无法将字符串转换为JSON。 用于验证JSON的字符串并在PHP中解析JSON

Question

I am having the following JSON(invalid) as a string. I need to parse it and get the inner value. I tried a lot but didn't get the result.

    $sJson = '{"Place":"MyStore","PurchaseID":"IND.1234-5678-9012-34567","details":"{\"json\":\"{\\\"PurchaseID\\\":\\\"IND.1234-5678-9012-34567\\\",\\\"categoryname\\\":\\\"smartpack\\\",\\\"productname\\\":\\\"bitcoinpack1\\\",\\\"purchaseTime\\\":1504256011148,\\\"purchaseState\\\":\\\"Success\\\",\\\"UniqueToken\\\":\\\"jbbefjifdkpdpajfkomckoof.AO-J1OzEdsZX17M5pAvedDh1Ep_WwlOKamMQN_3O89bRbAPX-uoqPpTJf8EdNcjMhCK1dptGaWReUCSS9JGCJuh6GlAT0l11mkUddo_uJ4YOe8ezYxlmDQ8\\\"}\",\"currentvalue\":\"S270U2J3XF\\/+XnC1ocPp0d\\/Kwf\\/4B\\/\\/tT7urbDn6F+\\/D8j7VD1t8qqwevtKDnAafAtvocPg4Eevkf\\/GZKl1YOgUYyuY63nyekz7GRDuIKVXAZ+iZtPAbwCuwZplUQHaVA\\/EBMjYpPQM0EFtp2WuX\\/Tx9nTnFCtU+gAK4Rg0zLvQNKSJx5WfqhK7wf0wHTTYviTkB\\/pETnkV22oQDIZH9\\/Fy1FXltC7FXHXoMcxtGvkgPSEFOnms4HumjUQ5PtQUbxh\\/oirQeROCAhkO+WKX9WO3bCKjru1uuxspTLCNGJEKAezi2GEBcpFGjq4iS5N7SfO5BOF76\\/joLe3B7OemJNw==\"}"}';

    $sJson = json_encode($sJson,JSON_UNESCAPED_SLASHES);
    $json_array = (array) json_decode($sJson,true);
    $newjson=preg_replace('/.+?({.+}).+/','$1',$json_array);
    var_dump($newjson);
    exit;

The Result $newjson is not return as JSON Object, it gives as only string.

I need JSON object not a string.

In the given JSON, json value is a string(inside valid JSON) which starts with " .

I need to remove this.

Answer 1

json_encode takes a PHP data structure and turns it into a string of JSON.

You need json_decode to go the other way.

Answer 2

The string is mostly valid json, you just need to tweak a few things:

First, replace all of the \\\\" with " . (I had to run this twice)

$string = str_replace('\\"', '"', $string);

Then some of the braces are quoted:

$string = str_replace('"{', '{', $string);
$string = str_replace('}"', '}', $string);

Once that was done, I was able to successfully decode your json. This could possibly be done faster with preg_replace, but I suck at regexes.