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Helper function to make input->post return empty string instead of false

Hi there

I'm new to CI. Usually, I do this:

$name = isset($_POST['name']) ?: '';

This means when I insert $name into my database, if it doesn't exist no error/warning is thrown, and an empty string gets inserted.

I've quickly found out that in CodeIgniter $this->input->post('name') returns false if the index doesn't exist, and it ends up being converted to 0 in my database. Even if $this->input->post('name') where to return null it's still a problem if the field in question doesn't allow null in the database.

So I've written a helper called "input_data" as follows:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

if ( ! function_exists('post'))
function post($index = '')
  $CI =& get_instance();
  return $CI->input->post($index) ?: '';

Now instead of doing

$name = $this->input->post('name') ?: '';

I can do:

$name = post('name');

I wondered if this approach is OK, and if it's safe to call my helper function something as simple as post() ?


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