Error PHP8.1 Azure Storage

[tairolima]

It's giving an error when using PHP 8.1

microsoft/azure-storage-common = 1.5.2

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /DIR_APP/vendor/microsoft/azure-storage-common/src/Common/Internal/Utilities.php on line 615

[SamMousa]

This can be worked around by silencing deprecation errors:

error_reporting(E_ALL & ~E_DEPRECATED);

[nazana01]

can this be fixed instead of hiding the depreciated message?

[warlleyj]

Deprecated Functionality: substr(): Passing null to parameter #1 ($string) of type string is deprecated

Could someone please do the merge?
Azure/azure-storage-php#351

I appreciate it!