How to get function helper text to float above cursor while typing?

This YouTuber does it here:

https://youtu.be/NrlY-xeqHBg?t=255

Notice the in_array helper floats above his cursor while he types, showing him the param definitions...

My PHPStorm doesn't do this, it will only show me definitions if I hit Ctrl+Space after typing the name of the function (but not after typing the opening parentheses), and I'm not seeing where in settings to activate it.

3 comments

File | Settings | Editor | General | Code Completion > Show parameter info popup checkbox

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Thanks. I'm looking for how to make this activate with a keyboard shortcut, but the only thing listed is Main Menu > View > Parameter Info, with shortcut Option-Shift-Space (Mac), which pops up something above it with all the function parameters, which is nice, but it seems a bit duplicate to Cmd+Space which shows the same thing in a different format below but only if I haven't typed the opening parentheses yet:

I'm a little confused on the logic behind all of this, and not sure what the "params (smart function parameters completion)" text means.

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Sorry for the misunderstanding but does not it appear automatically once you type in the same manner as on YouTube clip? Also, "Main Menu > View > Parameter Info" is doing exactly the same thing but with a keypress.

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