Are you stuck with the “interface JsonSerializable not found” error? We’ll help you fix this PHP error.

Usually, JSON can store and exchange data easily. But, it often creates troubles in frameworks like Laravel.

At Bobcares, we often receive requests to fix these PHP errors as part of our Server Management Services.

Today, let’s check how our Support Engineers easily fixed the JsonSerializable error for our customer.

What is Interface JsonSerializable?

Before getting deep into the error, let’s have a look at the JSON concept.

JSON has the advantage of being the most popular data-interchange format.

JSON or JavaScript Object Notation can read data from a web server and display the data on a web page.

Also, when compared to XML, JSON is much preferred due to its human-readable text format, easy parsing, simple keys used and many more. The same applies to the Laravel framework too. In general, Laravel gives the output in JSON format.

And, JsonSerializable interface specifies JSON the data to serialize.

Now, let’s check how our Support Engineers resolve the errors related to this interface.

How we fixed the “Interface JsonSerializable not found” error?

Having a decade of experience in managing servers, our Dedicated Engineers frequently get requests to solve PHP errors. Now, let us discuss the “JsonSerializable not found” error in detail.

Recently, one of our customers approached us with a PHP error.

He had a Laravel project that worked fine in the local system. But, when he moved it to the server, he got the below error.

So, our Support Engineers started checking by examing the PHP error logs. The entries said:

PHP Fatal error: Interface 'JsonSerializable' not found in /home/user/domain/vendor/laravel/framework/src/xxx/Support/Script.php on line 40

And, his PHP version was 7.0.17.

On checking, we found an error with the PHP settings. The JSON was not active in the particular version of PHP. Therefore, we upgraded PHP to the higher version 7.3 that included JSON support.  We confirmed the same from the PHPinfo page of the website.

This resolved the error easily. And the application started working fine.

[Need more assistance to fix Laravel error?- Our Laravel Engineers are available 24/7.]

Conclusion

In short, the error “interface JsonSerializable not found” occurs due to not enabling the JSON in the PHP version. In today’s write up, we discussed JSON and saw how our Support Engineers fix this PHP error easily.