本当の FizzBuzz をお見せします

Ί΋Γʔ ຊ౰ͷ FizzBuzz Λ͓ݟͤ͠·͢ ࠙਌ձ LT @PHP ΧϯϑΝϨϯε 2023

Ί΋Γʔ m3m0r7 ͖ͬ͞ RubyVM Λ PHP Ͱ࣮૷͢Δ࿩Λ͠ ·ͨ͠ memory1994
m3m0r7

FizzBuzz ஌ͬͯΔਓʙʁ

૝૾ͨ͠ਓ΋  ͍ΔΜ͡Όͳ͍Ͱ͠ΐ͏͔

FizzBuzz ͰϧʔϓจΛ  ࢖͏ͷ͸؁͑

ຊ౰ͷ FizzBuzz Λݟͤͯ΍Γ·͢Α

͜ΕɼͪΌΜͱ 1 ʙ 100 ·Ͱͷ FizzBuzz ͕ग़ྗ͞Ε·͢

Ͳ͏ಈ͍͍ͯΔͱࢥ͍·͔͢ʁ

PHP ͸ $$var ͱ࣮ߦ͢Δͱ $var ʹ  ೖ͍ͬͯΔ஋Λม਺໊ͱͯ͠ࢀর͠·͢

ͨͱ͑͹ $var = 'cat' ͱ͢Δͱ $$var ͸ $cat Λ࣮ߦ͠Α͏ͱ͠·͢ɻ

ͭ·Γɼ$$$...$ ͸ͦΕΛ  ͻͨ͢Β܁Γฦ͍ͯ͠Δ͜ͱʹͳΓ·͢ɻ

$var = '1' Λ $$var ͱ͢Δͱ $1 Λ  ࢀর͠Α͏ͱ͠·͕͢

͝ଘ஌ͷ௨Γ PHP Ͱ͸  ม਺໊Λ਺ࣈ͔Β࢝ΊΒΕ·ͤΜ

͔͠͠ $GLOBALS['1'] ͷΑ͏ʹ  ࢀর͢Δ͜ͱ͸Ͱ͖·͢

PHP ͸ϩʔΧϧม਺ͱάϩʔόϧม਺ Ͱ͋Δ $GLOBALS Λࢀর͠Α͏ͱ͠ ·͢

͜ͷΑ͏ʹ͢Δ͜ͱͰ $var = '1' Λ $$var ͱ࣮ߦ͢Δͱ $GLOBALS['1'] ͕ 
ࢀর͞Ε·͢

͔͠͠ $GLOBALS['1'] ͸ηοτ͞Ε ͍ͯͳ͍ͷͰɼ͜ͷ··Ͱ͸ Unde fi ned variable ʹͳΓ·͢

࣮͸ $var = '1' Λ $$var ͱ࣮ߦ͢Δͱ͖ Unde fi
ned variable ͕ग़ྗ͞ΕΔલʹ  จࣈྻม׵͕૸Γ·͢

ͭ·Γ class Ͱఆٛ͞Εͨ  __toString ͕ൃՐ͢ΔͷͰ͢

͜ͷੑ࣭Λར༻ͯ͠ɼ__toString ͷ  λΠϛϯάͰ $GLOBALS['1'] ʢ1 ͸ ೚ҙͷ਺ࣈʣΛఆ͍ٛͯ͠·͢

ͦͯ͠ __toString ͷฦΓ஋͸  ม਺໊ͱͯ͠ѻΘΕ·͢

ͭ·Γ __toString Λ܁Γฦͨ͢ͼʹ 1, 2, 3 ... ͱ૿͍͖͑ͯ·͢ɻ

ͦͷ஋Λ༻͍ͯ Fizz or Buzz or ਺ࣈ ͱग़͠෼͚Λߦ͍ग़ྗͤ͞Ε͹͍͍ͷ Ͱ͢

͔͠͠ɼͦͷ··Ͱ͸ग़ྗͰ͖·ͤΜ

ͦͷͨΊ print Λ༻͍ͯ  ग़ྗΛߦ͍ͬͯ·͢

ϫϯϥΠφʔϋοΫͰ͸ฦΓ஋͕ͳ͍ echo ΑΓฦΓ஋͕͋Δ print ͕ॏๅ͠ ·͢ʢͦͷ··ଞͷࣜʹࠞͥΒΕΔʣ

https://gist.githubusercontent.com/m3m0r7/ f8059505046c6ab689aa728c2ca6f76c/raw/ be78189cb305358cd57c5ab31c251dd2dcc656d1/ fi zzbuzz.php

͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠

本当の FizzBuzz をお見せします

本当の FizzBuzz をお見せします

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Ί΋Γʔ ຊ౰ͷ FizzBuzz Λ͓ݟͤ͠·͢ ࠙਌ձ LT @PHP ΧϯϑΝϨϯε 2023

Ί΋Γʔ m3m0r7 ͖ͬ͞ RubyVM Λ PHP Ͱ࣮૷͢Δ࿩Λ͠ ·ͨ͠ memory1994

FizzBuzz ஌ͬͯΔਓʙʁ

૝૾ͨ͠ਓ΋  ͍ΔΜ͡Όͳ͍Ͱ͠ΐ͏͔

FizzBuzz ͰϧʔϓจΛ  ࢖͏ͷ͸؁͑

ຊ౰ͷ FizzBuzz Λݟͤͯ΍Γ·͢Α

͜ΕɼͪΌΜͱ 1 ʙ 100 ·Ͱͷ FizzBuzz ͕ग़ྗ͞Ε·͢

Ͳ͏ಈ͍͍ͯΔͱࢥ͍·͔͢ʁ

PHP ͸ $$var ͱ࣮ߦ͢Δͱ $var ʹ  ೖ͍ͬͯΔ஋Λม਺໊ͱͯ͠ࢀর͠·͢

ͨͱ͑͹ $var = 'cat' ͱ͢Δͱ $$var ͸ $cat Λ࣮ߦ͠Α͏ͱ͠·͢ɻ

ͭ·Γɼ$$$...$ ͸ͦΕΛ  ͻͨ͢Β܁Γฦ͍ͯ͠Δ͜ͱʹͳΓ·͢ɻ

$var = '1' Λ $$var ͱ͢Δͱ $1 Λ  ࢀর͠Α͏ͱ͠·͕͢

͝ଘ஌ͷ௨Γ PHP Ͱ͸  ม਺໊Λ਺ࣈ͔Β࢝ΊΒΕ·ͤΜ

͔͠͠ $GLOBALS['1'] ͷΑ͏ʹ  ࢀর͢Δ͜ͱ͸Ͱ͖·͢

PHP ͸ϩʔΧϧม਺ͱάϩʔόϧม਺ Ͱ͋Δ $GLOBALS Λࢀর͠Α͏ͱ͠ ·͢

͜ͷΑ͏ʹ͢Δ͜ͱͰ $var = '1' Λ $$var ͱ࣮ߦ͢Δͱ $GLOBALS['1'] ͕

͔͠͠ $GLOBALS['1'] ͸ηοτ͞Ε ͍ͯͳ͍ͷͰɼ͜ͷ··Ͱ͸ Unde fi ned variable ʹͳΓ·͢

࣮͸ $var = '1' Λ $$var ͱ࣮ߦ͢Δͱ͖ Unde fi

ͭ·Γ class Ͱఆٛ͞Εͨ  __toString ͕ൃՐ͢ΔͷͰ͢

͜ͷੑ࣭Λར༻ͯ͠ɼ__toString ͷ  λΠϛϯάͰ $GLOBALS['1'] ʢ1 ͸ ೚ҙͷ਺ࣈʣΛఆ͍ٛͯ͠·͢

ͦͯ͠ __toString ͷฦΓ஋͸  ม਺໊ͱͯ͠ѻΘΕ·͢

ͭ·Γ __toString Λ܁Γฦͨ͢ͼʹ 1, 2, 3 ... ͱ૿͍͖͑ͯ·͢ɻ

ͦͷ஋Λ༻͍ͯ Fizz or Buzz or ਺ࣈ ͱग़͠෼͚Λߦ͍ग़ྗͤ͞Ε͹͍͍ͷ Ͱ͢

͔͠͠ɼͦͷ··Ͱ͸ग़ྗͰ͖·ͤΜ

ͦͷͨΊ print Λ༻͍ͯ  ग़ྗΛߦ͍ͬͯ·͢

ϫϯϥΠφʔϋοΫͰ͸ฦΓ஋͕ͳ͍ echo ΑΓฦΓ஋͕͋Δ print ͕ॏๅ͠ ·͢ʢͦͷ··ଞͷࣜʹࠞͥΒΕΔʣ

https://gist.githubusercontent.com/m3m0r7/ f8059505046c6ab689aa728c2ca6f76c/raw/ be78189cb305358cd57c5ab31c251dd2dcc656d1/ fi zzbuzz.php

͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