What are some common reasons for the error message "Unknown(): Unable to load dynamic libary './php_sockets.dll'" in PHP?

The error message "Unknown(): Unable to load dynamic library './php_sockets.dll'" occurs when PHP is unable to load the sockets extension due to a missing or incorrect path to the php_sockets.dll file. To solve this issue, you need to ensure that the extension_dir in your php.ini file points to the correct directory where the php_sockets.dll file is located.

; Edit the php.ini file to specify the correct directory for the sockets extension
extension_dir = "ext"

; Enable the sockets extension
extension=php_sockets.dll