DI Container Museum@PHP

by Sota Sugiura

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%*$POUBJOFS.VTFVN !1)1 !TPUB :"1 BDIJNPO $"TJB)BDIJPKJ !඼઒

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ࣗݾ঺հ w ਿӜᰜଠ 4PUB4VHJVSB w !TPUB w גࣜձࣾΞΠελΠϧ೥໨ w *1)1+BWB4DSJQU

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ຊ೔ͷ࿩

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%FQFOEFODZ*OKFDUJPO $POUBJOFS

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ͦͷલʹʜ ͦ΋ͦ΋%FQFOEFODZ*OKFDUJPOͬͯͳΜͧ

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%FQFOEFODZ *OKFDUJPO

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ίϯϙʔωϯτؒͷґଘΛ ؇࿨͢Δ

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6TFSQIQ db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } }

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΋͜͠ΜͳίʔυΛॻ͘ͱ w ͍ΖΜͳ͓͡͞Μʹࡴ͞ΕΔ w ૄ݁߹͓͡͞Μ w ςετ͓͡͞Μ w ΦϒδΣΫτࢦ޲͓͡͞Μ

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Կ͕μϝͳͷ͔

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ϨϏϡʔλΠϜ w %#Ϋϥεͷ"1*͕มΘͬͨΒ6TFSQIQΛಡ· ͳ͖Ό͍͚ͳ͍ w σʔλϕʔε͕มߋ͞ΕͨΒ6TFSQIQΛมߋ͠ ͳ͖Ό͍͚ͳ͍ w ςετ࣌͸σʔλϕʔε઀ଓΛϞοΫ͍ͨ͠Μͩ ͚ͲͲ͏࣮ݱ͢Δͷʁ

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db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } } 6TFSQIQ %#Ϋϥεͷ"1*มߋͷӨڹΛड͚Δ

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db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } } 6TFSQIQ σʔλϕʔεมߋ࣌ʹ Ҿ਺Λॻ͖׵͑ͳ͚Ε͹͍͚ͳ͍

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db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } } 6TFSQIQ ͜ͷ஋ΛͲ͏΍ͬͯϞοΫ͢Δͷʁ

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ґଘؔ܎ w ͭ·Γɺ6TFSΫϥε͸%#ΫϥεͷมߋͷӨڹ Λड͚΍͍͢ w 6TFSΫϥε͸%#Ϋϥε΁ͷґଘ౓͕ߴ͍

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꒪⌓꒪

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ղܾΛࢼΈΔ

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6TFSQIQ db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } }

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6TFSQIQ db = new DB('mysql'); } public function getUsers() { return $this->db->table('users')->selectAll(); } } ͜ͷॲཧ͕ݪҼͬΆ͍

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.BJOQIQ

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6TFSQIQ db = $db; } public function getUsers() { return $this->db->table('users')->selectAll(); } }

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6TFSQIQ db = $db; } public function getUsers() { return $this->db->table('users')->selectAll(); } } 5ZQF)JOU

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.BJOQIQ

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5FTUQIQ

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ϨϏϡʔλΠϜ w σʔλϕʔε͕มߋ͞Εͯ΋6TFSΫϥε͸ॻ͖ ׵͑ͳͯ͘Α͍ w ςετ࣌ʹϞοΫΛίϯετϥΫλʹ౉͢͜ͱ ͕Ͱ͖ͦ͏ w %#ͷ"1*͕มΘΔͱ6TFSΫϥεΛॻ͖׵͑ͳ ͖Ό͍͚ͳ͍໰୊͸มΘΒͣ

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"1*ͷมߋʹڧ͍ΠέͯΔ࢓૊Έ͕ཉ͍͠ P ɻ 㵺㱿㵺

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*OUFSGBDF

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8JUIPVU*OUFSGBDF 6TFS %# *OKFDUJPO

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8JUI*OUFSGBDF 6TFS %#*OUFSGBDF 5ZQF)JOU %# *NQMFNFOU *OKFDUJPO

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%#*OUFSGBDFQIQ

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6TFSQIQ db = $db; } public function getUsers() { return $this->db->table('users')->selectAll(); } } *OUFSGBDF

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.BJOQIQ

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ϨϏϡʔλΠϜ w σʔλϕʔε͕มߋ͞Εͯ΋6TFSΫϥε͸ॻ͖ ׵͑ͳͯ͘Α͍ w ςετ࣌ʹϞοΫΛίϯετϥΫλʹ౉͢͜ͱ ͕Ͱ͖ͦ͏ w Πϯελϯεͷ"1*͕มߋ͞Εͯ΋*OUFSGBDF͞ ͑कΒΕ͍ͯΕ͹ॻ͖׵͑ͳͯ͘Α͍

