PHPerKaigi 2019 - Speaker Deck

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PHP Ͱ JVM ʹೖ໳͢Δ - ༧උ஌ࣝฤ - PHPerKaigi 2019 2019/03/29 Ί΋Γʔ(@m3m0r7) લ ࠲

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ͩΕʁ Ί΋Γʔ(@m3m0r7) Ͱ͢ɻ ը૾͸ ϋϜελʔքͷఱ࢖ Lily ͪΌΜͰ͢ɻ ϫλγϋϐʔΤΠνϐʔνϣοτσΩϧ גࣜձࣾ GameWith ͱ͍͏ձࣾͰಇ͍ͯ·͢ɻ

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༧උ஌ࣝฤͰ࿩͢͜ͱ લ ࠲

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༧උ஌ࣝฤͰ࿩͢͜ͱ • 16ਐ਺ͷܭࢉํ๏ʹ͍ͭͯ • signed / unsgined ͳܕʹ͍ͭͯ • double ΍ float ͳͲͷුಈখ਺఺ͷܭࢉํ๏ʹ͍ͭͯ • ΤϯσΟΞϯʹ͍ͭͯ

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16 ਐ਺ͷܭࢉํ๏ લ ࠲

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ܭࢉํ๏͝ଘ஌ͷํ✋ લ ࠲

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ͦ͏Ͱ͢Ͷɺ dechex / hexdec / base_convert ؔ਺Ͱ͢ લ ࠲

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৑ஊͰ͢ લ ࠲

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16ਐ਺ͷܭࢉํ๏ • 10ਐ਺͔Β16ਐ਺ͷܭࢉํ๏͸Լهͷࣜʹ౰ͯ͸ΊΒΕ·͢ 0xFF = (16 - 1) * 16^1 + (16 - 1) * 16^0 = 255(10) 1ܻ໨͔Βܻ਺͕૿͑Δͨͼʹ1৐,2৐…N৐ͱ૿͍͖͑ͯ·͢ɻͭ·Γɺ0xFFFFͷ ৔߹͸ԼهͷΑ͏ʹͳΓ·͢ɻ 0xFFFF = (16 - 1) * 16^3 +(16 - 1) * 16^2 + (16 - 1) * 16^1 + (16 - 1) * 16^0 = 65535(10) 16͔Β1ΛҾ͍͍ͯΔͷ͸ɺ։࢝͢Δ਺ࣈ͕0͔Β࢝·ΔͨΊͰ͢ɻA͸10, B͸ 11, … F͸15ͱ֮͑ͯ͠·͍·͠ΐ͏ɻ

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16ਐ਺ͷܭࢉํ๏ • PHPͰܭࢉ͢Δʹ͸ʁ ͜Μͳܭࢉਖ਼௚΍Γͨ͘ͳ͍ɻϓϩάϥϚςΟοΫʹղܾͰ͖ΔͳΒղܾ͢Δʹӽ ͨ͜͠ͱ͸ͳ͍Ͱ͢ɻ • 10ਐ਺͔Β16ਐ਺ʹ͢Δ = dechex(255) ?> • 16ਐ਺͔Β10ਐ਺ʹ͢Δ = hexdec(‘0xFF’) ?> = base_convert(255, 10, 16) ?> = base_convert(‘0xFF’, 16, 10) ?>

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ͱͬͯ΋؆୯Ͱ͢Ͷ લ ࠲

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signed / unsigned ͳܕʹ͍ͭͯ લ ࠲

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ͱ͜ΖͰɺPHPer ͷΈͳ͞Μ͕ ͝ଘ஌ͷܕ͸ԿͰ͠ΐ͏͔ લ ࠲

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JVM Ͱ͸ܕ͕૿͑·͢ લ ࠲

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PHP͔Βݟͯ૿͑ͨܕ • boolean • int (4 byte) • string • float • ࣮࣭ float ͷ double • byte (1 byte) • short (2 byte) • long (8 byte) • Ψν float (4 byte, ୯ਫ਼౓ුಈখ਺఺਺) • Ψν double (8 byte, ഒਫ਼౓ුಈখ਺఺਺)

