Warning: odbc_connect(): SQL error: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified, SQL state IM002 in SQLConnect code example

Example: [microsoft][odbc driver manager] data source name not found and no default driver specified (0) (sqldriverconnect)

# On windows check for:
  C:\Windows\System32\odbcad32.exe
  C:\Windows\SysWOW64\odbcad32.exe
# If none, download and install it