ErrorException Undefined array key 0 (View: C:\Users\Teacher\CNHSSystem\resources\views\section\index.blade.php) - laravel

Question

Hello everyone I was trying to pass value from my resource section blade
<form action="POST" action="{{ ('/import-students') }}">
{{ csrf_field() }}
<div class="form-group">
#foreach($programs as $program)
#if($section->program_id == $program->id)
<input type="hidden" name="strand" value="{{ $program->strand }}">
#endif
#endforeach
<input type="hidden" name="section" value="{{ $section->section_name }}">
<input type="hidden" name="grade_level" value="{{ $section->grade_level }}">
<input type="hidden" name="semester" value="{{ $section->semester }}">
<input type="hidden" name="school_year" value="{{ $section->school_year }}">
</div>
<button type="submit" name="submit">
add
</button>
<!-- <input type="submit" class="text-primary" name="submit"> -->
</form>
to an import blade from another resource
<form method="POST" action="{{ ('/upload-students') }}">
{{ csrf_field() }}
<div class="form-group">
<input type="hidden" name="strand" value="{{ request('strand') }}">
<input type="hidden" name="section" value="{{ request('section') }}">
<input type="hidden" name="grade_level" value="{{ request('grade_level') }}">
<input type="hidden" name="semester" value="{{ request('semester') }}">
<input type="hidden" name="school_year" value="{{ request('school_year') }}">
<input type="file" name="file" class="form-control" />
<button type="submit" class="btn btn-primary mt-1">Save</button>
</div>
</form>
the problem is that the action from the section blade doesn't seem to read the controller
public function importStudents(Request $request)
{
// dd($request);
$strand = $request->input('strand');
$section = $request->input('section');
$grade_level = $request->input('grade_level');
$semester = $request->input('semester');
$school_year = $request->input('school_year');
return view('student.import', $strand, $section, $grade_level, $semester, $school_year);
}
Here's my web route
Route::post('/import-students', [StudentController::class, 'importStudents']);
I'am hoping for your help maam/sirs
and a very big THANK YOU in advance for the help that I can receive maam/sirs.

Answer 1

First, correct forms:
<form action="POST" action="{{ ('/import-students') }}">
this form has two action (method="post" not action) etc. Open this page: https://laravel.com/docs/9.x/blade#forms and see how to write it correctly.
Second, in view('view', $data) the second parameter should contain data (https://laravel.com/docs/5.0/views). So:
return view('student.import', [
'strand' => $strand,
'section' => $section,
'grade_level' => $grade_level,
'semester' => $semester,
'school_year' => $school_year
]);