abutler3

https://acquia-academy.gitbooks.io/study-guide-drupal-8-site-builder-exam/content/study-guide.html
http://www.tanay.co.in/blog/cracking-acquia-certified-drupal-site-builder-certification.html
https://www.4sitestudios.com/blog/when-to-use-content-types-taxonomies-and-custom-entities-in-drupal


What are blocks?
  - https://www.drupal.org/docs/8/core/modules/block/overview
  - https://www.drupal.org/docs/user_guide/en/block-concept.html
  
  - Blocks are individual pieces of your site’s web page layout. 

abutler3

  // is this a photo stored in the site (for a Person node)?
  // if so, we can use Image Styles to generate the different sizes needed
  if(strpos($photo_uri,"public:") === 0){
    $regular = image_style_url($preset,$photo_uri);
    $retina = image_style_url($preset . "_2x",$photo_uri);
    $img_properties = image_get_info(image_style_path($preset, $photo_uri ));
    $photo_height = $img_properties['height'];
    $photo_width = $img_properties['width'];
  } else {
    // We have to explicitly specify the dimensions for photos coming from the photo services feed

abutler3

Given an array of integers, can you find the sum of its elements?
Input Format
The first line contains an integer, , denoting the size of the array.
The second line contains space-separated integers representing the array's elements.
Output Format
Print the sum of the array's elements as a single integer.

// If variable is an array

// If array has all numbers