Drupal 7 Field collection on new node creation

Use $node = new StdClass(); to create the node through program. Or Example for creating node through program After node_save($node), You will get the 'nid' of created node

$nid = $node->nid;

Then again you load the created node from above nid

$node_loaded = node_load($node->nid); then create the field collection as,

$node = new StdClass(); 

$node ->-----// node values..... 

node_save($node); 

nid = $node-nid;// after saving the new it will return the nid in $node->nid in Drupal 7 

node_loaded = node_load($nid); 

$field_collection_item = entity_create('field_collection_item',array('field_name' => 'field_event_conference')); // fied_name  in the node manage fields


$field_collection_item->setHostEntity('node', $node_loaded);

$field_collection_item->field_fc_company[LANGUAGE_NONE]['0']['value'] = $company;

$field_collection_item->save();

Field collection contains another field collection.

$field_collection_item = entity_create('field_collection_item',array('field_name' => 'field_event_roadshow'));

$field_collection_item->setHostEntity('node', $node_loaded);

$field_collection_item->field_fc_company[LANGUAGE_NONE][0]['value'] = $company[0];

$field_collection_item->save();

$attendee_field_collection_item = entity_create('field_collection_item', array('field_name' => 'field_fc_management_attendees'));

$attendee_field_collection_item->setHostEntity('field_collection_item', $field_collection_item);

$attendee_field_collection_item->field_fc_mgmt_attendee_name[LANGUAGE_NONE][$k]['value'] = $manage[$k];

$attendee_field_collection_item->field_fc_mgmt_attendee_level[LANGUAGE_NONE][$k]['value'] = $level[$k];

$attendee_field_collection_item->save();

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