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PHPのmiddlewareを 使いこなすために
Hiroyuki Yamaoka
January 26, 2019
Technology
3
1.6k
PHPのmiddlewareを 使いこなすために
PHPカンファレンス仙台2019での発表資料です。
https://phpcon-sendai.net/2019/
Hiroyuki Yamaoka
January 26, 2019
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Transcript
1)1ͷNJEEMFXBSFΛ ͍͜ͳͨ͢Ίʹ 1)1ΧϯϑΝϨϯεઋ ߹ಉձࣾςϯϚυɹࢁԬ
ࣗݾհ ࢁԬ!IJSP@Z 1)1ͱ͔/PEFKTͷΤϯδχΞ 1)1ͷ͜Ζ͔Β ߹ಉձࣾςϯϚυදࣾһ
ɹɹ߹ಉձࣾςϯϚυ!! Ϗδωεࢧԉࣄۀ ࣾ֎$50ͱ͔ΞυόΠβʔ *OOPWBUPS+BQBO64&/.FEJBͳͲ αʔϏε։ൃࣄۀ
JSVDBNJNFNPDPOBTV
ࠓճͷ͓ͷΰʔϧ NJEEMFXBSFͱ͍͏ߟ͑ํ͕Θ͔Δ ฉ͍ͨͱ͖ʹΠϝʔδ͕ු͔Ϳ ར༻γʔϯ͕૾Ͱ͖Δ ϑϨʔϜϫʔΫͰ͑Δ͔Θ͔Δ
͓Λ࢝ΊΔલʹ
લճ·Ͱͷ͋Β͢͡ 1)1ΧϯϑΝϨϯεؔ 4MJN'SBNFXPSLͰ࢝ΊΔ1)1ͷ NJEEMFXBSF 1)1ΧϯϑΝϨϯε 1)1'*(ͷ)551ॲཧඪ४ͷઃܭ
ͳͥ143ʹͳͬͨͷ͔
Ͱɺ͋ΒͨΊͯ
XFCΞϓϦͱ ϦΫΤετΛड͚औΓʢೖྗʣ ͍Ζ͍ΖॲཧΛͯ͠ ೝূͱ͔%#ͷॲཧͱ͔ ϨεϙϯεΛฦ͢ʢग़ྗʣ
؆୯ʹඳ͘ͱ͜͏
XFCΞϓϦͷલॲཧ શϦΫΤετڞ௨Ͱ͍ͨ͠ॲཧ ϩάΠϯೝূ %#͔ΒͷσʔλऔಘɹͳͲ ΞϓϦέʔγϣϯຊମͷલʹ ॲཧΛڬΊΔΑ͏ʹ͢ΕΑ͍ͷͰ
ϑΟϧλʔʢલॲཧʣ
XFCΞϓϦͷޙॲཧ શϦΫΤετڞ௨ͷॲཧɺ·ͩ͋Δ ϩάग़ྗ ॲཧޙʹ·ͱΊͯϝʔϧૹ৴ ΞϓϦέʔγϣϯຊମͷޙʹ ॲཧΛڬΊΔΑ͏ʹͰ͖ΔͱΑͦ͞͏
ϑΟϧλʔʢޙॲཧʣ
ͯ͞ɺͪΐͬͱ ൃΛస͢Δ
ೖΕࢠߏ ೖΕࢠࣜʹॲཧΛ ͭͳ͍Ͱ͍͘ΈΛߟ͑Δ ྫؔ"ͱؔ#Λ࣮͢Δ ؔ"ͦͷॲཧͷதͰؔ#Λ ࣮ߦɺͦͷ݁ՌΛฦ͢Α͏ʹ͢Δ
1)1Ͱॻ͍ͯΈΔͱ $a = function (string $str, \Closure $next) : string
{ echo 'A'; // લॲཧΆ͍ $result = $next($str); // ࣍ΛݺͿ echo 'C'; // ޙॲཧΆ͍ return $result; }; $b = function (string $str) : string { echo 'B'; return strtoupper($str); }; $a('hoge', $b); // ABC
ೖΕࢠߏ
͞ΒʹೖΕࢠߏ
λϚωΪΈ͍ͨʁ QIPUPCZEBSXJO#FMMMJDFOTFEVOEFS$$#: IUUQTXXXqJDLSDPNQIPUPTEBSXJOCFMM
ೖΕࢠߏͷಛ ΞϓϦຊମΛแΉΑ͏ʹ࣮ ֎ଆ͔Β৽͍͠;Δ·͍ΛՃͰ͖Δ ࢀߟ"01ʢΞεϖΫτࢦϓϩάϥϛϯάʣ ڞ௨ͷॲཧΛԣஅతʹݺͼग़͠
લॲཧɾޙॲཧΛࢦఆͰ͖Δ
XFCΞϓϦʹద༻
1)1ʹ͓͚Δྺ࢙
4UBDL1)1 IUUQTTUBDLQIQDPN l$PNQPTJOH)UUQ,FSOFM*OUFSGBDF NJEEMFXBSFTTJODFz l8IBUEPXFXBOU 3FVTFBUUIF XFCMBZFSz
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4UBDL1)1
143ͱʁ IUUQTXXXQIQpHPSHQTS l1)14UBOEBSET3FDPNNFOEBUJPOTz ܾఆతͳʮඪ४ʯͰͳ͍ ͋͘·ͰΦεεϝɺקࠂ
ίϛϡχςΟʔͰӨڹྗେ
Α͘ฉ͘143 143#BTJD$PEJOH4UBOEBSE 143$PEJOH4UZMF(VJEF 143-PHHFS*OUFSGBDF 143"VUPMPBEJOH4UBOEBSE
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XFCΞϓϦͷೖग़ྗͷඪ४Խ
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XFCΞϓϦͷඪ४Խ
ઌ΄Ͳͷਤ
143143
