WILL's previously broken xdebug settings (the launch.json they now work perfectly!)

gistfile1.txt

vagrant@vvv:~$ switch_php_debugmod xdebug
 * Disabling active debug PHP mods
 * Disabling if present: 'xdebug, xhgui, tideways_xhprof, pcov'
 * Disabling active module: 'tideways_xhprof'
 * Enabling 'xdebug'
 * Restarting PHP FPM's so the change takes effect
 
 the error that  Iwas getting below:
vagrant@vvv:~$ tail -n 50 /var/log/php/xdebug-remote.log
[13246] I: Remote address found, connecting to 192.168.50.1:9000.
[13246] W: Creating socket for '192.168.50.1:9000', poll success, but error: Operation now in progress (29).
[13246] E: Could not connect to client. :-(
[13246] Log closed at 2020-07-17 14:27:47

gistfile2.txt

what happens in the debug console within VS Code; I set a breakpoint at the filter_example function within functions.php of my the twentynineteen (activated theme); but I receive the fatal error (below) even before the breakpoint is reached. 

function filter_example( $title ) {
	return 'I\'m Hooked on ' . $title;
}
add_filter( 'the_title', 'filter_example' );

PHP Notice:  Undefined index: wp_version in /home/skoraw/vvv/www/plain/public_html/wp-content/themes/twentynineteen/functions.php on line 15
PHP Fatal error:  Uncaught Error: Call to undefined function get_template_directory() in /home/skoraw/vvv/www/plain/public_html/wp-content/themes/twentynineteen/functions.php:16
Stack trace:
#0 {main}
  thrown in /home/skoraw/vvv/www/plain/public_html/wp-content/themes/twentynineteen/functions.php on line 16

info.php

xdebug.auto_trace	Off	Off
xdebug.cli_color	0	0
xdebug.collect_assignments	Off	Off
xdebug.collect_includes	On	On
xdebug.collect_params	1	1
xdebug.collect_return	Off	Off
xdebug.collect_vars	Off	Off
xdebug.coverage_enable	On	On
xdebug.default_enable	On	On
xdebug.dump.COOKIE	no value	no value
xdebug.dump.ENV	no value	no value
xdebug.dump.FILES	no value	no value
xdebug.dump.GET	no value	no value
xdebug.dump.POST	no value	no value
xdebug.dump.REQUEST	no value	no value
xdebug.dump.SERVER	no value	no value
xdebug.dump.SESSION	no value	no value
xdebug.dump_globals	On	On
xdebug.dump_once	On	On
xdebug.dump_undefined	Off	Off
xdebug.file_link_format	no value	no value
xdebug.filename_format	no value	no value
xdebug.force_display_errors	Off	Off
xdebug.force_error_reporting	0	0
xdebug.gc_stats_enable	Off	Off
xdebug.gc_stats_output_dir	/tmp	/tmp
xdebug.gc_stats_output_name	gcstats.%p	gcstats.%p
xdebug.halt_level	0	0
xdebug.idekey	VVVDEBUG	VVVDEBUG
xdebug.max_nesting_level	256	256
xdebug.max_stack_frames	-1	-1
xdebug.overload_var_dump	1	1
xdebug.profiler_append	Off	Off
xdebug.profiler_enable	Off	Off
xdebug.profiler_enable_trigger	On	On
xdebug.profiler_enable_trigger_value	no value	no value
xdebug.profiler_output_dir	/tmp	/tmp
xdebug.profiler_output_name	cachegrind.out.%t-%s	cachegrind.out.%t-%s
xdebug.remote_addr_header	no value	no value
xdebug.remote_autostart	On	On
xdebug.remote_connect_back	On	On
xdebug.remote_cookie_expire_time	3600	3600
xdebug.remote_enable	On	On
xdebug.remote_host	vvv.test	vvv.test
xdebug.remote_log	/var/log/php/xdebug-remote.log	/var/log/php/xdebug-remote.log
xdebug.remote_log_level	7	7
xdebug.remote_mode	req	req
xdebug.remote_port	9000	9000
xdebug.remote_timeout	200	200
xdebug.scream	Off	Off
xdebug.show_error_trace	Off	Off
xdebug.show_exception_trace	Off	Off
xdebug.show_local_vars	Off	Off
xdebug.show_mem_delta	Off	Off
xdebug.trace_enable_trigger	Off	Off
xdebug.trace_enable_trigger_value	no value	no value
xdebug.trace_format	0	0
xdebug.trace_options	0	0
xdebug.trace_output_dir	/tmp	/tmp
xdebug.trace_output_name	trace.%c	trace.%c
xdebug.var_display_max_children	-1	-1
xdebug.var_display_max_data	-1	-1
xdebug.var_display_max_depth	-1	-1