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ґଘݮΒͤͨ٩ ˊᗜˋ و

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*U`T%FQFOEFODZ*OKFDUJPO w ͜Ε͕%*ύλʔϯͷجຊܕ w ΫϥεͷதͰͳ͘ɺ֎Ͱґଘ͢ΔΦϒδΣΫτ Λ࡞Γ֎͔Β஫ೖ͢Δ w ͜Ε͸ҰྫͰɺଞʹ΋༷ʑͳΞϓϩʔν͕͋Δ

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,JOEPG%* w ίϯετϥΫλΠϯδΣΫγϣϯ w ηολʔΠϯδΣΫγϣϯ w ϝιουΠϯδΣΫγϣϯ w ϑΟʔϧυΠϯδΣΫγϣϯ

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๻ʮͬͦ͘͞ΞϓϦॻ͜͏ʯ

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$POUSPMMFSQIQ getIndexPage(); } }

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$POUSPMMFSQIQ getIndexPage(); } } ᶃෳࡶ͗͢Δ

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$POUSPMMFSQIQ getIndexPage(); } } ᶃෳࡶ͗͢Δ ᶄ݁ہOFXͯ͠Δ

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δϨϯϚ w %*ύλʔϯʹΑΓۃݶ·Ͱґଘ౓ΛݮΒ͢͜ͱ ͸Մೳ w ͕ͩ݁ہͲ͔͜ͰΠϯελϯε͸࡞Βͳ͖Ό͍ ͚ͳ͍ w ΞϓϦέʔγϣϯ͕ڊେʹͳΕ͹ͳΔ΄ͲΠϯ ελϯεੜ੒͕ෳࡶʹͳ͍ͬͯ͘

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δϨϯϚ w *OUFSGBDFΛ࢖༻ͯ͠ૄ݁߹Խͯ͠Δ৔߹͸ந৅ Ϋϥεʹର͢Δ۩৅ΫϥεͷϚοϐϯά͕ඞཁ w ڊେʹͳΕ͹ͳΔ΄Ͳ؅ཧ͕൥ࡶʹ

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ઃఆΛར༻͔Β෼཭͠Α͏

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ઃఆͱ͸ΦϒδΣΫτΛ࡞Δํ๏ ར༻ͱ͸ΞϓϦέʔγϣϯຊମ

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ղܾ͍ͨ͜͠ͱ w ΞϓϦͰ͸ٻΊΔ΋ͷ͕༩͑ΒΕΕ͹ಈ͘ίʔ υΛॻ͖͍ͨ w ͲͷΦϒδΣΫτʹԿ͕஫ೖ͞ΕΔ͔ͷ؅ཧ͸ ͳΔ΂ͨ͘͘͠ͳ͍

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͓ɹ·ɹͨɹͤ ͔ͬ͜Βຊฤ

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%FQFOEFODZ*OKFDUJPO $POUBJOFS

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%*$POUBJOFS w ΦϒδΣΫτ΍ΦϒδΣΫτͷੜ੒ํ๏Λอ࣋ ͢Δശ w %*ίϯςφ͕Πϯελϯεͷੜ੒ํ๏Λ஌ͬͯ ͍Δ w ΞϓϦέʔγϣϯ͕%*ίϯςφ͔Βඞཁͳ΋ͷ ΛऔΓग़͚ͩ͢

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%*$POUBJOFS͸πʔϧ w %*͸σβΠϯύλʔϯ͕ͩ%*ίϯςφ͸σβΠ ϯύλʔϯͰ͸ͳ͍ w %*ύλʔϯΛ࠾༻࣮ͨ͠૷Λڧྗʹޙԡ͢͠Δ ͨΊͷπʔϧͱࢥͬͯྑ͍ w ͳͷͰ༷ʑͳΞϓϩʔν͕͋Δ

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ཁ͢Δʹ %*$POUBJOFS (FU6TFS4FSWJDF "QQMJDBUJPO

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ཁ͢Δʹ %*$POUBJOFS "QQMJDBUJPO ΰχϣͬͱ ΠϯελϯεΛ࡞Δ

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ཁ͢Δʹ %*$POUBJOFS "QQMJDBUJPO 6TFS4FSWJDF ׬੒͞Εͨ6TFS4FSWJDF Πϯελϯε͕ฦͬͯ͘Δ Πϯελϯεͷੜ੒ํ๏Λ ஌ΒͣʹखʹೖΕΔ

