不要コード一斉摘発！自動でいらないコードを見つけるアレコレ

PHPカンファレンス福岡2018のLT発表資料です。
以下の資料の改訂版となります。
https://speakerdeck.com/nazonohito51/regasipurodakutodeiranaikodowozi-dong-dejian-tuketakatuta?slide=1

1. ࣗಈͰ͍Βͳ͍ίʔυΛݟ͚ͭΔΞϨίϨ ઒ౡܛ
   
   (.0
   1FQBCP
   *OD
   
   1)1ΧϯϑΝϨϯε෱Ԭ ෆཁίʔυҰ੪ఠൃʂ վ గ ൛
2. IUUQOB[POPIJUPKVHFNKQ ΞϓϦέʔγϣϯΤϯδχΞ ઒ౡܛ
   
   !OB[POPIJUP 4)ࣄۀ෦+6(&.νʔϜ
3. TDIPP͞ΜͰ-BSBWFMͷतۀΛ࡞Γ·ͨ͠
4. ͍Βͳ͍ίʔυ࢒ͬͯ·ͤΜʁ
5. ΊͬͪΌ͋Δ
6. w ೥΋ͷαʔϏε
   w ίϐϖจԽͰඞཁແ͍ͷʹ͍࣋ͬͯͨίʔυͱ͔ͨ͘͞Μ ͋Δ
   w ͻͲ͍΋ͷ͸ϦϙδτϦ͝ͱίϐʔ͍ͯͨ͠ ͏ͪͷ৔߹
7. w ௐࠪίετ͕͔͔Δ
   w HSFQ͢Δͱ༨ܭͳ΋ͷ͕ͻ͔͔ͬΔ
   w ಡΉίʔυ͕ଟ͘ͳΔ
   w मਖ਼ίετ͕͔͔Δ
   w ඞཁͳίʔυ͕ͲΕ͔෼͔Βͳ͍͔Β݁ہશ෦௚͢
   w σϓϩΠίετ͕͔͔Δ ͍Βͳ͍ίʔυ͕࢒͍ͬͯΔͱ
8. ૟আͷ࢓ํΛ͝঺հ͠·͢
9. wຊ൪؀ڥͰ࣮ߦ͞Εͨͷ͸ཁΔίʔυ
   wຊ൪؀ڥͰ࣮ߦ͞Εͳ͍ͷ͸ཁΒͳ͍ίʔυ ͍Βͳ͍ίʔυͷݟ͚ͭํ ຊ൪؀ڥͰಈతղੳ͢Δ
10. wϑΝΠϧϨϕϧͰղੳ
    wϑΝϯΫγϣϯϨϕϧͰղੳ
    wεςʔτϝϯτϨϕϧͰղੳ ࢥ͍͍ͭͨํ๏
11. ϑΝΠϧϨϕϧͰղੳ
12. w HFU@JODMVEFE@pMFT
    ͰSFRVJSF͞ΕͨQIQϑΝΠϧ͕BSSBZ ͰऔΕΔ
    w SFHJTUFS@TIVUEPXO@GVODUJPO
    Ͱऴྃ࣌ʹˢΛอଘ ϑΝΠϧϨϕϧͰղੳ [ array (size=221) 0 => string '/home/vagrant/code/public/index.php' (length=44) 1 => string '/home/vagrant/code/prof_test/web.php' (length=45) 2 => string '/home/vagrant/code/bootstrap/autoload.php' (length=50) 3 => string '/home/vagrant/code/vendor/autoload.php' (length=47) 4 => string '/home/vagrant/code/vendor/composer/autoload_real.php' (length=61) 5 => string '/home/vagrant/code/vendor/composer/ClassLoader.php' (length=59) 6 => string '/home/vagrant/code/vendor/composer/autoload_static.php' (length=63) 7 => string '/home/vagrant/code/vendor/myclabs/deep-copy/src/DeepCopy/ deep_copy.php' (length=79)
13. ϑΝϯΫγϣϯϨϕϧͰղੳ
14. w 1)1ίʔυ͔ΒϑΝϯΫγϣϯݺͼग़͠ΛϑοΫ͢Δ͜ͱ ͸ʢجຊతʹʣͰ͖ͳ͍
    w $ݴޠϨϕϧͷ֦ுʢ&YUFOTJPOʣͳΒՄೳ ϑΝϯΫγϣϯϨϕϧͰղੳ ϓϩϑΝΠϥΛ࢖༻͢Δ
