有効な使い方を正しく理解して実装する PHP8.3の最新機能 / Proper understanding and implementation of effective usage Latest features in PHP 8.3

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©Fusic Co., Ltd. 1 ༗ޮͳ࢖͍ํΛਖ਼͘͠ཧղ࣮ͯ͠૷͢Δ PHP8.3ͷ࠷৽ػೳ 2024.06.22 @seike460 PHPΧϯϑΝϨϯε෱Ԭ2024

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©Fusic Co., Ltd. 2 ਗ਼Ո ࢙࿠ @seike460 AWS Community Builders Serverless ݄ؒPHPΧϯϑΝϨϯε2024 - PHPΧϯϑΝϨϯε๺ւಓ2024 ొஃ (LT) - PHPΧϯϑΝϨϯεؔ੢2024 ొஃ (LT) - PHPerKaigi2024 ొஃ (LT) - PHPΧϯϑΝϨϯεখాݪ2024 ొஃ - PHPΧϯϑΝϨϯε߳઒2024 ొஃ - PHPΧϯϑΝϨϯε෱Ԭ2024 ొஃ Nowʂ ࣗݾ঺հ ͸͡Ίʹ גࣜձࣾFusic ϓϦϯγύϧΤϯδχΞ/ΤόϯδΣϦετ

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©Fusic Co., Ltd. 3 CONTENTS ໨࣍ 1. PHP8.3ͷϦϦʔεʹ͍ͭͯৼΓฦΔ 2. PHP8.3ͷ৽ػೳϦετΞοϓ 3. ֤ػೳͷઆ໌ͱར༻ྫ 4. PHP8.4Λ೷͘ 5. ·ͱΊ

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©Fusic Co., Ltd. 4 PHP8.3ͷϦϦʔεʹ͍ͭͯৼΓฦΔ 1

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©Fusic Co., Ltd. 5 PHP8.3ͷϦϦʔεʹ͍ͭͯৼΓฦΔ - PHP 8.3.0 - 2023೥11݄23೔ - PHP 8.3.1 - 2023೥12݄21೔ - PHP 8.3.2 - 2024೥1݄18೔ - PHP 8.3.3 - 2024೥2݄15೔ - PHP 8.3.4 - 2024೥3݄14೔ - PHP 8.3.6ɹɹɹɹ ※PHP8.3.5͸ReleasePage͔Β࡟আࡁ - 2024೥4݄11೔ - PHP 8.3.7 - 2024೥5݄9೔

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©Fusic Co., Ltd. 6 PHP8.3.5͸…? PHP8.3.5͕ͳ͔ͬͨΜͰ͢ΑͶ ͬͯ࿩Λ@tadsanʹͨ͠Β ͋ͬͱ͍͏ؒʹௐ΂ͯ͘Ε·ͨ͠ʂ ■೔ຊޠ༁ PHP ։ൃνʔϜ͸PHP 8.3.6 ͷଈ࣌ϦϦʔεΛΞφ΢ϯε͠·͢ ͜Ε͸CVE-2024-1874 ʹ ରॲͨ͠ηΩϡϦςΟϦϦʔεͰ͢

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©Fusic Co., Ltd. 7 PHP8.3ͷαϙʔτظݶ - Active Support - 2025೥11݄23೔ ࠓ೔͔Β520೔ - Security Support - 2026೥11݄23೔ ࠓ೔͔Β885೔

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©Fusic Co., Ltd. 8 ͳͥ৽͍͠ػೳΛཧղ͢Δͷ͔ ਖ਼͘͠ػೳΛཧղ࣮ͯ͠૷͢ΔͱҎԼͷΑ͏ͳԸܙ͕ - ҆શੑͷ޲্ - όάͷࠞೖ΍ηΩϡϦςΟϗʔϧͷϦεΫͷ௿ݮʹܨ͕Δ - ίʔυදݱྗͷ޲্ - ίʔυͷҙਤΛ໌֬ʹͯ͠ՄಡੑΛ޲্ͤ͞Δࣄ͕Մೳ - ։ൃޮ཰ͷ޲্ - ReadonlyϓϩύςΟ΍Attributeͷ࢖༻ʹΑΓόάൃੜ཰ͷ཈੍ ίʔυʹҙࢥΛຒΊࠐΜͰɺίʔυΛ௨͠ඇಉظίϛϡχέʔγϣϯ͕Մೳ ݴޠදݱ͕๛͔ʹ͢Δ͜ͱͰೝ஌ෛՙΛԼ͍͖͛ͯ·͠ΐ͏

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©Fusic Co., Ltd. 9 ৽ػೳͷϦετΞοϓ 2

