PHPカンファレンス2016 初心者セッション

Transcript

1. PHPΧϯϑΝϨϯε2016 PHPॳ৺ऀηογϣϯ ೔ຊPHPϢʔβձ ༗ݶձࣾΞϦ΢ʔϓ ദԬɹलஉ
2. ΞδΣϯμ ࣗݾ঺հ PHPͷจ๏ ࣮ફฤ ͓·͚
3. ࣗݾ঺հ ༗ݶձࣾΞϦ΢ʔϓ WEBγεςϜ։ൃ ͦΕʹ·ͭΘΔ͢΂ͯ ಛʹՐফ͠Λߦ͏͜ͱ͕ଟ͍Ͱ͢
4. PHPͱ͸
5. PHPͱ͸ PHP is a popular general-purpose scripting language that is especially suited to web development. Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. http://php.net/ΑΓ
6. PHPͱ͸ WEB։ൃʹదͨ͠ݴޠ
7. PHPͷྺ࢙ 1994೥ʹRasmus͕ΦϯϥΠϯͰެ։͍ͯ͠Δܦྺॻ ͷΞΫηεཤྺΛௐ΂ΔͨΊʹ࢖ΘΕ͍ͯ·ͨ͠ ൴͸ͦͷεΫϦϓτ܈ΛʮPersonal Home Page Toolsʯͱ໊෇͚·ͨ͠ɻ http://php.net/manual/ja/history.php.php
8. PHPͷ؀ڥ
9. LAMP LAPP LEMP Linux Apache MySQL PHP Linux Apache Postgre PHP Linux Nginx MariaDB PHP ݺͼํ͸ OS+Web Server+Database+Script
10. ͲΜͳ؀ڥͰ͸͡ΊΔ͔
11. AWS Microsoft Azure Google App Engine IBM Softlayear
12. ϗεςΟϯά Ϩϯλϧαʔό
13. Ծ૝؀ڥ Vmware VirtualBox
14. खܰʹ͸͡ΊΔͳΒ XAMPP MAMP
15. αʔόʔ͍Βͣ cloud9 http://c9.io https://ide.c9.io/kashioka/test
16. ؀ڥ͸ࢥ͍ͷ֎͙͢ʹͰ͖·͢ɻ ͥͻɺࢼͯ͠Έ·͠ΐ͏ɻ
17. PHPͷ֓ཁ
18. PHPͷجຊ PHPͷจ๏͸௚ײతͰ͢ɻ ଞͷݴޠΛ΍͍ͬͯͳ͍ํ͕ށ࿭͍·ͤΜɻ WEBߏஙʹ࠷దͳݴޠͰ͢ɻ ࣌ʹ࣮຿Ͱ࢖͏ʹ͸৭ʑग़͖ͯ·͢ ※ݸਓͷײ૝Ͱ͢
19. PHPλά <?php ?>ɹPHPϞʔυ; HTMLͷλάͷΑ͏ͳΠϝʔδ;
20. <html> <body> <?php echo "͜Μʹͪ͸"; ?> </body> </html> Ұ൪͔ΜͨΜͳαϯϓϧ http://localhost:8888/1st.php
21. ֦ுࢠ ϑΝΠϧ໊.php
22. ߏจ ม਺͸$Ͱ࢝·Δ; จ຤͸;ͰऴΘΔ ܕએݴͳͲ͸ݫີʹߦΘͳͯ͘OK͕ͩޙʑ ໘౗…… ؆୯ͳαϯϓϧΛݟͯΈ·͠ΐ͏
23. <?php $a = '͜Μʹͪ͸'; echo $a;
24. PHP͔ΒHTML΋ग़ྗ
25. <?php echo "<html>"; echo "<body>"; echo "͜Ε͸PHPͰ͢"; echo "</body>"; echo "</html>"; http://localhost:8888/sample0.php
26. ݁߹ͨ͠Γܭࢉͨ͠Γ .(υοτʣΛ࢖ͬͯจࣈྻͷ݁߹ ͕Ͱ͖·͢ɻ ਺஋ͷԋࢉ͸+-*/
27. <?php $a = 1; $b = 2; echo $a + $b; echo '<br>'; echo $a . $b; http://localhost:8888/sample4.php
28. <?php $a = "phpcon"; $b = 2015; echo $a . "/" . $b + 1; http://localhost:8888/sample2.php
29. PHPͷؔ਺ εΫϦϓτݴޠͷؔ਺͸਌͠Έ΍͍͢ ͳΜͱͳؔ͘਺Λ͍֮͑ͯΕ͹OK if foreach strlen htmlspecialchars nl2br mb_convert_encording
30. if ʙ else (endif) ৚݅൑ఆΛߦ͏ ৚݅Λຬͨ͢ຬͨ͞ͳ͍ͷ൑அΛߦ͏
31. <?php if($a) { echo '৚݅Λຬͨ͢'; } else { echo '৚݅Λຬͨ͞ͳ͍'; } http://localhost:8888/if.php
32. <div> <?php if($a): ?> <div id='a'>ຬͨ͢</div> <?php else: ?> <div id=''>ຬͨ͞ͳ͍</div> <?php endif; ?> </div> http://localhost:8888/div.php
33. HTML૊ΈࠐΈܕͷαϯϓϧ Wordpressͷ৔߹ wp-content/themes/twentysixteen/ header.php