launch.json

{
  "version": "0.2.0",
  "configurations": [
      {
          "name": "Listen for XDebug",
          "type": "php",
    "request": "launch",
    "pathMappings": {
              "/srv/www/plain/public_html": "/home/skoraw/vvv/www/plain/public_html"
            },

    "port": 9000,
    "log": true,
          },
    {
    "name": "Launch currently open script",
    "type": "php",
    "program": "${file}",
    "cwd": "${fileDirname}",
    "request": "launch",
    "port": 9000
    }
  ]
}

xdebug-config

zend_extension=xdebug.so

[XDebug]

; xdebug.auto_trace
; Type: boolean, Default value: 0
; When this setting is set to on, the tracing of function calls will be enabled just before the
; script is run. This makes it possible to trace code in the auto_prepend_file.
xdebug.auto_trace = 0

; xdebug.collect_includes
; Type: boolean, Default value: 1
; This setting, defaulting to On, controls whether Xdebug should write the filename used in include
; (), include_once(), require() or require_once() to the trace files.
xdebug.collect_includes = 1

; xdebug.collect_params
; Type: integer, Default value: 0
;
; This setting, defaulting to 0, controls whether Xdebug should collect the parameters passed to
; functions when a function call is recorded in either the function trace or the stack trace.
xdebug.collect_params = 1

; xdebug.collect_return
; Type: boolean, Default value: 0
; This setting, defaulting to Off, controls whether Xdebug should write the return value of function
; calls to the trace files.
xdebug.collect_return = 0

; xdebug.collect_vars
; Type: boolean, Default value: Off
; This setting tells Xdebug to gather information about which variables are used in a certain scope.
; This analysis can be quite slow as Xdebug has to reverse engineer PHP's opcode arrays. This setting
; will not record which values the different variables have, for that use xdebug.collect_params. This
; setting needs to be enabled only if you wish to use xdebug_get_declared_vars().
xdebug.collect_vars = "Off"

; xdebug.default_enable
; Type: boolean, Default value: On
; If this setting is On then stacktraces will be shown by default on an error event. You can disable
; showing stacktraces from your code with xdebug_disable(). As this is one of the basic functions of
; Xdebug, it is advisable to leave this setting set to 'On'.
xdebug.default_enable = "On"

; xdebug.dump.*
; Type: string, Default value: Empty
; * = COOKIE, FILES, GET, POST, REQUEST, SERVER, SESSION. These seven settings control which data
; from the superglobals is shown when an error situation occurs. Each php.ini setting can consist of
; a comma separated list of variables from this superglobal to dump, but make sure you do not add
; spaces in this setting. In order to dump the REMOTE_ADDR and the REQUEST_METHOD when an error
; occurs, add this setting:
;
xdebug.dump.COOKIE = ""
xdebug.dump.FILES = ""
xdebug.dump.GET = ""
xdebug.dump.POST = ""
xdebug.dump.REQUEST = ""
xdebug.dump.SERVER = ""
xdebug.dump.SESSION = ""

; xdebug.dump_globals
; Type: boolean, Default value: 1
; Controls whether the values of the superglobals as defined by the xdebug.dump.* settings would be
; shown or not.
xdebug.dump_globals = 1

; xdebug.dump_once
; Type: boolean, Default value: 1
; Controls whether the values of the superglobals should be dumped on all error situations (set to
; Off) or only on the first (set to On).
xdebug.dump_once = 1

; xdebug.dump_undefined
; Type: boolean, Default value: 0
; If you want to dump undefined values from the superglobals you should set this setting to On,
; otherwise leave it set to Off.
xdebug.dump_undefined = 0

; xdebug.extended_info
; Type: integer, Default value: 1
; Controls whether Xdebug should enforce 'extended_info' mode for the PHP parser; this allows Xdebug
; to do file/line breakpoints with the remote debugger. When tracing or profiling scripts you
; generally want to turn off this option as PHP's generated oparrays will increase with about a third
; of the size slowing down your scripts. This setting can not be set in your scripts with ini_set(),
; but only in php.ini.
xdebug.extended_info = 1