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ଟݴޠΛѻͬͨ͜ͱͳ͍ํ͸ ೃછΈ͕ͳ͍͔΋͠Ε·ͤΜ લ ࠲

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JVM ্ͷ֤ܕʹ͍ͭͯ લ ࠲

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֤ܕʹ͍ͭͯ - byte • signed byte (ූ߸෇͖ byte) • -128(10) ʙ 127(10) ͕ ූ߸෇͖ byte ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x00 ʙ 0xFF ·ͰͰ͢ɻ • ਖ਼ͷ਺͸ 0x00ʙ0x7F, ෛͷ਺͸ 0x80 ʙ 0xFF ͱͳΓ·͢ɻ • unsigned byte (ූ߸ͳ͠ byte) • 0(10) ʙ 255(10) ͕ූ߸ͳ͠ byte ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x00 ʙ 0xFF ·ͰͰ͢ • ਖ਼ͷ਺ͷΈͰ͢ɻ

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֤ܕʹ͍ͭͯ - short • signed short (ූ߸෇͖ short) • -32768(10) ʙ 32767(10) ͕ ූ߸෇͖ short ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x0000 ʙ 0xFFFF ·ͰͰ͢ɻ • ਖ਼ͷ਺͸ 0x0000ʙ0x7FFF, ෛͷ਺͸ 0x8000 ʙ 0xFFFF ͱͳΓ·͢ɻ • unsigned short (ූ߸ͳ͠ short) • 0(10) ʙ 65535(10) ͕ූ߸ͳ͠ short ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x0000 ʙ 0xFFFF ·ͰͰ͢ • ਖ਼ͷ਺ͷΈͰ͢ɻ

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֤ܕʹ͍ͭͯ - int • signed int (ූ߸෇͖ int) • -2147483648(10) ʙ 2147483647(10) ͕ ූ߸෇͖ int ͷൣғͱͳΓ· ͢ɻ • 16ਐ਺Ͱ͸ 0x000000 ʙ 0xFFFFFF ·ͰͰ͢ɻ • ਖ਼ͷ਺͸ 0x000000ʙ0x7FFFFF, ෛͷ਺͸ 0x800000 ʙ 0xFFFFFF ͱͳ Γ·͢ɻ • unsigned int (ූ߸ͳ͠ int) • 0(10) ʙ 4294967295(10) ͕ූ߸ͳ͠ int ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x000000 ʙ 0xFFFFFF ·ͰͰ͢ • ਖ਼ͷ਺ͷΈͰ͢ɻ

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֤ܕʹ͍ͭͯ - long • signed long (ූ߸෇͖ long) • -9223372036854775808(10) ʙ 9223372036854775807(10) ͕ ූ߸෇͖ long ͷൣғͱͳΓ·͢ɻ • 16ਐ਺Ͱ͸ 0x00000000 ʙ 0xFFFFFFFF ·ͰͰ͢ɻ • ਖ਼ͷ਺͸ 0x00000000ʙ0x7FFFFFFF, ෛͷ਺͸ 0x80000000 ʙ 0xFFFFFFFF ͱͳΓ·͢ɻ • unsigned long (ූ߸ͳ͠ long) • 0(10) ʙ 18446744073709551615(10) ͕ූ߸ͳ͠ long ͷൣғͱͳΓ· ͢ɻ • 16ਐ਺Ͱ͸ 0x00000000 ʙ 0xFFFFFFFF ·ͰͰ͢ • ਖ਼ͷ਺ͷΈͰ͢ɻ

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͓ؾ͖ͮͷํ΋͍Δ͔΋஌Ε·ͤΜ લ ࠲

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ͦ͏ɺPHP Ͱ͸ܭࢉͰ͖ͳ͍਺ࣈ͕ ؚ·Ε͍ͯΔͷͰ͢ લ ࠲