34. foreach <?php $numbers = array('2','3','4','5','6'); foreach($numbers as $val) { echo $val; }
35. htmlspecialchars ˍ"'<>ͱ͍ͬͨHTMLͰҙຯ͋ΔจࣈΛhtmlͷදࣔܗ ࣜʹม׵͢Δ = javascriptɺෆਖ਼ͳsql࣮ߦ౳ʹΑΔηΩϡϦςΟʔϦ εΫΛճආ͢Δɻ ೖྗ͞Εͨσʔλ͸ग़ྗ͢Δ௚લʹඞͣ htmlspecialcharsΛ௨͢
36. htmlspecialchars <?php $new ="<a href='test'>Test</a>"; echo $new; <?php $new ="<a href='test'>Test</a>"; echo htmlspecialchars($new,ENT_QUOTES); http://localhost:8888/sample3.php
37. ϑΝΠϧͷಡΈࠐΈ htmlͷྔ࢈ʹ΋ศར
38. require_once <?php require_once('header.html'); require_once('body.html'); require_once('footer.html'); http://localhost:8888/require.php
39. ஋Λऔಘ͢Δ ೖྗϑΥʔϜ͔Βೖྗ͞Εͨ஋ $_POST http://localhost:8888/get.php?id=123456 $_GET
40. ஋ͷऔಘ <?php echo $_GET['id']; echo $_POST['id'];
41. ஋ͷ֬ೝ var_dump()
42. ͜Ε͘Β͍Θ͔Ε͹OK PHPͷΦϯϥΠϯϚχϡΞϧͷॆ࣮౓͕ੌ͍ PHPͷྺ࢙ ݴޠϦϑΝϨϯε
43. ࣮ફฤ ੈքͷਓޱϥϯΩϯάΛදࣔ͢ΔϖʔδΛ࡞ͬͯ
44. σʔλΛ୳͢ ϓϩάϥϜͰѻ͏ͨΊʹ͸CSV΍TSVͱ͍ͬͨσʔλ ͕खؒΛল͚Δ ΤΫηϧσʔλͰ΋CSVʹ͸ग़དྷΔ http://data.worldbank.org/data-catalog/Population- ranking-table
45. CSVΛಡΈࠐΉ ؔ਺໊͕Θ͔Βͳ͚Ε͹ͱΓ͋͑ͣݕࡧ
46. fgetcsvͬͯͷ͕ݟ͔ͭͬͨ http://php.net/manual/ja/function.fgetcsv.php ͕Μ͹ͬͯಡΉͱΘ͔Δ Θ͔Βͳ͚Ε͹αϯϓϧΛ
47. αϯϓϧΛ࢖ͬͯΈΔ ಈ͔ͯ͠ΈΔ http://localhost:8888/1.php csvΛࠩ͠ସ͑ΔͱɺͳΜ͔ग़ͯΔ Θ͔Βͳ͍ͱ͜Ζ͸ௐ΂Δ
48. ௐ΂ͯΈͨΒ fopen — ϑΝΠϧ·ͨ͸ URL ΛΦʔϓϯ͢Δ whileϧʔϓ͸ɺPHPͰ࠷΋؆୯ͳλΠϓͷϧʔϓͰ͢ɻ count — ม਺ʹؚ·ΕΔ͢΂ͯͷཁૉɺ ͋Δ͍͸Φϒ δΣΫτʹؚ·ΕΔԿ͔ͷ਺Λ਺͑Δ fclose — Φʔϓϯ͞ΕͨϑΝΠϧϙΠϯλΛΫϩʔζ͢Δ ͜ΕΛ౿·͑ͯ
49. ͳΜͱͳ͘Θ͔ͬͨ
50. ৭ʑௐ੔ͯ͠ΈΑ͏ ͕࣌ؒͳ͍ͷͰׂѪͰ͢ http://localhost:8888/fgetcsv.php
51. <table border=1> <?php ini_set('display_errors',1); $row = 1; if (($handle = fopen("POP.csv", "r")) !== FALSE) { while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) { if($data[3]) { echo "<tr>"; echo "<td>" . htmlspecialchars($data[3],ENT_QUOTES) ."</td><td>" . htmlspecialchars($data[4],ENT_QUOTES) . "</td>"; echo "</tr>"; } } fclose($handle); } ?> </table>
52. ׬੒ ͳΜͱͳ͘ग़དྷͦ͏ͳؾ͕͠·ͤΜ͔ʁ php.netΛݟͳ͕ΒؤுͬͯΈ·͠ΐ͏
53. ֤஍Ͱ։࠵͞Ε͍ͯΔPHPΧ ϯϑΝϨϯε
54. ࠙਌ձ ଞͷ։ൃऀ΍εϐʔΧʔͱ௚઀࿩͢νϟϯε!
55. ͓קΊॻ੶ ʮ͍ͪ͹Μ΍͍͞͠PHPͷڭຊʯࢲ͕ॻ͍͍ͯ·͢ɻ ͍·ԿΛ࡞͍ͬͯΔͷ͔Λߟ͑Δ ࣗ෼Ͱߟ͑Δྗ͕ͭ͘ ਖ਼ޡදΛ͝ࢀߟʹ͍ͯͩ͘͠͞m(__)m
56. ·ͱΊ PHPͷϚχϡΞϧΛੋඇ׆༻͠·͠ΐ͏ ग़ྗ஋ʹ஫ҙ͠·͠ΐ͏ɻ ೖ໳ॻ͸Α͘બͼ·͠ΐ͏w ා͕ͬͯ͸͍͚·ͤΜ ༐ؾΛ࣋ͬͯɺΠϯλʔωοτ্ʹϓϩάϥϜΛެ։͠ ͯΈ·͠ΐ͏ɻ
57. ͱʹ͔͘ॻ͍ͯΈΔʂ Ҏ্
58. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ΧϯϑΝϨϯεΛָ͠ΜͰ͍ͩ͘͞ʂ
59. PHPॳ৺ऀηογϣϯ ༗ݶձࣾΞϦ΢ʔϓ ദԬɹलஉ twitter,facebook @kashioka