Xdebug 3 config file

Question

I need help with a working step debugging Xdebug 3 config. I am running Xdebug 3.0.1 on Ubuntu server 20.04 with nginx, installed on an Oracle VirtualBox. My IDE is PhpStorm.

Everything is working fine (SSH tunnelling, SFTP, port forwarding), connection is established but step debugging does not begin.

My current Xdebug 3 config:

zend_extension=xdebug.so
xdebug.mode = debug
xdebug.client_host = 127.0.0.1
xdebug.client_port = 9003
XDEBUG_SESSION=PHPSTORM
xdebug.start_with_request=yes

Anyone configured Xdebug 3 in a working step debugging config and can help me??

phpinfo() Xdebug section captured from browser - it's quite lenghty

xdebug Version 3.0.1

Feature Enabled/Disabled    Docs
Development Aids    ✘ disabled  🖹
Coverage    ✘ disabled  🖹
GC Stats    ✘ disabled  🖹
Profiler    ✘ disabled  🖹
Step Debugger   ✔ enabled   🖹
Tracing ✘ disabled  🖹
Debugger    enabled
IDE Key no value
Directive   Local Value Master Value
xdebug.auto_trace   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.auto_trace" This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.auto_trace"
xdebug.cli_color    0   0
xdebug.client_discovery_header  no value    no value
xdebug.client_host  127.0.0.1   127.0.0.1
xdebug.client_port  9003    9003
xdebug.cloud_id no value    no value
xdebug.collect_assignments  Off Off
xdebug.collect_includes This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_includes"   This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_includes"
xdebug.collect_params   This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_params" This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_params"
xdebug.collect_return   Off Off
xdebug.collect_vars This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_vars"   This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.collect_vars"
xdebug.connect_timeout_ms   200 200
xdebug.coverage_enable  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.coverage_enable"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.coverage_enable"
xdebug.default_enable   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.default_enable" This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.default_enable"
xdebug.discover_client_host Off Off
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  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.gc_stats_enable"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.gc_stats_enable"
xdebug.gc_stats_output_dir  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.gc_stats_output_dir"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.gc_stats_output_dir"
xdebug.gc_stats_output_name gcstats.%p  gcstats.%p
xdebug.halt_level   0   0
xdebug.idekey   no value    no value
xdebug.log  no value    no value
xdebug.log_level    7   7
xdebug.max_nesting_level    256 256
xdebug.max_stack_frames -1  -1
xdebug.mode debug   debug
xdebug.output_dir   /tmp    /tmp
xdebug.overload_var_dump    This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.overload_var_dump"  This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.overload_var_dump"
xdebug.profiler_append  Off Off
xdebug.profiler_enable  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable"
xdebug.profiler_enable_trigger  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable_trigger"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable_trigger"
xdebug.profiler_enable_trigger_value    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable_trigger_value"  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_enable_trigger_value"
xdebug.profiler_output_dir  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_output_dir"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.profiler_output_dir"
xdebug.profiler_output_name cachegrind.out.%p   cachegrind.out.%p
xdebug.remote_autostart This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_autostart"   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_autostart"
xdebug.remote_connect_back  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_connect_back"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_connect_back"
xdebug.remote_enable    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_enable"  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_enable"
xdebug.remote_host  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_host"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_host"
xdebug.remote_log   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_log" This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_log"
xdebug.remote_log_level This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_log_level"   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_log_level"
xdebug.remote_mode  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_mode"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_mode"
xdebug.remote_port  This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_port"    This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_port"
xdebug.remote_timeout   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_timeout" This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.remote_timeout"
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   This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.show_mem_delta" This setting has been removed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#removed-"xdebug.show_mem_delta"
xdebug.start_upon_error default default
xdebug.start_with_request   1   1
xdebug.trace_enable_trigger This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_enable_trigger"   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_enable_trigger"
xdebug.trace_enable_trigger_value   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_enable_trigger_value" This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_enable_trigger_value"
xdebug.trace_format 0   0
xdebug.trace_options    0   0
xdebug.trace_output_dir This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_output_dir"   This setting has been changed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-"xdebug.trace_output_dir"
xdebug.trace_output_name    trace.%c    trace.%c
xdebug.trigger_value    no value    no value
xdebug.var_display_max_children 128 128
xdebug.var_display_max_data 512 512
xdebug.var_display_max_depth    3   3

