How to config XDebug 3, PHP 7.3 with PhpStorm 2020

Read on for details on all the new features and significant updates, along with a ton of GIFs!

• PHP 8: support for all language features, and even open-source Custom Attributes.
• PHPStan and Psalm can detect issues directly in the code editor or in batch mode.
• Xdebug 3 with streamlined configuration, and Debugger Improvements such as inline watches and interactive hints.

Make sure all config like this:

zend_extension=xdebug.so

xdebug.mode = debug,develop

xdebug.start_with_request = yes

xdebug.client_host = localhost

xdebug.client_port = 9003

xdebug.idekey = PHPSTORM

                 

Use Xdebug in PHPStorm

You can use one of these approaches:

Configure your Xdebug (by editing php.ini) to attempt to debug every php script. The key option:

Xdebug v2: xdebug.remote_autostart = 1

Xdebug v3: xdebug.start_with_request = yes

Add Xdebug session start parameter to the actual URL (XDEBUG_SESSION_START={{KEY}} -- http://xdebug.org/docs/remote ), for example: ?XDEBUG_SESSION_START=PHPSTORM

Pass Xdebug cookie as one of the headers (the one which is set by bookmarklet or browser extension, for example).

Thanks.