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Ͱ΋େৎ෉ લ ࠲

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ͦ͏ gmp ؔ਺ͳΒͶ લ ࠲

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PHP ͰܭࢉͰ͖ͳ͍஋Λܭࢉ͢Δ • PHP Ͱ͸ unsigned long ͷ஋ΛܭࢉͰ͖ͳ͍͕ɺ gmpؔ਺ Ͱܭࢉͤ͞Δ͜ͱ͸Մೳɻྫ͑͹ = gmp_strval(gmp_add(PHP_INT_MAX, PHP_INT_MAX));" ?> • ݁Ռ͸ 18446744073709551614 ͱͳΓ·͢

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ුಈখ਺఺ͷܭࢉʹ͍ͭͯ લ ࠲

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ܭࢉํ๏͝ଘ஌ͷํ✋ લ ࠲

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ͪͳΈʹɺࢲ͸ۤखͰ͢ લ ࠲

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͋ͱɺຊฤͰ͸࢖Θͳ͍ͷͰ༨ஊͱͯ͠ ָ͓͠Έ͍ͩ͘͞ લ ࠲

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ුಈখ਺఺ͷܭࢉํ๏ • ුಈখ਺఺ͷܭࢉํ๏Ͱ༗໊ॴ͸Լه͔ͱࢥ͍·͢ɻ • ୯ਫ਼౓ුಈখ਺఺਺ • ഒਫ਼౓ුಈখ਺఺਺ • ͪͳΈʹ͜ΕΒ͸ IEEE754 Ͱఆٛ͞Ε͍ͯΔͷͰৄ͘͠஌Γ ͍ͨํ͸ޚཡ͍ͩ͘͞ɻ • ୯ਫ਼౓ුಈখ਺఺਺͸ 32 Ϗοτ (4 byte) ഒਫ਼౓ුಈখ਺఺਺ ͸ 64 Ϗοτ (8 byte) ͷදݱ෯ͷҧ͍͕͋Γ·͢ɻ ࢀরɿhttps://ja.wikipedia.org/wiki/IEEE_754 ը૾ʹ͍ͭͯɿhttps://creativecommons.org/licenses/by-sa/3.0/

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ුಈখ਺఺ͷܭࢉํ๏ • ୯ਫ਼౓ුಈখ਺఺਺ (float) ͷܭࢉํ๏ • sign ͕ූ߸ͱͳΓ·͢ɻ (sͱஔ͖·͢) • exponent ͕ࢦ਺෦ͱͳΓ·͢ɻ (e ͱஔ͖·͢) • fraction ͕Ծ਺෦ͱͳΓ·͢ɻ (f ͱஔ͖·͢ɻ) ࢀরɿhttps://ja.wikipedia.org/wiki/IEEE_754 ը૾ʹ͍ͭͯɿhttps://creativecommons.org/licenses/by-sa/3.0/ ୯ਫ਼౓ුಈখ਺఺਺ͷܭࢉࣜ͸ = s * f * 2^(e - 127)

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ුಈখ਺఺ͷܭࢉํ๏ • ഒਫ਼౓ුಈখ਺఺਺ (double) ͷܭࢉํ๏ • جຊతʹ͸୯ਫ਼౓ුಈখ਺఺਺ͱมΘΓ·ͤΜɻ • sign ͕ූ߸ͱͳΓ·͢ɻ (sͱஔ͖·͢) • exponent ͕ࢦ਺෦ͱͳΓ·͢ɻ (e ͱஔ͖·͢) • fraction ͕Ծ਺෦ͱͳΓ·͢ɻ (f ͱஔ͖·͢ɻ) ࢀরɿhttps://ja.wikipedia.org/wiki/IEEE_754 ը૾ʹ͍ͭͯɿhttps://creativecommons.org/licenses/by-sa/3.0/ ഒਫ਼౓ුಈখ਺఺਺ͷܭࢉࣜ͸ = s * f * 2^(e - 1023)

