# Method: PHPCrawler::initChildProcess()

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Overridable method that will be called by every used child-process just before it starts the crawling-procedure.
Signature:

public initChildProcess()

Parameters:

No parameter-descriptions available.

Returns:

No information

Description:

Every child-process of the crawler will call this method just before it starts it's crawling-loop from within it's
process-context.
So when using the multi-process mode "PHPCrawlerMultiProcessModes::MPMODE_CHILDS_EXECUTES_USERCODE", this method
should be overidden and used to open any needed database-connections, file streams or other similar handles to ensure
that they will get opened and accessible for every used child-process.
Example:`class MyCrawler extends PHPCrawler
{
protected $mysql_link;
function initChildProcess()
{
// Open a database-connection for every used process
$this->mysql_link = mysql_connect("myhost", "myusername", "mypassword");
mysql_select_db ("mydatabasename", $this->mysql_link);
}
function handleDocumentInfo($PageInfo)
{
mysql_query("INSERT INTO urls SET url = '".$PageInfo->url."';", $this->mysql_link);
}
}
// Start crawler with 5 processes
$crawler = new MyCrawler();
$crawler->setURL("http://www.any-url.com");
$crawler->goMultiProcessed(5, PHPCrawlerMultiProcessModes::MPMODE_CHILDS_EXECUTES_USERCODE);`