US President Barack Obama is set to join the leaders of China, Japan, Australia, Canada and 15 others at an annual Asia-Pacific Economic Conference summit in Manila on November 18-19.
"The Philippines and its people stand in solidarity with the people of Paris and all of France, in this time of deepest sorrow and gravest outrage against the perpetrators of these crimes," President Benigno Aquino said in a statement.
Presidential spokeswoman Abigail Valte said on government radio that Aquino had put the entire 120,000-strong national police on "full alert", which she said was standard Philippine security procedure after major terror attacks.
"We are committed to ensuring the safety of our visitors and our people. This is a message that has been sent (to the visiting APEC leaders) not just in light of the incidents in Paris," she added.
The Philippines has swept about 20,000 homeless from the streets, cancelled more than a thousand flights, deployed 18,000 police and declared public holidays in Manila to ensure a safe and efficient summit, the organisers have said.
Major streets in the usually chaotic capital are being closed to traffic to speed up the shuttling of delegates, with police asking building owners to close their windows to prevent their use by snipers.
Early today Philippine marines deployed anti-aircraft guns and riot police around the main summit venue as police conducted a full rehearsal of the visiting leaders' motorcades to the summit venues and their hotels.
The Philippines has a long history of Islamic militancy in a southern region about 1,000 kilometres from Manila, although extremists have also carried out deadly attacks in the capital.
APEC has 21 member-economies, but Russian President Vladimir Putin has told the hosts he is skipping the meeting.
