Скачать или смотреть How to Save Data in JSON Format with CodeIgniter

Learn how to properly save data in JSON format using CodeIgniter, ensuring your data is stored efficiently for easy access and manipulation.
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This video is based on the question https://stackoverflow.com/q/63818391/ asked by the user 'zecaluis' ( https://stackoverflow.com/u/11610257/ ) and on the answer https://stackoverflow.com/a/63818470/ provided by the user 'u_mulder' ( https://stackoverflow.com/u/1553888/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Save Data in JSON Format with CodeIgniter

When working with web applications, storing data efficiently is a fundamental requirement. One common format for data storage and transmission is JSON (JavaScript Object Notation). If you're using CodeIgniter, you may run into challenges while trying to save form data in JSON format. In this post, we'll explore a specific example and provide a clear solution to help you confidently save data in JSON format.

The Problem

Consider a scenario where you have an HTML form designed to accept multiple values:

[[See Video to Reveal this Text or Code Snippet]]

You want to send these values to your CodeIgniter controller and save them in a JSON format like this:

[[See Video to Reveal this Text or Code Snippet]]

However, when trying to implement this, you find that your function is not producing the desired output.

The Solution

To ensure that your form correctly sends an array of values that can be encoded to JSON, you need to modify the name attribute of the input fields in your form. Here’s how:

Step 1: Update the Input Fields

Change your input fields in the HTML form from:

[[See Video to Reveal this Text or Code Snippet]]

to:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Modify the Controller Function

Next, ensure that your controller function correctly processes this data. Update your CodeIgniter function to properly handle the incoming array:

[[See Video to Reveal this Text or Code Snippet]]

How It Works

By appending [] to the name attribute in the input elements, you inform the browser to send an array of values for each input where the name is values.

When the form is submitted, CodeIgniter's $this->input->post('values') will return an array containing all the values entered in the inputs.

The json_encode() function then converts this array into a JSON-formatted string, which you can then save to your database.

Conclusion

Saving data in JSON format with CodeIgniter is straightforward when you use the correct input naming convention in your HTML forms. By using an array notation for the name attribute and correctly processing this in your controller, you can ensure that your data is stored in a JSON format without any issues.

Happy coding! If you have further questions or run into issues, feel free to leave a comment below.