form-fix-array

This makes sure that form data is handled correctly when sent to a server.

While arrays are a natively supported feature of HTTP form data (whether URL-encoded or multipart/form-data), implementation differences exist. Especially PHP is notorious for refusing to recognize a field as an array unless it specifically has array brackets in the field name. This means that field=val1&field=val2 will simply be interpreted as val2, whereas field[]=val1&field[]=val2 will be interpreted as an array containing val1 and val2.

This module ensures that all fields containing an array of values have a [] suffix, adding it where necessary (and doing nothing where it is already there). That way, every receiving server should be able to handle the request.

It does not currently support objects ('associative arrays'), only plain arrays.

License

WTFPL or CC0, whichever you prefer. A donation and/or attribution are appreciated, but not required.

Donate

My income consists entirely of donations for my projects. If this module is useful to you, consider making a donation!

You can donate using Bitcoin, PayPal, Gratipay, Flattr, cash-in-mail, SEPA transfers, and pretty much anything else.

Contributing

Pull requests welcome. Please make sure your modifications are in line with the overall code style, and ensure that you're editing the .coffee files, not the .js files.

Build tool of choice is gulp; simply run gulp while developing, and it will watch for changes.

Be aware that by making a pull request, you agree to release your modifications under the licenses stated above.

Usage

var formFixArray = require("form-fix-array");

var sampleFormData = {
    "fieldOne": "value 1",
    "fieldTwo": ["value 2a", "value 2b"],
    "fieldThree[]": ["value 3a", "value 3b"]
}

var fixedFormData = formFixArray(sampleFormData);

/* Result:
{
    "fieldOne": "value 1",
    "fieldTwo[]": ["value 2a", "value 2b"],
    "fieldThree[]": ["value 3a", "value 3b"]
}
*/