Thread

I am calling One view(a.php) from another view(b.php).
Can I declare a variable and assign a value to it in a.php and use it in b.php or do I have to declare it again in b.php.

View a.php:

some text
<?php
  $x = "I'm awesome";
  $this->load->view('b', array('x' => $x));
?>

View b.php

<?php echo $x; ?>

Final output:

some text
I'm awesome

Or you could use include which removes the need to call $this->load->view?

View a.php:

some text
<?php
  $x = "I'm awesome";
  $this->load->view('b', array('x' => $x));
?>

View b.php

<?php echo $x; ?>

Final output:

some text
I'm awesome

Actually I want to call a.php from b.php and create a variable in a.php and then use it in b.php

b.php will call the the a view

in

b.php view  $this->load->view('a');

then create a variable in a.php and the use it in b.php

in

a.php $variable="123";

then in b.php

$variable=$variable+1;

Using $this->load->view() you can only pass variables in one direction, not back from the child view (a.php) to the parent view (b.php). I guess you’d have to go with include() or require() like gRoberts proposed above.

If you want to know more about the functionality provided by $this->load->view I’d suggest you read the source code since it helps understanding this crucial part of CI very well.

Just to mention some functions used by $this->load->view

extract();
ob_start();
ob_get_contents();

These methods actually prevent returning values from any view to what is executed after the view was loaded.

But you may do something like this

In the controller

function your_function()
{
  // do your stuff here

  // then create a variable of the class
  $this->data = array();
  
  // do whatever you want to do know
}

in view a.php

some text
<?php
  $this->load->view('b');
?>

in view b.php

some text
<?php
  <?php $this->data['awesome_key'] = 'awesome value'; ?> 
?>

From my understanding of CI, this should access the variable $this->data we defined further above in the controller. But I’m not sure and unable to test at the moment 😉

Using $this->load->view() you can only pass variables in one direction, not back from the child view (a.php) to the parent view (b.php). I guess you’d have to go with include() or require() like gRoberts proposed above.

Actually, you can use $this->load->vars($var_array) and have them accessible globally.  If you do this, you don’t need to explicitly pass the $var_array to the view, either.