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We'll use our collection to create a shopping list that combines all recipe ingredients.
NOTE in_array vs array_key_exists
in_array
will check the "value" in an array while array_key_exists
will check the "key" in an array.
Code Sample
This code will NOT handle all plural vs singular ingredients, but this will get you started. You could be adding "es" or changing "y" to "ies".
public function getCombinedIngredients()
{
$ingredients = array();
foreach ($this->recipes as $recipe) {
foreach ($recipe->getIngredients() as $i) {
$item = $i['item'];
if (strpos($item, ",")) {
$item = strstr($item, ",", true);
}
if (array_key_exists($item . "s", $ingredients)) {
$item .= "s";
} else if (array_key_exists(substr($item,0,-1),$ingredients)) {
$item = substr($ingredient,0,-1);
}
$ingredients[$item][] = array($i["amount"],$i["measure"]);
}
}
return $ingredients;
}
Documentation
Challenge
Setup calculations to return the amount of each item.
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