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͕͔ͩ͠͠ લ ࠲

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JVM ্ͩͱҧ͏ΜͰ͢ લ ࠲

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ුಈখ਺఺ͷܭࢉํ๏ • JVM্ʹ͓͚Δ୯ਫ਼౓ුಈখ਺఺਺ͷܭࢉํ๏͸Լهͷ௨Γ • JVM্ʹ͓͚Δഒਫ਼౓ුಈখ਺఺਺ͷܭࢉํ๏͸Լهͷ௨Γ • ࢦ਺෦ͷϚεΫ͍ͯ͠Δ஋͕ҟͳΓ·͢ɻ = s * f * 2^(e - 1075) = s * f * 2^(e - 150)

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ΤϯσΟΞϯʹ͍ͭͯ લ ࠲

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ΤϯσΟΞϯͱ͍͏ݴ༿Λ ஌͍ͬͯΔํ✋ લ ࠲

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ΤϯσΟΞϯʹ͍ͭͯ • ΤϯσΟΞϯ͸ओʹ2ͭ͋Γ·͢ • ϦτϧΤϯσΟΞϯ • ϏοάΤϯσΟΞϯ • ϦτϧΤϯσΟΞϯ͸ӈ͔Βࠨ΁ɺϏοάΤϯσΟΞϯ͸ࠨ ͔Βӈ΁ಡΉͱ֮͑Ε͹େৎ෉Ͱ͢ɻ

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ͪͳΈʹϛυϧΤϯσΟΞϯͱ͍͏ͷ΋ ͋ΔΒ͍͠ લ ࠲

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ࢀরɿhttps://ja.wikipedia.org/wiki/ %E3%82%A8%E3%83%B3%E3%83%87%E3%82%A3%E3%82%A2%E3%83%B3

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ࢀরɿhttps://ja.wikipedia.org/wiki/ %E3%82%A8%E3%83%B3%E3%83%87%E3%82%A3%E3%82%A2%E3%83%B3

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มͳ΋ͷͩͦ͏Ͱ͢ લ ࠲

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ϦτϧΤϯσΟΞϯʹ͍ͭͯ લ ࠲

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ϦτϧΤϯσΟΞϯʹ͍ͭͯ • ϦτϧΤϯσΟΞϯͷಈ͖͸ԼهͷΑ͏ʹϝϞϦʹੵ·Εͯ ͍͖·͢ 00 AA BB CC DD Ϩδελ DD CC ϝϞϦ 0xA ΞυϨε 0xB 0xC 0xD 0xE

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ϏοάΤϯσΟΞϯʹ͍ͭͯ લ ࠲

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ϏοάΤϯσΟΞϯʹ͍ͭͯ • ϏοάΤϯσΟΞϯͷಈ͖͸ԼهͷΑ͏ʹϝϞϦʹੵ·Εͯ ͍͖·͢ 00 AA BB CC DD Ϩδελ CC DD ϝϞϦ 0xA ΞυϨε 0xB 0xC 0xD 0xE

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͓͞Β͍ લ ࠲

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͓͞Β͍ •gmp_* ؔ਺Λ֮͑ͯؼΖ͏ •dechex / hexdec / base_convert ؔ਺Λ֮͑ͯ ؼΖ͏ •signed, unsigned ͳ஋ʹ͍֮ͭͯ͑ͯؼΖ͏ •ුಈখ਺఺ͷܭࢉํ๏Λ֮͑ͯؼΖ͏ •ΤϯσΟΞϯʹ͍֮ͭͯ͑ͯؼΖ͏

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લ࠲͸ऴྃͰ͢ લ ࠲

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͋ͳͨ͸஌͍ͬͯΔͩΖ͏͔ ຊ ฤ

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30 ԯͷσόΠεͰ૸ΔϠπͷ͜ͱΛ… ຊ ฤ

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ͦ͏ Java ͷ͜ͱΛ… ຊ ฤ

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ͦ͏ Java ͷ͜ͱΛ… PHP ຊ ฤ

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PHP Ͱ JVM ʹೖ໳͢Δ - ຊฤ - ຊ ฤ PHPerKaigi 2019 2019/03/29 Ί΋Γʔ(@m3m0r7)