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γϯϓϧʹߟ͑Α͏ w %*ίϯςφͷ௒جຊػೳ͸ొ࿥ͱऔಘ w ޷͖ͳΦϒδΣΫτΛొ࿥͢Δ w ొ࿥ͨ͠ΦϒδΣΫτΛऔಘ͢Δ

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ͬͦ͘͞࢖͍͍ͨʂ ͲΜͳ΋ͷ͕͋ΔΜͰ͔͢ʁ Φεεϝ͸ʁ

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1)1%*$POUBJOFST w QJNQMF w BVSBEJ w 1)1%* w %JDF w UIFQIQMFBHVF w TZNGPOZ w "VSZO w [FOETFSWJDFNBOBHFS w BOEFUD

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1)1%*$POUBJOFST w QJNQMF w BVSBEJ w 1)1%* w %JDF w UIFQIQMFBHVF w TZNGPOZ w "VSZO w [FOETFSWJDFNBOBHFS w BOEFUD ଟ͍

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ϥΠϒϥϦ࣠Ͱͳ͘ ख๏࣠Ͱ͝Ҋ಺

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ϥΠϒϥϦ࣠Ͱͳ͘ ख๏࣠Ͱ͝Ҋ಺ 1JNQMF "VSB 4ZNGPOZ 1)1%* ̃⶿䘞☏匝Օ׋ֆָ׋׌ս֡֒Ւ媈䭚ՂթՄ

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ίϯςφ΁ͷొ࿥

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LFZWBMVFܗࣜͰͷొ࿥ w ೚ҙͷ஋ͰΦϒδΣΫτΛొ࿥ w αʔϏεϩέʔλͱͯ͠΋࢖͑Δ w ࣗ༝౓͕ߴ͍ w %*ίϯςφͷجຊͱݴͬͯ΋աݴͰͳ͍ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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LFZWBMVF QJNQMF

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Ϋϥε໊Ͱͷొ࿥ w Ϋϥε໊ͰΦϒδΣΫτΛొ࿥ w LFZWBMVFΑΓগ੍͠໿͕ڧ͍ w %*ύλʔϯΛ࣮ݱ͠΍͍͢ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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$MBTTOBNF QIQMFBHVF add('SessionInterface', 'Session');

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-B[ZMPBE ஗Ԇొ࿥ w ొ࿥͢Δࡍʹ͸ΦϒδΣΫτΛ࡞Βͳ͍ w औಘ͞ΕΔλΠϛϯάͰΦϒδΣΫτΛੜ੒ w %*ίϯςφͷىಈ࣌ؒͷઅ໿ʹͳΔ "VSB 4ZNGPOZ 1)1%* QIQMFBHVF ;FOE

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γϯάϧτϯ w ΦϒδΣΫτΛγϯάϧτϯͱͯ͠ొ࿥ w औಘ͞ΕΔΦϒδΣΫτ͸ৗʹಉ͡ w ࢖͍ա͗Δͱςετ͕ࠔ೉ʹɻΑ͘ߟ͑Α͏ʂ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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*OKFDU"SHVNFOUT

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Ҿ਺ࢦఆొ࿥ w ొ࿥͢ΔࡍʹҾ਺ʹԿΛೖΕΔ͔ࢦఆ͢Δ w ίϯετϥΫλ΍ηολʔɺ5SBJUͳͲʹࢦఆ w ந৅ʹରͯ͠ͷ۩৅Ϛοϐϯά͕Մೳ "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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$POTUSVDUPS*OKFDUJPO BVSBEJ newInstance(); // Register $di->params['Example']['foo'] = new Foo();

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4FUUFS*OKFDUJPO BVSBEJ newInstance(); // Register $di->setters['Example']['setFoo'] = new Foo;

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ϑΟʔϧυΠϯδΣΫγϣϯ w ϓϩύςΟΛηοτ͢Δ w Ξϊςʔγϣϯ΍ίϝϯτΛ%*ίϯςφ͕ղऍ ͠ɺඞཁͳ෺Λ൑ผ͢Δ w ϞϊʹΑͬͯ͸ίϯςφʹґଘ͢ΔͷͰ஫ҙ 4ZNGPOZ 1)1%*

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"OOPUBUJPO 1)1%*

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1SPQFSUZ 4ZNGPOZ setDefinition('talk', ...); $container->setDefinition('yapc', new Definition( 'Yapc' ))->setProperty('talk', new Reference('talk'));

