PHP中的JSON产品查看器[关闭]

Question

I need to create a website that pulls data from a JSON API. The information is a product catalogue that contains the following array in JSON format.

[{
    "id": "1",
    "name": "Product Name",
    "Description": "Lorem Ipsum"
},
{
    "id": "2",
    "name": "Product no 2"
    "Description": "Lorem Ipsum"
}]

I've already successfully used curl to get the JSON and json_decode the data.

I need my website to have an index page that contains list of products (with just the name) that links to a more detail page that contains the description.

I need help on how to best approach this.

Thanks

Answer 1

From what I understand, you need index.php do both jobs: act as a catalog and as a product presentation page.

The first thing you need to do is check if $_GET['product'] is set, in which case you should present the product, otherwise render a catalogue.

You could start by doing the following:

$cat=json_decode($retrieved_json);
if(!isset($_GET['product']))
  {
  // act as a catalog
  $n=count($cat);
  echo "<h3><em>$n</em> products:</h3>
<ul>";
  foreach($cat as $product) 
    echo "<li><a href='?product={$product->id}'>{$product->name}</a></li>
";
  echo "</ul>";
  }
else
  {
  $product=$product_by_id($_GET['roduct']);
  if($product)
    {
    // act as a product presentation, if the id exists
    echo "<h3>{$product->name}</h3>
";
    echo "<p>{$product->Description}</p>
";
    echo "<p><em>Product id:<strong>{$product->id}</strong></em></p>
";
    }
  else
    // display an error for non-existent ids
    echo "<h2>No product with id={$_GET['roduct']} was found!</h2>";
  }

// returns $cat's entry for the product $id
// or false if not found
function product_by_id($id)
  {
  global $cat;
  for($i=0;($i<count($cat)))&&($cat[$i]->id!=$id));$i++) {}
  return ($i<count($cat)?$cat[$i]:false);
  }