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ͩΕʁ Ί΋Γʔ(@m3m0r7) ϫλγϋϐʔΤΠνϐʔνϣοτσΩϧ גࣜձࣾ GameWith ͱ͍͏ձࣾͰಇ͍ͯ·͢ɻ

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PHP ͰόΠφϦϦʔσΟϯά

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΍ΓํΛ͝ଘ஌ͷํ✋

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ͦ΋ͦ΋ɺόΠφϦϦʔσΟϯάͱ͸ʁ

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੺࿮ͷͱ͜ΖΛಡΜͰ͍͘͜ͱͰ͢

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ͦ΋ͦ΋ɺPHP Ͱ JVM Λ ಡΜͰԿָ͕͍͠ͷʁ

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PHP Ͱ JVM ΛಡΜͰԿָ͕͍͠ͷ͔ • ελοΫϚγϯ͕ͲͷΑ͏ʹಈ͍ͯΔ͔ཧղ͢Δ͜ͱ͕Ͱ͖ ͨؾ࣋ͪʹͳΔ • ͨͩ͠ JVM ͸ϩʔΧϧม਺ͷετΞ΍ϩʔυ͕ແݶେʹͰ ͖ΔͨΊ७ਮͳελοΫϚγϯͰ͸ͳ͍ • php ͷதؒίʔυ͕ཧղ͠΍͘͢ͳΔ • vld extension ͷؾ࣋ͪʹͳΕΔ • 30 ԯͷσόΠεͰ૸Δ͜ͱ͕Ͱ͖Δ • ͳΜͳΒ PHP ͕Քಇ͍ͯ͠Δαʔόʔ୆਺෼΋ؚΊΔͱ Java ΑΓ΋͍͢͝ͷͰ͸

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PHP Java

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৑ஊͰ͢

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JVM Λೖ໳͢Δʹ͋ͨͬͯ

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The Java® Virtual Machine Specification ΋ҰॹʹಡΜͰ͍͖·͢

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The Java® Virtual Machine Specification https://docs.oracle.com/javase/specs/jvms/se11/html/index.html

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ͬͦ͘͞όΠφϦϦʔσΟϯά͠·͢

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Java ͷΫϥεϑΝΠϧ͸͜ͷߏ଄

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ಡΈํ

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unsigned int unsigned short object (PHPͩͬͨΒ഑ྻͰOK)

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࣮ࡍʹ PHP ͰಡΜͰ͍͘

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όΠφϦΛಡΉʹ͸ • PHPͷϑΝΠϧؔ਺Λ࢖͏ • fopen ؔ਺ • fread ؔ਺ • fseek ؔ਺ • int ΍ short ͳͲͷ஋Λܭࢉ͢Δ • base_convert ؔ਺ • pack / unpack ؔ਺ (ࠓճ͸͜ΕΛ࢖͍·͢) • ord / chr ؔ਺ • ؾ߹

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unsigned int magic unsigned short minor version unsigned short major version unsigned short constant pool count

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PHP Ͱද͢ͱ

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N ͸ unsigned int Ͱ ϏοάΤϯσΟΞϯ όΠτΦʔμʔ n ͸ unsigned short Ͱ ϏοάΤϯσΟΞϯ όΠτΦʔμʔ cafebabe 0 52 (JDK 8) 29 ͜͜Ͱ͍͏ int (4byte) ΍ short (2byte) ͷαΠζ͸ JVM ্Ͱͷ࿩ʹͳΓ·͢ɻ

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Ͷʁ؆୯Ͱ͠ΐʁ

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औಘͨ͠ constant_pool_count ΑΓ Constant Pool Λऔಘ͠·͢

