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PHPカンファレンス2016 初心者セッション
Hideo Kashioka
November 03, 2016
Technology
3
8k
PHPカンファレンス2016 初心者セッション
Hideo Kashioka
November 03, 2016
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Transcript
PHPΧϯϑΝϨϯε2016 PHPॳ৺ऀηογϣϯ ຊPHPϢʔβձ ༗ݶձࣾΞϦʔϓ ദԬɹलஉ
ΞδΣϯμ ࣗݾհ PHPͷจ๏ ࣮ફฤ ͓·͚
ࣗݾհ ༗ݶձࣾΞϦʔϓ WEBγεςϜ։ൃ ͦΕʹ·ͭΘΔͯ͢ ಛʹՐফ͠Λߦ͏͜ͱ͕ଟ͍Ͱ͢
PHPͱ
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
PHPͱ WEB։ൃʹదͨ͠ݴޠ
PHPͷྺ࢙ 1994ʹRasmus͕ΦϯϥΠϯͰެ։͍ͯ͠Δܦྺॻ ͷΞΫηεཤྺΛௐΔͨΊʹΘΕ͍ͯ·ͨ͠ ൴ͦͷεΫϦϓτ܈ΛʮPersonal Home Page Toolsʯͱ໊͚·ͨ͠ɻ http://php.net/manual/ja/history.php.php
PHPͷڥ
LAMP LAPP LEMP Linux Apache MySQL PHP Linux Apache Postgre
PHP Linux Nginx MariaDB PHP ݺͼํ OS+Web Server+Database+Script
ͲΜͳڥͰ͡ΊΔ͔
AWS Microsoft Azure Google App Engine IBM Softlayear
ϗεςΟϯά Ϩϯλϧαʔό
Ծڥ Vmware VirtualBox
खܰʹ͡ΊΔͳΒ XAMPP MAMP
αʔόʔ͍Βͣ cloud9 http://c9.io https://ide.c9.io/kashioka/test
ڥࢥ͍ͷ֎͙͢ʹͰ͖·͢ɻ ͥͻɺࢼͯ͠Έ·͠ΐ͏ɻ
PHPͷ֓ཁ
PHPͷجຊ PHPͷจ๏ײతͰ͢ɻ ଞͷݴޠΛ͍ͬͯͳ͍ํ͕ށ͍·ͤΜɻ WEBߏஙʹ࠷దͳݴޠͰ͢ɻ ࣌ʹ࣮Ͱ͏ʹ৭ʑग़͖ͯ·͢ ※ݸਓͷײͰ͢
PHPλά <?php ?>ɹPHPϞʔυ; HTMLͷλάͷΑ͏ͳΠϝʔδ;
<html> <body> <?php echo "͜Μʹͪ"; ?> </body> </html> Ұ൪͔ΜͨΜͳαϯϓϧ http://localhost:8888/1st.php
֦ுࢠ ϑΝΠϧ໊.php
ߏจ ม$Ͱ࢝·Δ; จ;ͰऴΘΔ ܕએݴͳͲݫີʹߦΘͳͯ͘OK͕ͩޙʑ ໘…… ؆୯ͳαϯϓϧΛݟͯΈ·͠ΐ͏
<?php $a = '͜Μʹͪ'; echo $a;
PHP͔ΒHTMLग़ྗ
<?php echo "<html>"; echo "<body>"; echo "͜ΕPHPͰ͢"; echo "</body>"; echo
"</html>"; http://localhost:8888/sample0.php
݁߹ͨ͠Γܭࢉͨ͠Γ .(υοτʣΛͬͯจࣈྻͷ݁߹ ͕Ͱ͖·͢ɻ ͷԋࢉ+-*/
<?php $a = 1; $b = 2; echo $a +
$b; echo '<br>'; echo $a . $b; http://localhost:8888/sample4.php
<?php $a = "phpcon"; $b = 2015; echo $a .
