Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
防衛的 PHP: 多様性を生き抜くための PHP 入門 / Defensive PHP
Search
Naoki Ikeguchi
March 24, 2023
Programming
1.7k
2
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
防衛的 PHP: 多様性を生き抜くための PHP 入門 / Defensive PHP
Naoki Ikeguchi
March 24, 2023
Transcript
43 slides
Ӵత 1)1 ଟ༷ੑΛੜ͖ൈͨ͘Ίͷ 1)1ೖ !TO@KQ QIQFSLBJHJ B
XIPBNJ • αʔόαΠυΤϯδχΞ !ΏΊΈ • ࡾͷ൧ΑΓ੩తܕ͚͕͖ • 1)1 3VTU (P
$ FUD • -BSBWFMΑΓ 4ZNGPOZ • +FU#SBJOT৴ऀ • 3VTU Ͱ 1)1ͷ 4"1*Λ࣮͢Δ ͷ͕झຯ 2 @s6n_jp
੩తղੳͬͯԿ 3
'PSNBUUFS Ձͳίʔυͷ··εϖʔγϯάΠϯσϯτɼෆཁͳτʔΫϯ ͳͲΛ͑Δ 4 $foo = (function ($a, $b, $c)
{})(); $bar = array(“a”, “b”,); $foo= ( function($a,$b, $c ){ }, )(); $bar = [ ‘a’, ‘b’, ];
-JOUFS -JOU • ͳॻ͖ํɼݹ͍ॻ͖ํɼҰൠʹΑ͘ͳ͍ͱ͞ΕΔॻ͖ํ ͳͲΛݕ͢Δɾผͷॻ͖ํʹม͑Δ • ഁյతͳมߋΛߦ͏ɾఏҊ͢Δ߹͋Δ • ͨͱ͑ 1)1Ͱ
declare(strict_types=1); ΛՃ͢Δ ϧʔϧ͕͜Εʹ͋ͨΔ • ࣗಈతʹमਖ਼Ͱ͖ͳ͍ͷ͋Δ 5
5ZQF$IFDLFS • ܕΛݕࠪ͢Δ ͦͷ·· 6
ଞͷݴޠʹ͓͚Δ੩తղੳ 7
1)1ͷ੩తղੳπʔϧ • 1)1@$PEF4OJGGFS • 1)1$4'JYFS • 1)1.FTT%FUFDUPS • 1)14UBO •
1TBMN • 3FDUPS FUDʜ 8
9 ଟ͗͢Δ ͷͰͱΓ͋͑ͣೖΕ͓͖ͯ͘ ͭΛհ͠·͢
8IZ੩తղੳ 10
ܕͷऑ͔ͬͨݴޠ͕ܕΛٻΊ͍ͯΔ 11
ਓྨܕΛٻΊΔ • ਓखଓ͖ܕݴޠʹ;ΕΔͱߴจ຺ͳίʔυΛੜ࢈͢Δ • ܕߟ͑Δ͜ͱΛ࠷খʹ͢ΔखஈͰ͋Δ 12
ϏϧυλΠϜͰΕΔʹӽͨ͜͠ͱͳ͍ ͋͞օ͞Μ͝Ұॹʹɺ • ίϯύΠϧΤϥʔී௨ • ίϯύΠϧΤϥʔ͕ग़ͨΒ͋Γ͕ͱ͏ • ίϯύΠϧΤϥʔ͕ग़ͨΒେتͼ 13 l
ߐఴ྄ɽzߐఴ྄ͷ$ ೖzɽɽIUUQTF[PFSZPVHJUIVCJPDQQJOUSP
Ӵతͳίʔυϕʔε 14
ͭͷӴ • ࣗͷϛε͔ΒͷӴ • ࣗͰॻ͍ͨίʔυͷจ຺Λશʹ͍֮͑ͯΒΕΔΘ͚Ͱͳ͍ • ແବͳࢥߟ͔ΒͷӴ • ίʔυͷॻ͖ํຊ࣭Ͱͳ͍ •
ॻ͖ํΛࣗಈͰ౷Ұ͢Δ͜ͱͰίʔυ্ͷຊ࣭ʹूதͰ͖Δ • ଞਓͷॻ͘ίʔυ͔ΒͷӴ • ίʔυϕʔεதͷίʔυͷ࣭ҰఆʹอͨΕΔ͖Ͱ͋Δ • ҉ͷ ίʔσΟϯάنकΒΕͳ͍ 15
ଟ༷ੑ 16
ॻ͘ਓͷ͚ͩҧ͏ίʔυ͕ੜ·ΕΔ • Πϯσϯτεϖʔε λϒ • ԋࢉࢠͷपΓʹεϖʔεΛೖΕΔ ೖΕͳ͍ • BSSBZ@NBQBSSBZ@GJMUFSΛ͏ GPSFBDIΛ͏
• ͜ͷॻ͖ํݹ͍ ৽͍͠ ˠίʔυͷຊ࣭ͦ͜Ͱͳ͍ ˠ੩తղੳʹΑͬͯຊ࣭ʹूதͰ͖ΔΑ͏ʹ͢Δ 17
143ͱ 143 18
