Form validation in codeigniter

This post will show validate a form in codeigniter.

ci-validations

Its necessary to validate your form to prevent user to upload any unwanted data.

full validations description of codeIgniter create a controller and load the form validation library and helper form and url.

$this->load->helper(array("form","url"));
$this->load->library('form_validation');

and load your view.

In view

create a html form

<form class="form-basic" method="post">
<input type="text" name="name">
<input type="text" name="email">
</form>

and set rules for validate your form in controller

$this->form_validation->set_rules('name', 'name', 'required');
$this->form_validation->set_rules('email', 'email', 'required|valid_email');

Run validations rule by

if ($this->form_validation->run() == FALSE){
        $this->pageData["from_status"] = "Form successfully validated";
    }

To show the errors, there are a default function by codeigniter validation_errors() . Call this function in your view file.

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Source : codeigniter

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