my phone has locked and i can not open it

Hey there,

Do you mean you forget your iPhone passcode? If so this article will show you what you need to do to unlock your iPhone ☞this article without using computer see: How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support

If that option is not available, you will need to use a computer. See: If you forgot your iPhone passcode - Apple Support

if your iPhone it’s locked with another thing let us know with more details!