Check if blob exists in Azure

问题

I'm wondering if there is a way to check if a blob exists in a container?

    $blob = $blobRestProxy->getBlob("mycontainer", "myblobname");
    if($blob){
        return 'exists';
    } else {
        return 'not exists';
    }

I've tried this but im getting this message whenever the blob does not exists:

BlobNotFoundThe specified blob does not exist.

If exists, the code returns 'exists' naturally. I'm not interested in listing all blobs in the container and iterating until I find a match cause I have a lot of blobs.

回答1:

When the blob does not exist, the function getBlob will raise a ServiceException exception and exit the PHP progress, the following code will not work.

Please try to add the try catch statement in your code, E.G.

try {
    $blob = $tableRestProxy->getBlob("mycontainer", "myblobname");
    return 'exists';
} catch (ServiceException $e) {
    return 'not exists';
} 

回答2:

so:

$exists = $storageClient->blobExists(<container name>, <blob name>);

Should give you what you're after.

来源：https://stackoverflow.com/questions/37297646/check-if-blob-exists-in-azure