Database json column returning escaped string in l

问题:

I have saved some Json data in a MySQL column. While fetching the data to a Laravel Blade application the json fields are all escaped. Hence, I am facing issues while reading the json data.

[
  {
    "id": "1",
    "json_backup": "{\"id\":\"2\",\"organization_id\":\"1\",\"amount\":\"7800.00\",\"date\":\"2015-05-11\",\"created_at\":\"2015-05-11 07:20:45\",\"updated_at\":\"2015-05-11 07:20:45\"}",
    "ip": "127.0.0.1",
    "created_at": "2015-05-12 12:21:16",
    "updated_at": "2015-05-12 12:21:16"
  }
]

The json_backup field in the above example is escaped. How do I ensure that this field is not escaped.

Code to fetch the data

$activity = Activity::find(1);

In the View:

@foreach ($activities AS $activity)

       @foreach($activity->json_backup AS $order)

       @endforeach
@endforeach

Error:

Invalid argument supplied for foreach()

Any help would be much appreciated.

回答1:

@saaz When you are storing the JSON in MySQL, use

json_encode($json_backup, JSON_UNESCAPED_SLASHES)

HTH

回答2:

This error is coming on the second foreach section. Please try it in somewhat this way.

$json = json_decode($activity->json_backup, true);

This would work but can't say it definitely. And even if you have problem refactor the code and create a class with following code:

function escapeJsonString($value) { 
    $escapers = array("\\", "/", "\"", "\n", "\r", "\t", "\x08", "\x0c");
    $replacements = array("\\\\", "\\/", "\\\"", "\\n", "\\r", "\\t", "\\f", "\\b");
    $result = str_replace($escapers, $replacements, $value);
    return $result;
}

And simply say

$json = escapeJsonString($activity->json_backup);

This one would definitely work. Hope so this helps.