How to Include Data from a Disabled Select Element in Form Submissions?

Using a Disabled Select and Hidden Input for Form Data Inclusion

In HTML, the tag lacks a dedicated readonly attribute, forcing developers to rely on the disabled attribute to prevent user changes. However, disabled form inputs are excluded from POST/GET data submissions, creating a dilemma when wanting to retain user-chosen values.

To overcome this challenge, a practical solution is to keep the element disabled but introduce an additional hidden input with an identical name and value. This allows the selected value to be captured and included in form data.

If you wish to re-enable the input later, employ an onchange event to duplicate its value into the hidden input and simultaneously disable (or remove) this hidden input.

Consider this code demonstration:

[Code Snippet]

1. Upon form submission, the submitted data is displayed.
2. Initially, the element for animal selection is disabled.
3. Clicking the "Enable" button reenables the element and updates its corresponding hidden input.

By employing this technique, you can effectively emulate the readonly functionality for tags while preserving the selected item in submitted form data.

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