Adds an array of child documents

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- SolrInputDocument
- Adds an array of child documents

# SolrInputDocument::addChildDocuments

(PECL solr >= 2.3.0)

SolrInputDocument::addChildDocuments — Adds an array of child documents

### Description

public SolrInputDocument::addChildDocuments(array `&$docs`): void

Adds an array of child documents to the current input document.

### Parameters

`docs`

  An array of SolrInputDocument objects.

### Return Values

No value is returned.

### Errors/Exceptions

Throws SolrIllegalArgumentException on failure.

Throws SolrException on internal failure.

### Examples

Example #1 SolrInputDocument::addChildDocuments() example

    <?phpinclude "bootstrap.php";$options = array(    'hostname' => SOLR_SERVER_HOSTNAME,    'login'    => SOLR_SERVER_USERNAME,    'password' => SOLR_SERVER_PASSWORD,    'port'     => SOLR_SERVER_PORT,    'path'     => SOLR_SERVER_STORE_PATH,);$client = new SolrClient($options);$product = new SolrInputDocument();$product->addField('id', 'P-BLACK');$product->addField('cat', 'tshirt');$product->addField('cat', 'polo');$product->addField('content_type', 'product');$small = new SolrInputDocument();$small->addField('id', 'TS-BLK-S');$small->addField('content_type', 'sku');$small->addField('size', 'S');$small->addField('inventory', 100);$medium = new SolrInputDocument();$medium->addField('id', 'TS-BLK-M');$medium->addField('content_type', 'sku');$medium->addField('size', 'M');$medium->addField('inventory', 200);$large = new SolrInputDocument();$large->addField('id', 'TS-BLK-L');$large->addField('content_type', 'sku');$large->addField('size', 'L');$large->addField('inventory', 300);// add child documents $skus = [$small, $medium, $large];$product->addChildDocuments($skus);// add the product document block to the index$updateResponse = $client->addDocument(        $product,        true, // overwrite if the document exists        10000 // commit within 10 seconds);print_r($updateResponse->getResponse());

The above example will output something similar to:

    SolrObject Object
    (
        [responseHeader] => SolrObject Object
            (
                [status] => 0
                [QTime] => 5
            )
    )

### See Also

- SolrInputDocument::addChildDocument() - Adds a child document for block indexing
- SolrInputDocument::hasChildDocuments() - Returns true if the document has any child documents
- SolrInputDocument::getChildDocuments() - Returns an array of child documents (SolrInputDocument)
- SolrInputDocument::getChildDocumentsCount() - Returns the number of child documents