Kyle Boddy Entrepreneur, Hacker, Biomechanics Researcher, Baseball Lover.

array_walk() in CodeIgniter

Recently I needed to call trim() for multiple variables in an array in my CodeIgniter application, but had issues with calling the custom function using array_walk() to do so. A bit of Googling and experimentation led me to this answer:

function stuff()
    {
	    // trim array data
	    array_walk($data, array($this, 'trim_value'));

	    $this->load->view('preview_view', $data);
	}

	function trim_value(&$value)
	{
	    $value = trim($value);
	}

You have to pass array_walk() or array_walk_recursive() an array with $this as a defined variable/pointer.

Try that piece of code if you're having an issue!