Este tema describe cómo usar OSS SDK for PHP 2.0 para eliminar las etiquetas de un objeto.
Notas
El código de ejemplo de este tema usa el ID de región
cn-hangzhou, correspondiente a la región China (Hangzhou). De forma predeterminada, se usa un endpoint público para acceder a los recursos de un bucket. Si accede a los recursos desde otro servicio de Alibaba Cloud ubicado en la misma región que el bucket, use un endpoint interno. Para obtener más información sobre las regiones y los endpoints compatibles con OSS, consulte Regions and endpoints.Para eliminar las etiquetas de un objeto, necesita el permiso
oss:DeleteObjectTagging. Para obtener más información, consulte Attach a custom policy to a RAM user.
Los objetos se identifican mediante un par clave-valor. Para obtener más información, consulte Object tagging.
Para conocer más detalles sobre cómo eliminar etiquetas, consulte DeleteObjectTagging.
Código de ejemplo
A continuación se muestra el código de ejemplo para eliminar las etiquetas de un objeto específico dentro de un bucket:
<?php
// Introduce autoload files to load dependent libraries.
require_once __DIR__ . '/../../vendor/autoload.php';
use AlibabaCloud\Oss\V2 as Oss;
// Specify descriptions for command line arguments.
$optsdesc = [
"region" => ['help' => The region in which the bucket is located.', 'required' => True], // (Required) Specify the region in which the bucket is located.
"endpoint" => ['help' => The domain names that other services can use to access OSS.', 'required' => False], // (Optional) Specify the endpoint that can be used by other services for accessing OSS.
"bucket" => ['help' => The name of the bucket, 'required' => True], // (Required) Specify the name of the bucket.
"key" => ['help' => The name of the object, 'required' => True], // (Required) Specify the name of the object.
];
// Convert the descriptions to a list of long options required by getopt.
// Add a colon (:) to the end of each parameter to indicate that a value is required.
$longopts = \array_map(function ($key) {
return "$key:";
}, array_keys($optsdesc));
// Parse the command line arguments.
$options = getopt("", $longopts);
// Check whether the required parameters are configured.
foreach ($optsdesc as $key => $value) {
if ($value['required'] === True && empty($options[$key])) {
$help = $value['help']; // Obtain help information for the parameters.
echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
exit(1); // Exit the program if the required parameters are not configured.
}
}
// Obtain values from the parsed parameters.
$region = $options["region"]; // The region in which the bucket is located.
$bucket = $options["bucket"]; // The name of the bucket.
$key = $options["key"]; // The name of the object.
// Obtain access credentials from environment variables.
// Use EnvironmentVariableCredentialsProvider to retrieve the AccessKey ID and AccessKey secret from environment variables.
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider();
// Use the default configuration of the SDK.
$cfg = Oss\Config::loadDefault();
$cfg->setCredentialsProvider($credentialsProvider); // Specify the credential provider.
$cfg->setRegion($region); // Specify the region in which the bucket is located.
if (isset($options["endpoint"])) {
$cfg->setEndpoint($options["endpoint"]); // Specify the endpoint if one is provided.
}
// Create an OSSClient instance.
$client = new Oss\Client($cfg);
// Create a PutObjectTaggingRequest object to delete the tags configured for the object.
$request = new Oss\Models\DeleteObjectTaggingRequest(
bucket: $bucket,
key: $key
);
// Delete the tags of the object.
$result = $client->deleteObjectTagging($request);
// Display the result of deletion.
printf(
'status code:' . $result->statusCode . PHP_EOL . // The HTTP status code. For example, HTTP status code 204 indicates that the tags are deleted.
'request id:' . $result-> requestId. PHP_EOL // The request ID, which is used to debug or trace a request.
);