laravel pass data from blade file to Controller - php

Question

I am trying to take data that a user inputs into a form, created in blade, and transport that data to my controller. At that point I can use a function in my controller to write the data into MySQL.
Here is the code for the form which I have in my blade file.
<form action="{{ route("users") }}" method="post">
<input type ="form" id="firstname"> firstname </input> <br>
<input type ="form" id="lastname"> lastname </input> <br>
<input type="form" id="email"> email </input> <br>
<input type="form" id="userlevel"> userlevel </input> <br>
<input type="form" id="password"> password </input> <br>
<br> <br>
<button type="submit"> Submit
</button>
</form>
Here is the code in my controller which writes data into MySQL. The code works when I am using dummy data, instead of the $name and $lastname variables.
public function users()
{
$name = $_POST["firstname"];
$lastname = $_POST["lastname"];
DB :: table("newUsers") -> insertGetId
(
array("firstname" => $name, "lastname" => $lastname, "email" => "test")
);
return view("pages.users");
}
I am currently getting an error that says
Undefined index: firstname
Ideally what I want to happen is for whatever the user entered for firstname and lastname to be written into my MySQL table.

Answer 1

You need to add name attributes to your inputs and format them correctly they should look more like:
<input type="text" id="firstname" name="firstname"></input>
If you are placing 'firstname' between your openning and closing input tags for a placholder value use the placeholder attribute instead.
<input type="text" id="firstname" name="firstname" placeholder="first name"></input>
But do be warned the placeholder attribute doesnt work in older browsers
Also dont use $_POST laravel has built in ways of getting the values from your form.
Laravel 5
$request->input('firstname');
like this:
public function users(Request $request)
{
$name = $request->input('firstname'); // This is better than using $_POST
$lastname = $request->input('lastname');
DB :: table("newUsers") -> insertGetId
(
array("firstname" => $name, "lastname" => $lastname, "email" => "test")
);
return view("pages.users");
}
Notice, I have passed in Request $request like a variable in the method users. You will also need to add use Illuminate\Http\Request as Request; to the top of your class:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request as Request; //here
class MyController extends Controller
{
}
Laravel 4
Input::get('firstname');

Answer 2

Change your Form as follows:
<form action="{{ route("users") }}" method="post">
<input type ="form" name=firstname" id="firstname" placeholder="First name">
<input type ="form" name=lastname" id="lastname">
<input type="form" name="email" id="email">
<button type="submit"> Submit </button>
</form>
You've to provide the name attribute to your form fields.
And in the controller, you don't have to use $_POST anymore.
Just use:
public function users(Request $request)
{
$firstname = $request->input('firstname');
$lastname = $request->input('lastname');
DB :: table("newUsers") -> insertGetId(
array("firstname" => $name, "lastname" => $lastname, "email" => "test")
);
return view("pages.users");
}

Answer 3

You can access form data with $request->get('first_name'), for example.
To make it work, add name tags to your form inputs and catch data, for example, if you use store action:
function store(Request $request){
}
In this case you also can easily validate input data by using custom Reuqest classes:
https://laravel.com/docs/master/validation#form-request-validation