Updating documents in Solr using PHP

Let us see how we can use PHP code along with Solarium library to update documents in Solr.

1. First check if there are any documents with the word smith in our index.

   http://localhost:8080/solr/collection1/select/?q=smith

2. We can see numFound=0, which means that there are no such documents. Let us add a book to our index with the last name of the author as smith.

   $updateQuery = $client->createUpdate();
   $testdoc = $updateQuery->createDocument();
   $testdoc->id = 123456789;
   $testdoc->cat = 'book';
   $testdoc->name = 'Test book';
   $testdoc->price = 5.99;
   $testdoc->author = 'Hello Smith';
   $updateQuery->addDocument($testdoc);
   $updateQuery->addCommit();
   $client->update($updateQuery);

3. If we run the same select query again, we can see that now there is one document in our index with the author as Smith. Let us now update the author's name to Jack Smith and the price tag to 7.59:

   $testdoc = $updateQuery->createDocument();
   $testdoc->id = 123456789...