And applying for a Ph.D. in a foreign school mainly depends on your research ability.
Generally speaking, it is necessary to determine the research direction to be done and which tutor to apply for a doctorate.
Then prepare the corresponding resume and research plan, and contact the tutor directly, which is commonly called magnetism.
After the tutor communicates with you and makes sure that you are ok, you will be asked to prepare complete application materials and apply to the school. Tutor OK, there is no problem with your application