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੺࿮͕ constant pool

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PHP Ͱද͢ͱ

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଴ͯΑ

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ʁʁʁ ʁʁʁ ʁʁʁ ʁʁʁ

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0x0A ΍ 0x09 ͷ஋ͬͯʁ

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Constant Kind ͱ Tag ͷ͜ͱΛ ͍ࣔͯ͠·͢ unsigned byte

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ͭ·Γ Constant Kind ͷ Tag ͷ ஋ʹΑͬͯॲཧͷ࢓ํ͕ มΘΓ·͢

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ॲཧͷํ๏͕ҟͳΔ • ࠓճ͸ Methodref (0x0A), Fieldref (0x09), String (0x08), Class (0x07), Utf8 (0x01), NameAndType(0x0C) ͷ6ͭͷΈ ରԠɻ Constant Kind Tag Read bytes CONSTANT_Methodref 0x0A 2 byte + 2 byte ( unsigned short + unsigned short ) CONSTANT_Fieldref 0x09 2 byte + 2 byte ( unsigned short + unsigned short ) CONSTANT_String 0x08 2 byte ( unsigned short ) CONSTANT_Class 0x07 2 byte ( unsigned short ) CONSTANT_Utf8 0x01 ( length = 2 byte ) + length bytes ( unsigned short + length bytes ) CONSTANT_NameAndType 0x0C 2 byte + 2 byte ( unsigned byte + unsigned byte )

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͜ΕΛ΋ͱʹͯ͠…

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C ͸ unsigned byte constant pool count ͸ྺ࢙తͳ ཧ༝ʹΑΓ -1 ͢Δ CONSTANT_Methodref CONSTANT_Fieldref CONSTANT_String CONSTANT_Class

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CONSTANT_Utf8 CONSTANT_NameAndType औಘͨ݁͠ՌΛ֨ೲ͢Δ

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࣮ࡍʹग़ྗͯ͠ΈΔͱͲ͏ͳΔ͔ʁ

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ͦΕͬΆ͍ͷ͕ݟ͑ͯ͘Δ

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✌(‘ω'✌ )ࡾ✌('ω')✌ࡾ( ✌’ω’)✌ ָ͍͠ !!!

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Ҿ͖ଓ͖ಡΜͰ͍͖·͢

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unsigned short access flag unsigned short this class unsigned short super class unsigned short interface count unsigned short fields count unsigned short methods count

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PHP Ͱද͢ͱ

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32 (ACC_SUPER) Test java/lang/Object 0 (ΠϯλϑΣʔε͸ఆٛ͞Ε͍ͯͳ͍ͨΊ) 0 (ϑΟʔϧυ͸ఆٛ͞Ε͍ͯͳ͍ͨΊ) 2 ( ͱ main ͕ఆٛ͞Ε͍ͯΔͨΊ)

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ϝιου͕ 2 ͭ͋ΔͷͰ ಡΜͰ͍͖·͢

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unsigned short unsigned short unsigned short unsigned short ϝιουʹ͸ Code Attribute ؚ͕·ΕΔ ʢͦΕҎ֎΋ؚ·Ε·͕͢লུ͠·͢ʣ

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Code Attribute ͷߏ଄͸ʁ

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unsigned short length byte unsigned int Code Attribute ʹ͸ LineNumberTable Attribute ؚ͕·Ε·͢ ʢͦΕҎ֎΋ؚ·Ε·͕͢লུ͠·͢ʣ

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LineNumberTable Attribute ͷߏ଄͸ʁ

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unsigned short unsigned int

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੺࿮͕ϝιουͷ৘ใͱ JVM ͷίʔυͷ৘ใʹͳΓ·͢

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PHP Ͱද͢ͱ

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࣮ࡍͷ JVM ্ͷίʔυ͕֨ೲ͞Ε͍ͯ·͢ Attribute ͷछྨʹΑΓॲཧํ๏͕ҟͳΔͨΊ ෼ذ͍ͯ͠·͢ ࠶ؼ͢Δඞཁ͕͋ΔͷͰؔ਺Խͯ͠·͢

