How to Disable Spell Checking for All My Projects

Solution 1:

There is no "global" setting for existing projects -- it needs to be done for each project individually (Spell Checker is an inspection and Inspections are configured on per-project level).

You need to disable whole group at Settings/Preferences | Editor | Inspections | Proofreading (used to be Spelling before).

You can configure it to be disabled by default for any future new projects at File | New Projects Setup | Settings for New Projects... (previously was File | Default Settings).

https://www.jetbrains.com/help/phpstorm/2021.2/configure-project-settings.html#new-default-settings

Also check suggestion by @Amged -- edit your Color Schema to simply remove any visual effects for misspelt words: Settings/Preferences | Editor | Colors & Fonts | General --> Errors & Warnings | Typo.

This way it will affect ALL projects straight away as long you use that Color Schema. It will also allow you to still list all typos if you run Code | Inspect Code....

The possible down-side: spell checker still runs; you will see extra 2 menu entries when right clicking on such words.

Solution 2:

You could leave the Spell Checking inspection enabled and just remove the visual effect in the editor by going to Settings | Colors & Fonts | General | Typo and unchecking Effect. This way it will not highlight the typos in the editor but when you manually run the code inspector the typos are listed.