trim function is not working in model file of codeIgniter

trim() as in you code just remove space at beginning and end

    trim($_FILES["servicePhoto"]['name'])

you want remove also space between words you need replace

   str_replace(' ', '', $_FILES["servicePhoto"]['name']);

php mysql codeigniter codeigniter-3

another codeigniter helper you can use is url_title() function.

something like this will work for you.

url_title(trim($_FILES["servicePhoto"]['name']));

it replaces space with dash -.

CodeHunter