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1. Ippei Sumida 2020.02.26 functions.php͔ΒϓϥάΠϯ΁ ϓϥάΠϯΛ࡞ͬͯΈΑ͏
2. ϓϥάΠϯ ςʔϚ functions.php
3. ϓϥάΠϯ޲͖ͳΧελϚΠζ 
 ɹɹςʔϚ޲͖ͳΧελϚΠζ
4. • จࣈͷ૷০ • ը૾ͷ૷০ʢnot Ճ޻ʣ • ϨΠΞ΢τͷௐ੔ • ςʔϚݻ༗ͷΧελϜϒϩοΫ • ςʔϚͷઃఆ • ͦͷςʔϚͷΧελϚΠζ ςʔϚ޲͖ ςʔϚʹґଘ
5. • ؅ཧը໘ͷΧελϚΠζ • αΠτઃఆɾػೳͷ௥Ճɾมߋ • γϣʔτίʔυ • ΧςΰϦ • ΧελϜϒϩοΫ • REST API • ڞ௨ͳද੍ࣔޚ • ͦͷαΠτͷΧελϚΠζ ϓϥάΠϯ޲͖
6. ϓϥάΠϯ ςʔϚ functions.php ςʔϚʹؔΘΔ͜ͱ αΠτʹؔΘΔ͜ͱ
7. ϓϥάΠϯ ςʔϚ functions.php ςʔϚʹؔΘΔ͜ͱ αΠτʹؔΘΔ͜ͱ Ͳͬͪʹॻ͍ͯ΋ಈ͘
8. ͳͥϓϥάΠϯͳͷ͔
9. ςʔϚʹґଘ
10. ΧελϚΠζ ͠Α͏ʂ
11. ΧελϚΠζ ͠Α͏ʂ functions.php ࡞੒ɾमਖ਼ˍΞοϓϩʔυ
12. ΧελϚΠζ ͠Α͏ʂ functions.php
13. ΧελϚΠζ ͠Α͏ʂ functions.php ςʔϚA
14. ςʔϚม͍͑ͨʂ functions.php ςʔϚA
15. ςʔϚม͍͑ͨʂ functions.php ςʔϚB functions.php ςʔϚA
16. ςʔϚม͍͑ͨʂ functions.php ςʔϚB functions.php ςʔϚA ΧελϚΠζ͕ফ͑Δʂ
17. functions.php ίϐʔʂ functions.php ςʔϚB functions.php ίϐʔ
18. functions.php ίϐʔʂ functions.php ςʔϚB functions.php ίϐʔ ςʔϚBݻ༗ͷΧελϚΠζ͕ 
 ফ͑Δʂ
19. ΧελϚΠζ ՕॴҠ২ʂ functions.php ςʔϚB functions.php Ҡ২
20. ΧελϚΠζ ՕॴҠ২ʂ functions.php ςʔϚB functions.php Ҡ২ ΧελϚΠζͨ͠Օॴ͚ͩ 
 Ҡ২Ͱ͖Δࣗ৴͋Δʁ
22. ΧελϚΠζͯ͠ ࡞ͬͨؔ਺
23. ςʔϚͷؔ਺Λ ࢖ͬͯΔ
24. ΧελϚΠζ ͠Α͏ʂ plugin.php ࡞੒ɾमਖ਼ˍΞοϓϩʔυ ϓϥάΠϯC
25. ΧελϚΠζ ͠Α͏ʂ plugin.php ϓϥ΢ΠϯC
26. ςʔϚม͍͑ͨʂ functions.php ςʔϚB functions.php ςʔϚA plugin.php ϓϥ΢ΠϯC αΠτʹӨڹͳ͠
27. functions.php͔Β 
 ϓϥάΠϯ΁
28. ྫɿμογϡϘʔυɹɹ ɹɹ΢ΟδΣοτ
29. wp-content/themes/some-theme/functions.php
30. ϓϥάΠϯ ςʔϚ functions.php μογϡϘʔυͷ΢ΟδΣοτ͸ςʔϚ͕ มΘͬͯ΋දࣔ͠ଓ͚ΔʰαΠτͷΧελϚΠζʱ ςʔϚʹؔΘΔ͜ͱ αΠτʹؔΘΔ͜ͱ
31. Ͱ΋Ή͔͍ͣ͠ΜͰ͠ΐʁ
32. ϓϥάΠϯ࡞੒ɺ࣮͸͜Μͳʹ؆୯ʂ MajiͰKantan 5εςοϓ 1.ϓϥάΠϯσΟϨΫτϦΛ࡞Δ 2.readme.txtΛࢦఆͷϑΥʔϚοτͰͭ͘Δ 3.[ϓϥάΠϯσΟϨΫτϦ໊].phpʹࢦఆͷϑΥʔϚοτͰίϝϯτΛॻ͘ 4.ίʔυΛॻ͘ •functions.phpͷίʔυΛΧοτˍϖʔετ͢Δ 5.ϓϥάΠϯσΟϨΫτϦΛΞοϓϩʔυ͢Δ •ߋ৽͍ͯ͠Ε͹ɺςʔϚͷfunctions.php΋Ξοϓϩʔυ͢Δ
33. 1. ϓϥάΠϯσΟϨΫτϦΛ࡞Δ
34. wp-content plugins dashboard-widget σΟϨΫτϦΛͭ͘Δʂ ऴ ੍࡞ɾஶ࡞ ━━━━━ ⡹⡲⡼
35. •wp-content/plugins/ ʹ͓޷Έͷ໊͓લͰ •খจࣈͱϋΠϑϯͱ਺ࣈͷ૊Έ߹Θ͕ͤແ೉ •ඞͣҰҙʹͳΔΑ͏ʹʂʂ wp-content plugins dashboard-widget σΟϨΫτϦΛͭ͘Δʂ ิ଍