; xdebug.file_link_format
; Type: string, Default value: *empty string* , Introduced in Xdebug 2.1
;
; This setting determines the format of the links that are made in the display of stack traces where
; file names are used. This allows IDEs to set up a link-protocol that makes it possible to go
; directly to a line and file by clicking on the filenames that Xdebug shows in stack traces.
xdebug.file_link_format = ""

; xdebug.idekey
; Type: string, Default value: *complex*
; Controls which IDE Key Xdebug should pass on to the DBGp debugger handler. The default is based on
; environment settings. First the environment setting DBGP_IDEKEY is consulted, then USER and as last
; USERNAME. The default is set to the first environment variable that is found. If none could be
; found the setting has as default ''.
xdebug.idekey = "VVVDEBUG"

; xdebug.manual_url
; Type: string, Default value: http://www.php.net
; This is the base url for the links from the function traces and error message to the manual pages
; of the function from the message. It is advisable to set this setting to use the closest mirror.
xdebug.manual_url = "http://www.php.net"

; xdebug.max_nesting_level
; Type: integer, Default value: 100
; Controls the protection mechanism for infinite recursion protection. The value of this setting is
; the maximum level of nested functions that are allowed before the script will be aborted.
xdebug.max_nesting_level = 256

; xdebug.overload_var_dump
; Type: boolean, Default value: 1 , Introduced in Xdebug 2.1
; By default Xdebug overloads var_dump() with its own improved version for displaying variables when
; the html_errors php.ini setting is set to 1. In case you do not want that, you can set this setting
; to 0, but check first if it's not smarter to turn off html_errors.
xdebug.overload_var_dump = 1

; xdebug.profiler_append
; Type: integer, Default value: 0
; When this setting is set to 1, profiler files will not be overwritten when a new request would map
; to the same file (depending on the xdebug.profiler_output_name setting. Instead the file will be
; appended to with the new profile.
xdebug.profiler_append = 0

; xdebug.profiler_enable
; Type: integer, Default value: 0
; Enables Xdebug's profiler which creates files in the profile output directory. Those files can be
; read by KCacheGrind to visualize your data. This setting can not be set in your script with ini_set
; ().
xdebug.profiler_enable = 0

; xdebug.profiler_enable_trigger
; Type: integer, Default value: 0
; When this setting is set to 1, you can trigger the generation of profiler files by using the
; XDEBUG_PROFILE GET/POST parameter. This will then write the profiler data to defined directory.
xdebug.profiler_enable_trigger = 1

; xdebug.profiler_output_dir
; Type: string, Default value: /tmp
; The directory where the profiler output will be written to, make sure that the user who the PHP
; will be running as has write permissions to that directory. This setting can not be set in your
; script with ini_set().
xdebug.profiler_output_dir = "/tmp"

; xdebug.profiler_output_name
; Type: string, Default value: cachegrind.out.%p
;
; This setting determines the name of the file that is used to dump traces into. The setting
; specifies the format with format specifiers, very similar to sprintf() and strftime(). There are
; several format specifiers that can be used to format the file name.
;
; See the xdebug.trace_output_name documentation for the supported specifiers.
xdebug.profiler_output_name = "cachegrind.out.%t-%s"

; xdebug.remote_autostart
; Type: boolean, Default value: 0, VVV Default value: 1
; Normally you need to use a specific HTTP GET/POST variable to start remote debugging (see Remote
; Debugging). When this setting is set to 'On' Xdebug will always attempt to start a remote debugging
; session and try to connect to a client, even if the GET/POST/COOKIE variable was not present.
xdebug.remote_autostart = 1

; xdebug.remote_enable
; Type: boolean, Default value: 0
; This switch controls whether Xdebug should try to contact a debug client which is listening on the
; host and port as set with the settings xdebug.remote_host and xdebug.remote_port. If a connection
; can not be established the script will just continue as if this setting was Off.
xdebug.remote_enable = 1

; xdebug.remote_handler
; Type: string, Default value: dbgp
; Can be either 'php3' which selects the old PHP 3 style debugger output, 'gdb' which enables the GDB
; like debugger interface or 'dbgp' - the brand new debugger protocol. The DBGp protocol is more
; widely supported by clients. See more information in the introduction for Remote Debugging.
xdebug.remote_handler = "dbgp"