15. [ array (size=1784) 'Illuminate\Support\Collection::__construct==>Illuminate\Support \Collection::getArrayableItems' => array (size=2) 'ct' => int 31 'wt' => int 37 'Illuminate\Routing\Router::addWhereClausesToRoute==>Illuminate\Routing \Route::getAction' => array (size=2) 'ct' => int 44 'wt' => int 129 'Barryvdh\LaravelIdeHelper \IdeHelperServiceProvider::createLocalViewFactory==>Illuminate\View \Factory::addExtension' => array (size=2) 'ct' => int 1 'wt' => int 16 UJEFXBZT@YIQSPGͷղੳ݁Ռ ˡ
    ݺͼग़͠ݩݺͼग़͠ઌ ˡ
    ݺͼग़͠ճ਺ ˡ
    ॲཧ࣌ؒ
16. w 9IQSPG
    1)1
    w UJEFXBZT@YIQSPG
    1)1
    w UJEFXBZT
    ༗ྉ4BB4ʢIUUQTUJEFXBZTDPNʣ
    w CBDLpSF
    ༗ྉ4BB4ʢIUUQTCMBDLpSFJPʣ
    w 9EFCVH
    ϓϩϑΝΠϥҎ֎ʹ΋৭ʑ͍ͭͯ͘Δͷ͕ෆ҆ ϓϩϑΝΠϥͷछྨ
17. ύϑΥʔϚϯε΁ͷӨڹ UJEFXBZT@YIQSPGͷ༗ແʹΑΔॲཧ࣌ؒ ॲཧ࣌ؒʢTFDʣ        ϑΝϯΫγϣϯݺͼग़͠ճ਺ʢճʣ        ϓϩϑΝΠϥ͋Γ ϓϩϑΝΠϥແ͠ -BSBWFMͷ
    ϗʔϜը໘දࣔ   
18. εςʔτϝϯτϨϕϧͰͷղੳ
19. w ຊ൪؀ڥͰίʔυΧόϨοδΛऔΔ
    w QIQECH͸8&#αʔόͱซ༻Ͱ͖ͳ͍ʢʹ9EFCVHҰ୒ʣ
    w ˞ຊ൪؀ڥʹ9EFCVHΛೖΕͯ͠·͏ϦεΫ͸ࠓճ৮Ε· ͤΜ εςʔτϝϯτϨϕϧͰղੳ
20. [ array ( '/home/vagrant/code/vendor/guzzlehttp/promises/src/functions.php' => array ( 21 => 1, 42 => 1, 66 => 1, 92 => 1, 108 => 1, 122 => 1, 147 => 1, 174 => 1, ), '/home/vagrant/code/pwa_test/vendor/laravel/framework/src/Illuminate/Routing/Route.php' => array ( 20 => 1, 22 => 1, 132 => 1, 133 => 1, 134 => 1, 9EFCVHͷίʔυΧόϨοδ݁Ռ ˢ
    ղੳର৅ͷϑΝΠϧ ˡ
    ࣮ߦ͞Εͨߦ൪߸
21. w -BSBWFMͷϗʔϜը໘Ͱܭଌ
    w TFD
    
    TFD
    
    w ຊ౰ʹඞཁͳίʔυ͚ͩΛૂ͍ܸͪͰղੳ͢Δ ύϑΥʔϚϯε΁ͷӨڹ [ xdebug_set_filter( XDEBUG_FILTER_CODE_COVERAGE, XDEBUG_PATH_WHITELIST, [__DIR__ . “/src/”] ); ˡ
    ղੳର৅ΛϗϫΠτϦετͰ੍ݶ
22. ࡟আͨ݁͠Ռ
23. ϑΝΠϧϨϕϧͰ࡟আͨ݁͠Ռ         ϑΝΠϧ਺ɿˠݸ
    ߦ਺ɿˠߦʢ࡟আʣ ϑΝΠϧ਺ɿˠݸ
    ߦ਺ɿˠߦʢ࡟আʣ ϑΝΠϧ਺ɿˠݸ
    ߦ਺ɿˠߦʢ࡟আʣ ϑΝΠϧ਺ɿˠݸ
    ߦ਺ɿˠߦʢ࡟আʣ
24. օ͞Μ΋࡟আͯ͠Έͯ͸ʁ
25. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