143ͱ • 1)1'*( 'SBNFXPSL*OUFSPQFSBCJMJUZ(SPVQ ʹΑͬͯ ࡦఆ͞ΕͨϑϨʔϜϫʔΫؒͷ૬ޓӡ༻ੑΛ֬อ͢ΔͨΊͷ ඪ४ "CTUSBDUJPO • ͨͱ͑ʜʜ
• 143143ΦʔτϩʔσΟϯά • 143143143ίʔσΟϯάελΠϧ • 143)551ϝοηʔδΠϯλʔϑΣʔε • 143$MPDLˡ/&8 19
143 • 143Λݩʹͨ͠ίʔσΟϯάελΠϧඪ४ • ͨͱ͑ʜʜ • 1)1ϑΝΠϧ -'ͷΈΛ͏ .645 •
FYUFOET JNQMFNFOUTΫϥε໊ͱಉ͡ߦʹॻ͘ .645 • 5SBJUͷ VTFจ DMBTTͷ։͔࢝ͬ͜ͷ͙͢ޙ .645 • ͯ͢ͷϝιουʹ 7JTJCJMJUZΛॻ͘ .645 • BCTUSBDU GJOBM TUBUJD 7JTJCJMJUZͷલʹॻ͘ .645 • FMTFJGͰͳ͘ FMTFJGΛ͏ 4)06-% FUDʜ 20
1)1ͷ੩తղੳೖ 21
QIQM • ҙ֎ͱΒΕ͍ͯͳ͍ ࢲΒͳ͔ͬͨ ੩తղੳπʔϧ • ࣮ߦ࣌ͷ 4ZOUBY&SSPSΛ͛Δ 22
23
1)1$4'JYFS 24 • ϧʔϧηοτ • !4ZNGPOZ !4ZNGPOZSJTLZ ͜Ε !143Λܧঝ͢Δ
• !1IQ$T'JYFS !1IQ$T'JYFSSJTLZ • !1)1.JHSBUJPO !1)1.JHSBUJPOSJTLZ • !1)16OJU.JHSBUJPOSJTLZ
25
&$4 ίϯςφ͕ಈ͔ͳ͍΄͏ 26 • 0VUPG#PYͰ͑Δ • 1)1$4'JYFSͷࡉʑͱͨ͠ϧʔϧ͑ͳ͍ • &$41)1$4'JYFS 1)1$4
4ZNQMJGZ
27
1)14UBOฤ • ϨϕϧΛ d͔Β͑ΒͿ ͕͓͢͢Ί • 4ZNGPOZͰ͏߹ &YUFOTJPOΛೖΕΔ • ΄΅
0VUPG#PYͰ͑Δ • ࠷ॳෆཁͳϧʔϧΛҰ୴ແޮԽ͍͍ͯ͠ͱࢥ͏ 28
29
3FDUPSฤ • $0%&@26"-*5: %&"%@$0%& 1)1@d1)1@ 5:1&@%&$-"3"5*0/͋ͨΓͷ 4FU-JTUΛ͏ • JNQPSU/BNFTΛઃఆ͠ͳ͍ͱ '2$/͕ॻ͔ΕΔͷͰҙ
30
31
32
੩తղੳͱ 1IQ4UPSN 33
͋ͳͨͷ 1IQ4UPSN ࠷దͳઃఆ 34
͋ͳͨͷ 1IQ4UPSN ࠷దͳઃఆ 35
36
37
͏Ε͍͠χϡʔε 38
1IQ4UPSN $* Ͱಈ͖·͢ 39
1IQ4UPSN $* Ͱಈ͖·͢ brew install jetbrains/utils/qodana qodana scan –-show-report •
+BWB ,PUMJO 1)1 1ZUIPO +BWB4DSJQU 5ZQF4DSJQU (P $ ' 7#/&5 BOENPSF • 4"3*'ܗࣜͰͷग़ྗՄೳ • ࠓͳΒແྉͰ͑·͢ 40
0OF.PSF5IJOH 41
ࠓհͨ͠πʔϧΛ·ͱΊͯಋೖͰ͖·͢ composer require --dev \ quartetcom/static-analysis-kit:~8.1 • 1)1$4'JYFS 1)14UBO 3FDUPSΛҰʹಋೖͰ͖·͢
• 0VUPG#PYͰ͑ΔͷͰ໘ͳઃఆෆཁ • ݫ͠Ίͷઃఆʹͯ͋͠ΔͷͰݫ͠Ί͕͖ͳํʹ͓͢͢Ί 42
5IBOLZPV ൃදࢿྉͪ͜Β͔ΒIUUQTTQFBLFSEFDLDPNTJLFUZBO 43
Other Decks in Programming
See All in Programming
AI Augmentation Techniques with Liberty
ivargrimstad
1
470
