A PHP Error was encountered

Severity: Core Warning

Message: PHP Startup: Unable to load dynamic library 'php_mysql.dll' (tried: C:\Program Files\iis express\PHP\v7.3\ext\php_mysql.dll (The specified module could not be found.), C:\Program Files\iis express\PHP\v7.3\ext\php_php_mysql.dll.dll (The specified module could not be found.))

Filename: Unknown

Line Number: 0

Backtrace: