something weird with my iphone keyboard

Try a simple Forced Restart:

• Press and quickly release the volume up button
• Then immediately press and quickly release the volume down button
• Then immediately press and KEEP HOLDING the side power button until the screen goes dark and keep holding until you see the Apple Logo (can take several seconds), then let go

See if the issue is resolved after signing back into your iPhone.

One last thing. Open the Settings App on your iPhone. Tap General. Tap Keyboards. Delete the keyboard on your iPhone. Then add it back. If that doesn't fix this, contact Apple Support for help.

Try double tapping using three fingers to zoom out.

i have like this problem , how i can solve ?