DroidKnights 2026 Android A2UI Jetpack Compose 기반의 안전한 AI UI 렌더링 - 박제창
itsmedreamwalker
1
230
Spec-Driven Development - Why Vaadin Is the Perfect Fit
simas
PRO
0
250
Distance field of Julia set
kinakomoti321
0
320
Goコンパイラを作ってGoをもっと理解する / Build a Go compiler to better understand Go
ikura_hamu
0
130
あなたの await、OS まで届いてる? strace で覗く JavaScript の非同期
hasutosasaki
1
2.4k
AIが生成したコードは読むべきか?抽象化設計とコードの品質保証 / abstraction-design-and-quality
minodriven
16
9.1k
作って学ぶSpring BootのAuto Configuration / JJUG Night Seminar 2026-10-19
rshindo
0
230
조합이폭발하는디자인시스템이걸눈으로도테스트하라고요
giljongyu
0
750
自作Discord音声botをLambda MicroVMsに移行した話 / Migrating My Discord Voice Bot to Lambda MicroVMs
akihisaikeda
1
320
FactoryBotをやめればRSpecは速くなるのか?
yuta_onishi_97
0
1.7k
社内AIエージェント「Askワンバン」における コストチューニングの取り組み
t0yohei
0
170
Featured
See All Featured
The AI Revolution Will Not Be Monopolized: How open-source beats economies of scale, even for LLMs
inesmontani
PRO
3
3.8k
Java REST API Framework Comparison - PWX 2021
mraible
34
9.8k
Rails Girls Zürich Keynote
gr2m
96
14k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
250
1.3M
B2B Lead Gen: Tactics, Traps & Triumph
marketingsoph
1
300
Public Speaking Without Barfing On Your Shoes - THAT 2023
reverentgeek
1
660
Crafting Experiences
bethany
1
440
How to build an LLM SEO readiness audit: a practical framework
nmsamuel
2
980
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
31
10k
How Fast Is Fast Enough? [PerfNow 2025]
tammyeverts
3
980
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
254
23k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
360
31k