36. 2. readme.txtΛͭ͘Δ
37. ެࣜʹαϯϓϧ͋Δ
38. 3. PHPʹίϝϯτΛॻ͘
39. wp-content plugins dashboard-widget σΟϨΫτϦͱಉҰ໊ͷPHPϑΝΠϧΛ࡞Δ dashboard-widget.php
40. ࠷௿ݶ͸͜Ε͚ͩʂ
41. ެࣜʹαϯϓϧ͋Δ
42. 4. ίʔυΛॻ͘ લʹ
43. PHPίʔσΟϯάن໿ΛकΖ͏ʂ WordPressʹ͸ίʔσΟϯάن໿ʢ= ॻ͖ํʣ͕͋ΓɺͦΕʹैͬͯ ίʔσΟϯά͢Δඞཁ͕͋Γ·͢ɻॻ͖ํ͕౷Ұ͞Εͨίʔυ͸Մಡ ੑ͕ൈ܈ʹ্͕Γ·͢ɻʢ※ 3ϲ݄લͷࣗ෼͸ଞਓʣ ίʔσΟϯάن໿͸HTML, CSS, JavaScript, PHP͝ͱʹܾ·͍ͬͯ· ͢ɻެࣜͷυΩϡϝϯτʹهड़ํ๏͕ެ։͞Ε͍ͯ·͢ɻ
44. ؓ࿩ٳ୊ ※ ݸਓͷײ૝Ͱ͢
45. ϑϨʔϜϫʔΫ ίʔσΟϯάن໿ Laravel PSR-2 Symfony PSR-12 (PSR-2ͷ֦ு) ϕʔε CakePHP PSR-2 Yii PSR-2 ओཁPHPϑϨʔϜϫʔΫͷίʔσΟϯάن໿
46. PSR PHP Standard Recommendation
47. PHP-FIG PHP Framework Interoperability Group
48. PHPʹؔ͢Δʰ͓࡞๏ʱΛܾΊ͍ͯΔάϧʔϓ https://www.php- fi g.org
49. ࠷ۙͷPHP͸΄ͱΜͲɺ 
 PSR-2͔PSR-12
50. WordPress͸ʁ
51. ಠࣗ
54. ͳΜͰ΍ʁ
55. ؓ࿩ٳ୊͓ΘΓ
56. 4. ίʔυΛॻ͘
57. wp-content/themes/some-theme/functions.php
58. wp-content/themes/some-theme/functions.php ʘ Χοτ! ʗ
59. wp-content/plugins/dashboard-widget/dashboard-widget.php
60. ʘ ϖʔετ! ʗ wp-content/plugins/dashboard-widget/dashboard-widget.php
61. ׬ ऴ ੍࡞ɾஶ࡞ ━━━━━ ⡹⡲⡼
62. ิ଍
63. wp-content/plugins/tutorial-widget/tutorial-widget.php ҰҙʹͳΔΑ͏ʹʂ ※઀಄ࣙʹϓϥάΠϯ໊ೖΕΔͱΑ͍ ※Ϋϥεͷϝιου໊͸ͷͧ͘
64. 5. Ξοϓϩʔυ͢Δ લʹ
65. ಈ࡞֬ೝͯ͠Ξοϓϩʔυ͍ͨ͠
66. wp-env @wordpress/env
67. WordPress։ൃ؀ڥΛ
 αΫοͱ࡞Δ΍΂ʔ΍ͭ Hi!
68. http://localhost:8888
 ID: admin
 PW: password ΅͘͸yarn೿ʂ
69. wp-envͷ͕͜͜ਪ͠ϙΠϯτ • ϩʔΧϧʹ͸npmʢyarnʣͱDocker͕͋Ε͹͍͍ • ෳ਺ϓϩδΣΫτ͋ͬͯ΋ɺผ෺ѻ͍Ͱ͖Δ • ʢ࡞੒࣌͸ʣৗʹ·ͬ͞Β • ͍ͭͰ΋͜ΘͤΔ • Dockerͷϩΰ͔Θ͍͍ • yarn΋͔Θ͍͍ υϠΝ!
70. ࣗಈͰΠϯετʔϧࡁΈ ཁΞΫςΟϕʔτ
72. 5. Ξοϓϩʔυ͢Δ
73. wp-content plugins dashboard-widget σΟϨΫτϦΛ·ΔͬͱΞοϓϩʔυʂ dashboard-widget.php
74. wp-content themes some-theme functions.phpΛίϐϖͯͨ͠ΒςʔϚ΋ functions.php
75. ཁΞΫςΟϕʔτ
77. ࢀߟɿ΅͘ͳΒ
79. ͜͏࡞Δ
80. ͕࣌ؒ͋Ε͹આ໌
81. Conclusion • functions.phpʹ͸ςʔϚͷΧελϚΠζɺ
 ϓϥάΠϯʹ͸αΠτͷΧελϚΠζΛهड़͢Δ • ϓϥάΠϯ࡞੒ʹඞཁͳͷ͸ɺͨͬͨͷ5εςοϓ • ίʔσΟϯάن໿ΛकΖ͏ • άϩʔόϧͳ΋ͷʹ͸Ұҙͳ໊લΛ͚ͭΔ • wp-env͸ਆɻςʔϚ࡞੒ʹ΋࢖͑ΔΑ
82. ֯ా Ұฏ Web Developer Freelance @ippey_s ͢Έͩɹ͍ͬ΃͍