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©Fusic Co., Ltd. 10 ৽ػೳͷϦετΞοϓ - ػೳͱͯ͠ͷ௥Ճ - Ϋϥεఆ਺ͷܕ෇͚ - Ϋϥεఆ਺ͷจࣈྻࢦఆ - Attribute#[\Override]ͷ௥Ճ - ಡΈऔΓઐ༻ϓϩύςΟͷσΟʔϓΫϩʔϯ - ίϚϯυϥΠϯLinterͷෳ਺ϑΝΠϧࢦఆ - ؔ਺ɺϝιουͷ௥Ճ - json_validate - Randomizer::getBytesFromString() - Randomizer::getFloat() - Randomizer::nextFloat() https://www.php.net/releases/8.3/ja.php

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©Fusic Co., Ltd. 11 ৽ػೳͷϦετΞοϓ - ػೳͱͯ͠ͷ௥Ճ - Ϋϥεఆ਺ͷܕ෇͚ - Ϋϥεఆ਺ͷจࣈྻࢦఆ - Attribute#[\Override]ͷ௥Ճ - ಡΈऔΓઐ༻ϓϩύςΟͷσΟʔϓΫϩʔϯ https://www.php.net/releases/8.3/ja.php

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©Fusic Co., Ltd. 12 ֤ػೳͷઆ໌ͱར༻ྫ 3

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©Fusic Co., Ltd. 13 Ϋϥεఆ਺ͷܕ෇͚ ʲbeforeʳ

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©Fusic Co., Ltd. 14 Ϋϥεఆ਺ͷܕ෇͚ ʲbeforeʳ CacheΫϥεʹ CacheConfigΫϥε͕ઃఆ஋Λ౉͢ ֦ுͨ͠ઃఆ஋Λ౉ͦ͏ͱͨ͠ࡍʹ ఆ਺ͷܕ෇͚Λߦ͍ͬͯͳ͍ͨΊ ҙਤͤ͵ܕͷఆ਺Λઃఆ όάͷൃੜΛڐ༰͢Δࣄʹ

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©Fusic Co., Ltd. 15 Ϋϥεఆ਺ͷܕ෇͚ ʲafterʳ

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©Fusic Co., Ltd. 16 Ϋϥεఆ਺ͷܕ෇͚ ʲafterʳ ܕΛࢦఆ͢Δࣄ͕Մೳʹ ܕͷෆҰகʹΑΔόάΛ๷ࢭ ίʔυͷ৴པੑ޲্ʹܨ͕Δ ܕ͕໌ࣔ͞Ε͍ͯΔͨΊɺ ίʔυΛಡΉ։ൃऀ͕ҙਤΛ ཧղ͠΍͘͢ೝ஌ෛՙΛԼ͛Δࣄʹ

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©Fusic Co., Ltd. 17 Ϋϥεఆ਺ͷจࣈྻࢦఆ ʲbeforeʳ

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©Fusic Co., Ltd. 18 Ϋϥεఆ਺ͷจࣈྻࢦఆ ʲbeforeʳ ఆ਺໊Λจࣈྻͱͯ͠ߏங -> ఆ਺Λࢀর͢Δؔ਺Λར༻ ؔ਺ʹଘࡏΛ஌͍ͬͯΔඞཁ͕͋Γɺ ௚ײతͰ͸ͳ͍ͷͰೝ஌ෛՙ͕͔͔Δ

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©Fusic Co., Ltd. 19 Ϋϥεఆ਺ͷจࣈྻࢦఆ ʲafterʳ

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©Fusic Co., Ltd. 20 Ϋϥεఆ਺ͷจࣈྻࢦఆ ʲafterʳ ఆ਺Λจࣈྻࢦఆ͕Մೳʹ ΋ͱ΋ͱҎԼ͕ग़དྷ͍ͯͨͷͰ ΑΓࣗવͳܗʹͳͬͨͱߟ͑·͢ - ม਺ͷಈతࢀর - ΦϒδΣΫτϓϩύςΟͷಈతࢀর - ੩తϓϩύςΟͷಈతࢀর

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©Fusic Co., Ltd. 21 Attribute#[\Override]ͷ௥Ճ ʲbeforeʳ

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©Fusic Co., Ltd. 22 Attribute#[\Override]ͷ௥Ճ ʲbeforeʳ ϝιου໊ͷλΠϓϛεͳͲʹΑΓ ҙਤͨ͠ΦʔόʔϥΠυ͕ࣦഊ͠ɺ ҙਤ͠ͳ͍ಈ࡞ͱͳΔ͜ͱ͕͋Δ ࠨͷίʔυͷ৔߹ɺλΠϙʹΑΓ CacheΫϥεΛ֦ுͯ͠ར༻͍͕ͨ͠ ਌ଆͷBaseCacheͷsetCacheLifetime ͕࠾༻͞Εͯ͠·͍ɺόάͷݪҼʹ