; xdebug.remote_host
; Type: string, Default value: localhost
; Selects the host where the debug client is running, you can either use a host name or an IP
; address.
;xdebug.remote_host = "10.42.0.1"
;xdebug.remote_host = "10.0.2.2"
xdebug.remote_host = "vvv.test"


; xdebug.remote_log
; Type: string, Default value: none
; If set to a value, it is used as filename to a file to which all remote debugger communications are
; logged. The file is always opened in append-mode, and will therefore not be overwritten by default.
; There is no concurrency protection available.
xdebug.remote_log = /var/log/php/xdebug-remote.log

; xdebug.remote_mode
; Type: string, Default value: req
;
; Selects when a debug connection is initiated. This setting can have two different values:
;
; req
;     Xdebug will try to connect to the debug client as soon as the script starts.
; jit
;     Xdebug will only try to connect to the debug client as soon as an error condition occurs.
xdebug.remote_mode = "req"

; xdebug.remote_port
; Type: integer, Default value: 9000
; The port to which Xdebug tries to connect on the remote host. Port 9000 is the default for both the
; client and the bundled debugclient. As many clients use this port number, it is best to leave this
; setting unchanged.
xdebug.remote_port = 9000

; xdebug.show_exception_trace
; Type: integer, Default value: 0
; When this setting is set to 1, Xdebug will show a stack trace whenever an exception is raised -
; even if this exception is actually caught.
xdebug.show_exception_trace = 0

; xdebug.show_local_vars
; Type: integer, Default value: 0
; When this setting is set to something != 0 Xdebug's generated stack dumps in error situations will
; also show all variables in the top-most scope. Beware that this might generate a lot of
; information, and is therefore turned off by default.
xdebug.show_local_vars = 0

; xdebug.show_mem_delta
; Type: integer, Default value: 0
; When this setting is set to something != 0 Xdebug's human-readable generated trace files will show
; the difference in memory usage between function calls. If Xdebug is configured to generate
; computer-readable trace files then they will always show this information.
xdebug.show_mem_delta = 0

; xdebug.trace_format
; Type: integer, Default value: 0
; The format of the trace file.
;
; See the introduction of Function Traces for a few examples.
xdebug.trace_format = 0

; xdebug.trace_options
; Type: integer, Default value: 0
; When set to '1' the trace files will be appended to, instead of being overwritten in subsequent
; requests.
xdebug.trace_options = 0

; xdebug.trace_output_dir
; Type: string, Default value: /tmp
; The directory where the tracing files will be written to, make sure that the user who the PHP will
; be running as has write permissions to that directory.
; xdebug.trace_output_name
xdebug.trace_output_dir = "/tmp"

; Type: string, Default value: trace.%c
;
; This setting determines the name of the file that is used to dump traces into. The setting
; specifies the format with format specifiers, very similar to sprintf() and strftime(). There are
; several format specifiers that can be used to format the file name. The '.xt' extension is always
; added automatically.
xdebug.trace_output_name = "trace.%c"

; xdebug.var_display_max_children
; Type: integer, Default value: 128
; Controls the amount of array children and object's properties are shown when variables are
; displayed with either xdebug_var_dump(), xdebug.show_local_vars or through Function Traces. This
; setting does not have any influence on the number of children that is send to the client through
; the Remote Debugging feature.
xdebug.var_display_max_children = -1

; xdebug.var_display_max_data
; Type: integer, Default value: 512
; Controls the maximum string length that is shown when variables are displayed with either
; xdebug_var_dump(), xdebug.show_local_vars or through Function Traces. This setting does not have
; any influence on the amount of data that is send to the client through the Remote Debugging
; feature.
xdebug.var_display_max_data = -1

; xdebug.var_display_max_depth
; Type: integer, Default value: 3
; Controls how many nested levels of array elements and object properties are when variables are
; displayed with either xdebug_var_dump(), xdebug.show_local_vars or through Function Traces. This
; setting does not have any influence on the depth of children that is send to the client through the
; Remote Debugging feature.
xdebug.var_display_max_depth = -1


;; ADDED BY WILL 2020-07-15, FOR
xdebug.remote_connect_back = 1