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'BDUPSZ w $MPVTFSΛొ࿥͢Δ w ෳࡶͳΠϯελϯεੜ੒ΛࢦఆͰ͖Δ w Πϯελϯεੜ੒ΛϑΝΫτϦʔʹ෼཭͢Δͷ ͕༰қʹ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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4BNQMF ;FOE [ stdClass::class => InvokableFactory::class, MyObject::class => function (ContainerInterface $c, $name) { return new MyObject($c->get('obj')); }, ] ]);

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BVUPXJSJOH w %*͕ղऍͰ͖Δ৔߹ɺશͯࣗಈͰొ࿥͞ΕΔ w ٻΊΔΠϯελϯε͕ඞཁͳґଘΛղܾ͢Δ "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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4BNQMF BVSBEJ newInstance($builder::AUTO_RESOLVE); // Get instance $userService = $di->newInstance('UserService');

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ίϯςφ͔Βͷऔಘ

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LFZWBMVFܗࣜͰͷऔಘ w ೚ҙͷ஋ͰΦϒδΣΫτΛऔಘ w ΞϓϦέʔγϣϯ಺Ͱ࢖͏ͱαʔϏεϩέʔλ ʹͳΔ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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(FUCZLFZOBNF QJNQMF

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Ϋϥε໊Ͱͷऔಘ w Ϋϥε໊ͰΦϒδΣΫτΛऔಘ w BVUPXJSJOH͕͋Δ΋ͷ͸ొ࿥͞Εͯͳ͍΋ͷ ΋औಘͰ͖Δ 1JNQMF "VSB 4ZNGPOZ 1)1%* "VSZBO QIQMFBHVF ;FOE %JDF

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(FUCZDMBTTOBNF BVSBEJ newInstance(); // Register $di->params['Example']['foo'] = new Foo(); // Get instance $example = $di->newInstance('Example');

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(FUCZDMBTTOBNF "VSZBO make('UserService');

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جຊ͸ొ࿥ͱऔಘ w ొ࿥ͱऔಘͷ֓೦͚ͩΘ͔Ε͹͍͍ͩͨҰॹ w ΞϓϦέʔγϣϯͷن໛΍࣮૷Ξϓϩʔνɺ޷ ΈͰ%*ίϯςφΛબͿ΂͠ w ύϑΥʔϚϯε΍"1*ͷॆ࣮౓΋ݟΔͱָ͍͠

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143

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143 w 143Ͱ%*$POUBJOFSͷΠϯλʔϑΣʔεΛܾΊ Α͏ͱ͍͏࿩͕͋Δ w ݱࡏͷϑΣʔζ͸%SBGU w 3FWJFXʹ͕͋Δؾ഑͸ແ͍ؾ͕͢Δɻɻɻ

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Կ͕ܾΊΒΕ͍ͯΔͷ͔

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ίϯςφ͔Βͷ औಘΠϯλʔϑΣʔε

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HFU IBT

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HFU ΦϒδΣΫτΛऔಘ IBT ΦϒδΣΫτͷ༗ແΛௐ΂Δ

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DPOUBJOFSJOUFSPQ w ݱ࣌఺ͷ143Λ࣮૷ͨ͠ΠϯλʔϑΣʔε w ΦϒδΣΫτͷऔಘํ๏ͷΈఆٛ͞Ε͍ͯΔ w ޙ͸ྫ֎͕ͭ w ඇৗʹγϯϓϧ IUUQTHJUIVCDPNDPOUBJOFSJOUFSPQDPOUBJOFSJOUFSPQ

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BDDMJNBUFDPOUBJOFS w DPOUBJOFSJOUFSPQʹै͍ͬͯΔίϯςφΛ݁ ߹Ͱ͖Δ w ίϯςφͷࠩ͠ସ͑ͷϋʔυϧ͕௿͘ͳΔ IUUQTHJUIVCDPNKFSFNFBNJBBDDMJNBUFDPOUBJOFS

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143͸͍ܾͭ·Δʁ w ਖ਼௚Θ͔ΒΜ ɾТɾʆ w ͦ΋ͦ΋ඞཁ͋Δͷ͔ w ࠓ͸DPOUBJOFSJOUFSPQΛಡΊ͹ॆ෼ w ෼ͰಡΊ·͢

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·ͱΊ

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%*$POUBJOFSͷັྗ

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ઃఆΛར༻͔Β׬શʹ ෼཭Ͱ͖Δ

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ొ࿥ͱऔಘͷ֓೦Λ ֮͑ͯ

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܅͚ͩͷ࠷ڧͷ ΞϓϦέʔγϣϯΛखʹೖΕΖ ٩ ˊᗜˋ و

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͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