xdebug_info() from browser

Version 3.0.1

Feature Enabled/Disabled    Docs
Development Aids    ✘ disabled  🖹
Coverage    ✘ disabled  🖹
GC Stats    ✘ disabled  🖹
Profiler    ✘ disabled  🖹
Step Debugger   ✔ enabled   🖹
Tracing ✘ disabled  🖹
Diagnostic Log
Message Docs
⚠️  [Step Debug] Creating socket for '127.0.0.1:9003', poll success, but error: Operation now in progress (29). 🖹
🛑  [Step Debug] Could not connect to debugging client. Tried: 127.0.0.1:9003 (through xdebug.client_host/xdebug.client_port) :-(   🖹
PHP
Build Configuration
Version 7.4.13
Debug Build no
Thread Safety   disabled
Settings
Configuration File (php.ini) Path   /etc/php/7.4/cli
Loaded Configuration File   /etc/php/7.4/fpm/php.ini
Scan this dir for additional .ini files /etc/php/7.4/fpm/conf.d
Additional .ini files parsed    /etc/php/7.4/fpm/conf.d/10-mysqlnd.ini, /etc/php/7.4/fpm/conf.d/10-opcache.ini, /etc/php/7.4/fpm/conf.d/10-pdo.ini, /etc/php/7.4/fpm/conf.d/15-xml.ini, /etc/php/7.4/fpm/conf.d/20-calendar.ini, /etc/php/7.4/fpm/conf.d/20-ctype.ini, /etc/php/7.4/fpm/conf.d/20-curl.ini, /etc/php/7.4/fpm/conf.d/20-dom.ini, /etc/php/7.4/fpm/conf.d/20-exif.ini, /etc/php/7.4/fpm/conf.d/20-ffi.ini, /etc/php/7.4/fpm/conf.d/20-fileinfo.ini, /etc/php/7.4/fpm/conf.d/20-ftp.ini, /etc/php/7.4/fpm/conf.d/20-gd.ini, /etc/php/7.4/fpm/conf.d/20-gettext.ini, /etc/php/7.4/fpm/conf.d/20-iconv.ini, /etc/php/7.4/fpm/conf.d/20-imagick.ini, /etc/php/7.4/fpm/conf.d/20-imap.ini, /etc/php/7.4/fpm/conf.d/20-intl.ini, /etc/php/7.4/fpm/conf.d/20-json.ini, /etc/php/7.4/fpm/conf.d/20-mbstring.ini, /etc/php/7.4/fpm/conf.d/20-mysqli.ini, /etc/php/7.4/fpm/conf.d/20-pdo_mysql.ini, /etc/php/7.4/fpm/conf.d/20-phar.ini, /etc/php/7.4/fpm/conf.d/20-posix.ini, /etc/php/7.4/fpm/conf.d/20-readline.ini, /etc/php/7.4/fpm/conf.d/20-shmop.ini, /etc/php/7.4/fpm/conf.d/20-simplexml.ini, /etc/php/7.4/fpm/conf.d/20-soap.ini, /etc/php/7.4/fpm/conf.d/20-sockets.ini, /etc/php/7.4/fpm/conf.d/20-sysvmsg.ini, /etc/php/7.4/fpm/conf.d/20-sysvsem.ini, /etc/php/7.4/fpm/conf.d/20-sysvshm.ini, /etc/php/7.4/fpm/conf.d/20-tokenizer.ini, /etc/php/7.4/fpm/conf.d/20-xdebug.ini, /etc/php/7.4/fpm/conf.d/20-xmlreader.ini, /etc/php/7.4/fpm/conf.d/20-xmlrpc.ini, /etc/php/7.4/fpm/conf.d/20-xmlwriter.ini, /etc/php/7.4/fpm/conf.d/20-xsl.ini, /etc/php/7.4/fpm/conf.d/20-zip.ini

Answer 1

LazyOne helped me, in the comments, to solve it. Apparently, the only issue for my setup was the creation of a SSH tunnel on port 9003 ( for Xdebug3) from here https://www.jetbrains.com/help/phpstorm/remote-debugging-via-ssh-tunnel.html. You can also do it on mobaxterm, not only on puTTY. I have checked and both worked fine.

Also make sure to check firewall sudo ufw status to make sure your VM firewall allows port 9003/tcp connection.

My Xdebug.ini for Xdebug 3 looks like this now:

zend_extension=xdebug.so
xdebug.mode = debug
xdebug.client_host = 127.0.0.1
;# For PhpStorm set below to 9000 (or update IDE's settings).
xdebug.client_port = 9003
xdebug.start_with_request=yes
xdebug.log="/var/log/nginx/xdebug.log"
xdebug.idekey = PHPSTORM
xdebug.discover_client_host=false