He did his phd vs He has phd

Some examples from the web:

• He's working on his PhD in Thermo.
• He is finishing his PhD in physics with honors.
• He worked three jobs to put himself through college, eventually earning his phd in paleontology.
• And he wanted to go back to school for his PhD.
• The subject of his PhD was the epidemiology of influenza.
• A research trip would give his PhD... ...a tremendous extra dimension.
• Fellow student Petr Koniok was there to look for information on his PhD dissertation about the 1979 Parliamentary elections.
• A year later, Marsh went back to school, got his PHD in clinical psychology, opened up his own practice, specializing in bereavement counseling.
• Danny was hired straight out of his PHD program, got four commendations, three raises, and re-upped after his first contract expired.
• He has a PhD in applied physics and he practices yoga.
• Schmidt told me he had a PhD in Nickology.
• Says here he holds a PHD in trans-personal psychology.
• He's a soil engineer with a PhD from M.I.T.
• He's got a PhD and two kids.
• He finished his first PhD at 19.
• He has a PhD in mathematics.
• He has a phd in mythological anthropology.
• He mentored me all through my PhD.
• I will give one further example: a student preparing his PhD thesis in Lisbon on the history of the Americas is unable to consult the files and documents housed in the General Archive of the Indies in Seville, which is one hour away by plane.
• He's a PHD in Biomedicine, he's a Neuroscience fellow, a genius Grant recipient.

Some examples from the web:

• He has a PhD in applied physics and he practices yoga.
• He has a PhD in mathematics.
• He has a phd in mythological anthropology.
• Schmidt told me he had a PhD in Nickology.
• Says here he holds a PHD in trans-personal psychology.
• He's working on his PhD in Thermo.
• He's a soil engineer with a PhD from M.I.T.
• He's got a PhD and two kids.
• He finished his first PhD at 19.
• He is finishing his PhD in physics with honors.
• He mentored me all through my PhD.
• He's a PHD in Biomedicine, he's a Neuroscience fellow, a genius Grant recipient.
• Just finished a fancy PhD, he's looking to get back in the game.
• He bought himself a PhD to get in on this case.
• He's got a PhD, at least.
• He worked three jobs to put himself through college, eventually earning his phd in paleontology.
• On his experiences he said that Kiev is quite an expensive city, but I could survive with my PhD scholarship.
• He had to destroy his entire PhD research.
• And he wanted to go back to school for his PhD.
• He's the whole reason I went back to school to get my PhD.