Accounting for Empty Results

In the last video we got our search form mostly working. 0:00 We just need to handle an empty results list. 0:04 When there are no items that match our search term. 0:06 We also want them to know when we are on a search results page, 0:09 as well as what the search term was. 0:13 Let's take a look at the finished results. 0:16 If I search for Alina, we'll see the page title 0:19 showing that we are on the search page and our search term Alena. 0:22 We also see that our search term did not return any results. 0:27 Let's add these messages back in work spaces. 0:31 Back in catalog.php let's scroll down to the h one header. 0:33 We're going to add another conditional. 0:42 We can check the same way that we did for the section. 0:44 If search is not equal to null. 0:47 Then we want to display a different header. 0:53 Search results for and our search term. 1:04 Since we're displaying user input as output, 1:07 let's filter that output with the built in function htmlspecialchars. 1:10 Now, let's add quotes around the search term. 1:22 We can't just add another double quote, so 1:26 we use our escape sequence of slash and then a quote. 1:28 Let's also add this to the end. 1:32 Now we add the else block, 1:39 containing our existing title including the other if-statement. 1:40 We have our header changed. 1:57 Now let's add a message if there are no search results. 1:59 After closing the H1 tag we're going to create another conditional. 2:02 This time we'll use an if total items is less than one. 2:06 If our total items is less than 1 then we're going to add a message. 2:20 But let's finish off our else block first. 2:24 After a message we're going to add an else that contains the resulting items as well 2:27 as our pagination. 2:31 Make sure you close this else block. 2:42 Now we're ready to go back up and add our message. 2:45 No items were found. 2:53 We'll also add another paragraph asking them to search again or 3:02 browse the full catalog. 3:06 Let's add our link to browse. 3:14 There's one more thing we need to do to make this work properly and 3:38 to clean things up a little more. 3:41 If our total items are less than 1, we really don't need to do any more 3:43 calculations before we grab the catalog results. 3:47 We also don't want to redirect to the full catalog. 3:50 So let's put all that within another conditional. 3:54 If our total items are greater than 0, then we can add these calculations. 4:06 We'll put all this within our if statement. 4:22 So if our total items are less than 1, we'll skip over this entire block. 4:25 We do need to add a couple default for total pages and offset. 4:30 We'll add them right after total items. 4:36 We can also move our pagination up here as well. 4:49 Great, let's take a look at this in the browser again. 5:08 Now when we do a search We see our search results, 5:12 and when we search for something that doesn't exist we see our message that no 5:17 items were found matching that search term. 5:22 The last thing we need to do is integrate the search feature 5:26 with the pagination feature. 5:29 We'll tackle that next. 5:30