'Tree Name', 'header' => TRUE, ], $phylotree->name, ]; $leaf_type = 'N/A'; if ($phylotree->type_id) { $leaf_type = $phylotree->type_id->name; } $rows[] = [ [ 'data' => 'Leaf type', 'header' => TRUE, ], $leaf_type, ]; $description = 'N/A'; if ($phylotree->comment) { $description = $phylotree->comment; } $rows[] = [ [ 'data' => 'Description', 'header' => TRUE, ], $description, ]; // the $table array contains the headers and rows array as well as other // options for controlling the display of the table. Additional // documentation can be found here: // https://api.drupal.org/api/drupal/includes%21theme.inc/function/theme_table/7 $table = [ 'header' => $headers, 'rows' => $rows, 'attributes' => [ 'id' => 'tripal_phylogeny-table-base', 'class' => 'tripal-data-table', ], 'sticky' => FALSE, 'caption' => '', 'colgroups' => [], 'empty' => '', ]; // once we have our table array structure defined, we call Drupal's theme_table() // function to generate the table. print theme_table($table);