Greek Prime Minister Alexis Tsipras has said he does not approve of all the austerity measures passed by the government. (AAP)  A final count has revealed the Greek parliament agreed to pass tough austerity reforms in a landslide, in news sure to inflame tensions among protesters.  The ruling radical Syriza party passed the bill thanks to support from pro-European opposition parties as several government lawmakers, including former finance minister Yanis Varoufakis, voted against the measures.  Protesters grew violent outside parliament as the debate raged, with petrol bombs thrown at riot police and several arrests made.  A final count showed 229 MPs voted in favour of the reform bill, with 64 voting against and six abstaining.  Prime Minister Alexis Tsipras insisted he did not agree with the bulk of the draconian deal, that demands tax hikes, a pensions overhaul and privatisation pledges.  But he said the country had no other choice if it wanted to stay in the euro.  "We will not back down from our pledge to fight to the end for the right of the working people," he told the chamber ahead of the vote.  "There is no other option but for all of us to share the weight of this responsibility."  Tsipras and eurozone counterparts agreed to the tough reforms on Monday in order to unlock a new rescue package for Greece worth up to 86 billion euros ($A127.63 billion).  The deal angered many in his own party and other left-wing supporters, with the majority of Greeks voting against similar austerity terms in a referendum on July 5.  Thursday's vote followed violent demonstrations on the streets of Athens, with firebombs thrown by some anti-austerity protesters outside of the parliament.  "We have been betrayed!" shouted a man in a balaclava, as police used pepper spray and gas to stop a crowd breaching a security line blocking off the road to the prime minister's office.  Officers could be seen dragging protesters away in handcuffs, with some 40 people detained.  Four policemen were injured by flying debris and a television van parked nearby was set on fire, along with dumpsters and a Greek flag.  "Our government is a government of traitors. We voted 'No' then Tsipras signs up to even worse conditions. It's madness," said Arsenios Pappas, 35, before the violence broke out.  Meanwhile, the Abbott government has welcomed the Greek parliament's decision to pass new austerity measures and hopes it will lead to greater stability in the country and across Europe.  "Greece can now provide a platform for greater economic growth and get itself out of the difficulties it has had," parliamentary secretary Alan Tudge told Sky News.  Do you have any news photos or videos?
The Greek parliament has passed a bill of tough reforms demanded by the country's European creditors in return for a new bailout.