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©Fusic Co., Ltd. 23 Attribute#[\Override]ͷ௥Ճ ʲafterʳ

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©Fusic Co., Ltd. 24 Attribute#[\Override]ͷ௥Ճ ʲafterʳ #[\Override]ͱ͍͏Attribute͕௥Ճ ਌Class΍interfaceʹಉ͡Method͕ ఆٛ͞Ε͍ͯͳ͍৔߹Τϥʔ͕ൃੜ Ҿ਺΍໭Γ஋͕ؒҧ͍ͬͯΔ৔߹΍ ݩͷϝιου͕มߋ͞Εͨ৔߹΋༗ޮ Fatal error: ExtendedCache::setCatLifetime() has #[\Override] attribute, but no matching parent method exists

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©Fusic Co., Ltd. 25 ಡΈऔΓઐ༻ϓϩύςΟͷσΟʔϓΫϩʔϯʲbeforeʳ

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©Fusic Co., Ltd. 26 ಡΈऔΓઐ༻ϓϩύςΟͷσΟʔϓΫϩʔϯʲbeforeʳ readonly͸ෆมੑΛอͭͨΊʹ ඇৗʹ༗༻ͳػೳ ࠨͷ৔߹͸ΫϥεΦϒδΣΫτੜ੒ -> Ωϟογϡੜ੒ͱ͍͏ߟ͑ ઃఆ஋ΛҾ͖ܧ͙ҝclone͕ͨ͠ ݁ՌΩϟογϡੜ੒࣌ࠁ΋Ҿ͖ܧ͗

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©Fusic Co., Ltd. 28 ಡΈऔΓઐ༻ϓϩύςΟͷσΟʔϓΫϩʔϯʲafterʳ cloneͷ࣌͸__clone಺ͰͷΈ ReadonlyϓϩύςΟॳظԽՄೳ Clone࣌ʹΩϟογϡੜ੒࣌ࠁΛ ࠶ॳظԽ͢Δ͜ͱͰ Cloneݩͱ͸ผ࣌ࠁʹ͢Δ͜ͱʹ੒ޭ

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©Fusic Co., Ltd. 32 ϓϩύςΟϑοΫ __get ϝιου ϓϩύςΟͷಡΈऔΓ࣌ʹݺͼग़͞ΕΔ __set ϝιου ϓϩύςΟͷॻ͖ࠐΈ࣌ʹݺͼग़͞ΕΔ __isset ϝιου isset ؔ਺΍ empty ؔ਺Ͱ ϓϩύςΟͷଘࡏ֬ೝ࣌ʹݺͼग़͞ΕΔ

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©Fusic Co., Ltd. 35 ΑΓޮ཰తʹɺΑΓҙਤతʹίʔυΛॻͨ͘Ίʹ PHPͷ৽͍͠ػೳΛֶͼɺ࣮૷ʹऔΓೖΕΔ͜ͱ͸඼࣭޲্ʹܨ͕Γ·͢ ޮՌ͸ͦΕ͚ͩͰ͸ͳ͘ίʔυΛ௨ͨ͡දݱ͕޿͕Δ͜ͱͰ ಈ࡞Ҏ্ͷ৘ใ఻ୡ͕ՄೳʹͳΓνʔϜͰͷίʔσΟϯάޮ཰͕޲্ ৽͍͠ػೳΛ͍ͪૣ͘஌Γɺར༻͢Δ͜ͱ͸ະདྷ΁ͷ౤ࢿʹ

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©Fusic Co., Ltd. 37 ·ͱΊ PHP8.3͸2026೥·Ͱར༻͠·͢ɻ͔ͬ͠Γ޲͖߹͍·͠ΐ͏ Point 01 ܕ΍AttributeͰίʔυकΔͱ͍͏੔උ͕ਐΜͰ͓Γɺࣗ෼ͨͪʹͯ੔උ͢ΔࣄΛબ୒Ͱ͖Δ Point 02 ࠓճ௥Ճ͞Εͨؔ਺Ҏ֎ͷ΋ͷ΋͋Γ·͢ʂͥͻChangeLogΛ௥ͬͯΈ·͠ΐ͏ʂ Point 03 ػೳͱͯ͠΋ɺίʔυӽ͠ͷҙࢥ఻ୡͷखஈͱͯ͠΋৽͍͠ػೳΛֶͿ͜ͱ͸༗༻ɺͥͻ࢖͍·͠ΐ͏ Point 04