How can I make sure that when I delete a photo off of my iPhone that they stay on my iPad and Mac?

[iMore Question]

deleting photo from phone

I'm having trouble keeping photos on my iPad and iMac if i delete them from my phone
I've had to do this as my phone memory was full
how cani get around this`there must be some way?

 

[Bigeric23]

Re: deleting photo from phone

This would be a good read:

iCloud Photo Library ? Everything you need to know! | iMore