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Fatal error: function call undefined form_open () in c

I got this error and guessed, I know where I was wrong. I'm new to codeigniter, so I'm sure something stupid can anyone figure this out from tnx in advance.

create_view.php

<body> <?php echo form_open('create'); ?> <ul id="accordion"> <li> <a>Survey Creation</a> <ul id="survay"> <li>Enter a question:<?php echo form_input('Question')?></li> <li>Answer A: <?php echo form_input('qA' );?></li> <li>Answer B: <?php echo form_input('qB' );?></li> <li>Answer C: <?php echo form_input('qC' );?></li> <li><?php echo form_submit('submit', 'Set This Question' );?></li> </ul> </li>

create.php

  <?php class Create extends CI_Controller{ function index(){ $this->load->view('create_view'); } // insert data function create1() { $data = array( 'Question' => $this->input->post('Question'), 'qA' => $this->input->post('qA'), 'qB' => $this->input->post('qB'), 'qC' => $this->input->post('qC'), ); $this->create_model->add_record($data); $this->home(); } } ?>
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5 answers

It looks like you forgot to load the form helper . Use application/config/autoload.php or add the following line to the controller before loading the view:

 $this->load->helper('form');
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You can also download these helpers on all controllers. Go to your configuration folder and open the autoload.php file in any editor, and then load the required assistant as follows:

 $autoload['helper'] = array('url','form');
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Upload your CI helper to the controller $ This-> load-> helper ('form');

 class Create extends CI_Controller{ function index(){ $this->load->view('create_view'); $this->load->helper('form');

or make autoload assistants on all consoles. Open the application /config/autoload.php

  $autoload['helpers'] = array('form','myhelper');
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Before using this function, you need to download the "Helper". Add this line:

 $this->load->helper('form');
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Make sure the following line is called in the controller:

 $this->load->library('form_validation'); //make sure to have it, before view call $this->load->view('profile');
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