Highlighting in Solr using PHP and Solarium

Let us try regular highlighting using PHP. Search for harry in our index and highlight two fields—name and series_t as shown in the following code:

  $query->setQuery('harry');
  $query->setFields(array('id','name','author','series_t','score','last_modified'));

First get the highlighting component from the following query:

  $hl = $query->getHighlighting();

Set fields we want to highlight using the following query:

  $hl->setFields('name,series_t');

Set the highlighting HTML tags as bold using the following query:

  $hl->setSimplePrefix('<strong>');
  $hl->setSimplePostfix('</strong>');

Set the maximum number of highlighted snippets to be generated per field. In this case any number of highlighted snippets from 0 to 2 can be generated as shown in the following query:

  $hl->setSnippets(2);

Set the size in characters of fragments to consider for highlighting. 0 uses the whole field value without any fragmentation as shown...