zencart中query_factory.php中连接mysql次数

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　　query_factory.php : includes / classes / db / mysql
　　

if (!function_exists('mysql_connect')) die ('Call to undefined function: mysql_connect().  Please install the MySQL Connector for PHP');
$connectionRetry = 10;  // lian jie ci shu
while (!isset($this->link) || ($this->link == FALSE && $connectionRetry !=0) )
{
$this->link = @mysql_connect($zf_host, $zf_user, $zf_password, true);
$connectionRetry--;
}