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-218787@lists.php.net to get a copy of this message | ||
Note Submitter: aangel at spam dot com
----
Here is a bit more on creating an iterator to get at those pesky private/protected variables:
<?php
class Kit implements IteratorAggregate {
public function __construct($var) {
if (is_object($var)) {
// if passed an object, we are cloning
$this->kitID = $var->kitID;
$this->kitName = $var->kitName;
foreach ($var->productArray as $key => $value) {
$this->productArray[$key] = (array)$value;
}
}
}
...
// Create an iterator because private/protected vars can't
// be seen by json_encode().
public function getIterator() {
$iArray['kitID'] = $this->kitID;
$iArray['kitName'] = $this->kitName;
$iArray['productArray'] = (array)$this->productArray;
return new ArrayIterator($iArray);
}
}
?>
Calling something like $t = json_encode($this->getIterator()); will give you almost what you
want:
<?php
{"kitID":"Kit_Essentials-Books.txt",
"kitName":"Essential Books",
"productArray":{"0470043601":{"Category":"Food","ASIN":"0470043601"}
} }
?>
Notice that the productArray is converted to an object ignoring the cast I put in front, which is
not what I wanted. I haven't figured out how to make sure that encodes as an array.
Regardless, bringing that JSON back into an object using json_decode() will give you just a std
object, and the only way I've found to get it into the proper object type is to use a
constructor that instantiates the object the way it's supposed to be (see __construct($var)
above). Like this:
<?php
$newKit = new Kit(json_decode($t));
?>