Drupal Unexpected T_CONSTANT_ENCAPSED_STRING

What is T_CONSTANT_ENCAPSED_STRING?

This is a common PHP error resulting from mismatched strings or failing to terminate a line of code correctly. This is a fairly common error with new Drupal Installations and usually is due to an error in the file <root>/sites/default/settings.php.

What Causes The Error?

The T_CONSTANT_ENCAPSED_STRING error is often caused by accidentally deleting a single quote (') or semicolon (;) while modifying $db_url or $base_url in the file <root>/sites/default/settings.php. If your username or password contains a quote that may also produce this error.

How to Resolve This Error?

Simply add in the missing single quote (') or semicolon and reload the page that was giving you troubles (commonly reloading the root domain when attempting a new installation of Drupal). If that still doesn't work replace settings.php with the original file and add in your username, password, and database name again.