$configs = array(
    'credentials' => array(
    'ak' => '',
    'sk' => '',
    ),
    'endpoint' => 'bcc.bj.baidubce.com',  //bj
);
$client = new VpcClient($configs)

/**
 * @param string $name
 *        The name of vpc to be created.
 * @param string $cidr
 *        The CIDR of the vpc.
 * @param string $description
 *        The description of the vpc.
 * @param string $clientToken
 *        An ASCII string whose length is less than 64.
 *        The request will be idempotent if clientToken is provided.
 *        If the clientToken is not specified by the user, a random String generated by default algorithm will be used.
 * @param array $options
 * @return mixed
 */
 public function createVpc($name, $cidr, $description = null, $clientToken = null, $options = array()) {
     .......
 }

// testCreateVpc
$vpcName = 'test_vpc_name'
$vpcCidr = '192.168.240.0/20'
$description = 'test_vpc_descrition'
$resp = $client->createVpc($vpcName, $vpcCidr, $description);
print_r($resp);

/**
 * Return a list of vpcs owned by the authenticated user.
 * @param string $marker
 *        The optional parameter marker specified in the original request to specify
 *        where in the results to begin listing.
 *        Together with the marker, specifies the list result which listing should begin.
 *        If the marker is not specified, the list result will listing from the first one.
 * @param int $maxkeys
 *        The optional parameter to specifies the max number of list result to return.
 *        The default value is 1000.
 * @param boolean $isDefault
 *        The option param demotes whether the vpc is default vpc.
 * @param array $options
 * @return mixed
 */
public function listVpcs($marker = null, $maxkeys = null, $isDefault = null, $options = array()) {
    ......
}

// testListVpcs
$resp = $client->listVpcs(0, 1000, true);
print_r($resp);

/**
 * Get the detail information of specified vpc.
 * @param string $vpcId
 *        The id of the vpc
 * @param array $options
 * @return \stdClass
 */
public function getVpc($vpcId, $options = array()) {
    ......
}

// testGetVpc
$vpcId = ''
$resp = $client->deleteVpc($vpcId);
print_r($resp);

/**
 * Modify the special attribute to new value of the vpc owned by the user.
 * @param string $vpcId
 *        The id of the specified vpc
 * @param string $name
 *        The name of the specified vpc
 * @param string $description
 *        The option param to describe the vpc
 * @param string $clientToken
 *        An ASCII string whose length is less than 64.
 *        The request will be idempotent if clientToken is provided.
 *        If the clientToken is not specified by the user, a random String generated by default algorithm will be used.
 * @param array $options
 * @return mixed
 */
public function updateVpc($vpcId, $name, $description = null, $clientToken = null, $options = array()) {
    ......
}

// testUpdateVpc
$vpcId = ''
$vpcName = 'vpc-test'
$description = 'description-test'
$resp = $client->updateVpc($vpcId, $vpcName, $description);
print_r($resp);

/**
 * Delete the specified vpc owned by the user.All resource in the vpc must be deleted before the vpc itself
 * can be deleted.
 * @param string $vpcId
 *        The id of the specified vpc
 * @param string $clientToken
 *        An ASCII string whose length is less than 64.
 *        The request will be idempotent if clientToken is provided.
 *        If the clientToken is not specified by the user, a random String generated by default algorithm will be used.
 * @param array $options
 * @return mixed
 */
public function deleteVpc( $vpcId, $clientToken = null, $options = array()) {
    .......
}

// testDeleteVpc
$vpcId = '' 
$resp = $client->deleteVpc($vpcId);
print_r($resp);