.JEEMFXBSF*OUFSGBDF interface MiddlewareInterface { public function process( ServerRequestInterface $request, RequestHandlerInterface
$handler ): ResponseInterface; }
3FRVFTU)BOEMFS interface RequestHandlerInterface { public function handle( ServerRequestInterface $request ):
ResponseInterface; }
࠷ۙͷ143ͷ IUUQTUXJUUFSDPNGBCQPUTUBUVT 3FNPWF4ZNGPOZCZGBCQPUu1VMM 3FRVFTUuQIQpHpHTUBOEBSET
ϑϨʔϜϫʔΫͱ NJEEMXBSFͷؔ
4MJN'SBNFXPSLW IUUQTXXXTMJNGSBNFXPSLDPN )5513PVUFS .JEEMFXBSF 1434VQQPSU
%FQFOEFODZ*OKFDUJPO 143
4MJN class ExampleMiddleware { public function __invoke( ServerRequestInterface $request,
ResponseInterface $response, callable $next ): ResponseInterface { return $next($request, $response); } }
4MJN'SBNFXPSLW IUUQTHJUIVCDPNTMJNQIQ4MJN CMPCY$)"/(&-0(NE 4MJNOPMPOHFSTIJQTXJUIB143 JNQMFNFOUBUJPO 1433FRVFTU)BOEMFSTDBOOPX CFVTFEBTSPVUFDBMMBCMFT
;FOE&YQSFTTJWF IUUQTEPDT[FOEGSBNFXPSLDPN [FOEFYQSFTTJWF 1431433PVUJOH143 ඪ४Λҙࣝ
-BSBWFM IUUQTMBSBWFMDPNEPDT NJEEMFXBSF 143ͷ࣮Ͱͳ͍ ैདྷͷDPOUSPMMFSͷิॿతͳׂ ڞ௨ॲཧΛ࣮͢ΔͨΊͷΈ
-BSBWFM class ExampleMiddleware { public function handle( \Illuminate\Http\Request $request,
\Closure $next ) { return $next($request); } }
4ZNGPOZ NJEEMFXBSFʹ૬͢Δػೳͳ͍ ػೳͱͯ͠ϑΟϧλʔ͕͋Δ IUUQTTZNGPOZDPNEPDDVSSFOU FWFOU@EJTQBUDIFS CFGPSF@BGUFS@pMUFSTIUNM
$BLF1)1 IUUQTCPPLDBLFQIQPSHFO DPOUSPMMFSTNJEEMFXBSFIUNM ͔Β143ʹରԠ $43'τʔΫϯνΣοΫͷ࣮ͳͲ͕ NJEEMFXBSFͰͳ͞Ε͍ͯΔ
$BLF1)1 class ExampleMiddleware { public function handle( ServerRequestInterface $request,
ResponseInterface $response, callable $next ): \Cake\Http\Response { return $next($request, $response); } }
ͯ͞ɺ·ͱΊ
ͪΐͬͱେ͛͞ͳ
ͦͦϑϨʔϜϫʔΫͱ ϦΫΤετΛड͚औΔ SPVUJOHΛݩʹߦ͏ॲཧΛબ͢Δ ॲཧΛݺͼग़͠ɺ࣮ߦ ݁ՌΛϨεϙϯεͱͯ͠ग़ྗ͢Δ
ϑϨʔϜϫʔΫ ࡞Εͦ͏͡Όͳ͍Ͱ͔͢ʁ
ϑϨʔϜϫʔΫϨγϐ 143ͷ࣮ʢ[FOEEJBDUPSPTͳͲʣ SPVUJOH࣮ʢ'BTU3PVUFͳͲʣ NJEEMFXBSFͷ࣮ߦʢ.JEEMFMBOEͳͲʣ ग़ྗʢ[FOEIUUQIBOEMFSSVOOFSͳͲʣ
࣮ྫ IUUQTMPHNJKQUFDIBSUJDMFT ϩάϛʔͷϦχϡʔΞϧ lࠓճͷϦχϡʔΞϧͰ͜ͷ143 Λར༻͢Δ͜ͱͰɺಛఆͷ8FCϑϨʔ ϜϫʔΫΛར༻ͤͣʹΞϓϦΛ࣮͢ Δ͜ͱʹ͠·ͨ͠z
ΦϨΦϨϑϨʔϜϫʔΫ ϑϨʔϜϫʔΫ؆୯ʹ࡞ΕΔ 143ʹ४ڌ͓͚ͯ͠ɺޙ͔Β;FOE &YQSFTTJWFͳͲʹΓ͑Δ͜ͱՄೳ ͪΖΜɺٯ બࢶͷҰͭͱͯ͠ɺ͋Γ͔
NJEEMFXBSF ͍͔͕Ͱ͔ͨ͠ʁ
·ͱΊ ॲཧΛNJEEMFXBSFͰׂ هड़͕؆ܿʹɺςετ༰қʹ 143Ͱඪ४Խ͞ΕΔ͜ͱͰࠩ͠ସ͑Մೳʹ %*ίϯςφͱͷΈ߹Θͤศར
ίϯετϥΫλΠϯδΣΫγϣϯ
͋Γ͕ͱ͏͍͟͝·ͨ͠