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Attribute ͷछྨʹΑΓॲཧํ๏͕ҟͳΔͨΊ ෼ذ͍ͯ͠·͢ ࠶ؼͰॲཧ͍ͯ͠·͢

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0 (ϝιου΁ͷΞΫηεݖΛ͍ࣔͯ͠·͢) , mainͳͲͷϝιου໊ ()V, ([Ljava/lang/String;)VͳͲͷ ϝιουͷҾ਺ͷ৘ใ Code Attribute ͳͲͷ৘ใ

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࣮ࡍʹग़ྗͯ͠ΈΔͱʁ

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͍͍ײ͡ʹऔΕ͖ͯ·ͨ͠

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ϥετεύʔτ

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࠷ޙ͸ Ϋϥεͷ Attribute Λऔಘ͢Δ

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ClassFile Structure ʹ͸ SourceFile Attribute ͕ ؚ·Ε·͢ ʢͦΕҎ֎΋ؚ·Ε·͕͢লུ͠·͢ʣ

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SourceFile Attribute ͷߏ଄͸ʁ

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unsigned short attribute count unsigned short attribute name index unsigned int attribute length unsigned short sourcefile index

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PHP Ͱද͢ͱ

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readAttributeؔ਺ʹ SourceFile Λ௥Ճ

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ϝιουͱಉ͡Α͏ͳॲཧΛॻ͘

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Ҏ্Ͱ JVM ೖ໳׬ྃͰ͢

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30ԯͷσόΠεͰ૸Δ Java ͷ ؾ࣋ͪʹͳΕ·͔ͨ͠ʁ PHP

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࣍ճ

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PHP Ͱ JVM Λಈ͔͢ χʔϞχοΫͱ͸ Operation Code ͱ͸ iload_0 ͬͯͳΜͩ… tableswitch ͱ lookupswitch ͷҧ͍ Φϖϥϯυ ϩʔΧϧετϨʔδ invokespecial ͱ invokevirtual ಥવͷ ͳͥ PHP Ͱ΍ΔΜͩ…

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ָ͓͠Έʹʂ ※͓࿩͢Δ৔ॴ͸ܾ·ͬͯ·ͤΜ ※͓࿩͢Δ͜ͱࣗମܾ·ͬͯ·ͤΜ

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͜ͷ೔ͷͨΊʹɺେྔͷ࣮૷ͱ ϦϑΝΫλϦϯάΛ͖ͯ͠·ͨ͠

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JAR ͷରԠ, ΞϊςʔγϣϯͷରԠ, ֎෦Ϋϥε ͷରԠ ͳͲͳͲ…

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Before

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Before ʊਓਓਓਓਓਓʊ ʼɹ.DS_Storeɹʻ ʉY^Y^Y^Y^Y^Y^ʉ ʊਓਓਓਓਓਓʊ ʼɹnbprojectɹʻ ʉY^Y^Y^Y^Y^Y^ʉ ʊਓਓਓਓʊ ʼɹ4೥લɹʻ ʉY^Y^Y^Y^ʉ

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20ࡀͷͱ͖ʹ͜Εॻ͍ͨͷ͔…

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After

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After PHPUnit Ͱςετ composer ରԠ PHP CodeSniffer ͰίʔσΟϯάϧʔϧΛ౷Ұ TravisCIͰςετΛ୲อ

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ϞμϯʹͳΓ·ͨ͠

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DEMO (͕࣌ؒ͋Ε͹)

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php-java ͱ͍͏໊લͰ JVM ΤϛϡϨʔλΛެ։͍ͯ͠·͢ ͥͻࣗ͝਎ͷ PC Ͱࢼͯ͠Έ͍ͯͩ͘͞ ͦͯ͠ίϯτϦϏϡʔλʹͳ͍ͬͯͩ͘͞ʂʂ https://github.com/memory-agape/php-java

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ຊ೔ͷαϯϓϧ͸ͪ͜Β https://gist.github.com/memory-agape/ 6d4dce2af4ece6e41293afb4e2caa5e1

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