"/" . $b + 1; http://localhost:8888/sample2.php
PHPͷؔ εΫϦϓτݴޠͷؔ͠Έ͍͢ ͳΜͱͳؔ͘Λ͍֮͑ͯΕOK if foreach strlen htmlspecialchars nl2br mb_convert_encording
if ʙ else (endif) ݅ఆΛߦ͏ ݅Λຬͨ͢ຬͨ͞ͳ͍ͷஅΛߦ͏
<?php if($a) { echo '݅Λຬͨ͢'; } else { echo '݅Λຬͨ͞ͳ͍';
} http://localhost:8888/if.php
<div> <?php if($a): ?> <div id='a'>ຬͨ͢</div> <?php else: ?> <div
id=''>ຬͨ͞ͳ͍</div> <?php endif; ?> </div> http://localhost:8888/div.php
HTMLΈࠐΈܕͷαϯϓϧ Wordpressͷ߹ wp-content/themes/twentysixteen/ header.php
foreach <?php $numbers = array('2','3','4','5','6'); foreach($numbers as $val) { echo
$val; }
htmlspecialchars ˍ"'<>ͱ͍ͬͨHTMLͰҙຯ͋ΔจࣈΛhtmlͷදࣔܗ ࣜʹม͢Δ = javascriptɺෆਖ਼ͳsql࣮ߦʹΑΔηΩϡϦςΟʔϦ εΫΛճආ͢Δɻ ೖྗ͞Εͨσʔλग़ྗ͢Δલʹඞͣ htmlspecialcharsΛ௨͢
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
ϑΝΠϧͷಡΈࠐΈ htmlͷྔ࢈ʹศར
require_once <?php require_once('header.html'); require_once('body.html'); require_once('footer.html'); http://localhost:8888/require.php
Λऔಘ͢Δ ೖྗϑΥʔϜ͔Βೖྗ͞Εͨ $_POST http://localhost:8888/get.php?id=123456 $_GET
ͷऔಘ <?php echo $_GET['id']; echo $_POST['id'];
ͷ֬ೝ var_dump()
͜Ε͘Β͍Θ͔ΕOK PHPͷΦϯϥΠϯϚχϡΞϧͷॆ࣮͕ੌ͍ PHPͷྺ࢙ ݴޠϦϑΝϨϯε
࣮ફฤ ੈքͷਓޱϥϯΩϯάΛදࣔ͢ΔϖʔδΛ࡞ͬͯ
σʔλΛ୳͢ ϓϩάϥϜͰѻ͏ͨΊʹCSVTSVͱ͍ͬͨσʔλ ͕खؒΛল͚Δ ΤΫηϧσʔλͰCSVʹग़དྷΔ http://data.worldbank.org/data-catalog/Population- ranking-table
CSVΛಡΈࠐΉ ໊͕ؔΘ͔Βͳ͚ΕͱΓ͋͑ͣݕࡧ
fgetcsvͬͯͷ͕ݟ͔ͭͬͨ http://php.net/manual/ja/function.fgetcsv.php ͕ΜͬͯಡΉͱΘ͔Δ Θ͔Βͳ͚ΕαϯϓϧΛ
αϯϓϧΛͬͯΈΔ ಈ͔ͯ͠ΈΔ http://localhost:8888/1.php csvΛࠩ͠ସ͑ΔͱɺͳΜ͔ग़ͯΔ Θ͔Βͳ͍ͱ͜ΖௐΔ
ௐͯΈͨΒ fopen — ϑΝΠϧ·ͨ URL ΛΦʔϓϯ͢Δ whileϧʔϓɺPHPͰ࠷؆୯ͳλΠϓͷϧʔϓͰ͢ɻ count — มʹؚ·ΕΔͯ͢ͷཁૉɺ
͋Δ͍Φϒ δΣΫτʹؚ·ΕΔԿ͔ͷΛ͑Δ fclose — Φʔϓϯ͞ΕͨϑΝΠϧϙΠϯλΛΫϩʔζ͢Δ ͜ΕΛ౿·͑ͯ
ͳΜͱͳ͘Θ͔ͬͨ
৭ʑௐͯ͠ΈΑ͏ ͕࣌ؒͳ͍ͷͰׂѪͰ͢ http://localhost:8888/fgetcsv.php
<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>
ͳΜͱͳ͘ग़དྷͦ͏ͳؾ͕͠·ͤΜ͔ʁ php.netΛݟͳ͕ΒؤுͬͯΈ·͠ΐ͏
֤Ͱ։࠵͞Ε͍ͯΔPHPΧ ϯϑΝϨϯε
࠙ձ ଞͷ։ൃऀεϐʔΧʔͱ͢νϟϯε!
͓קΊॻ੶ ʮ͍ͪΜ͍͞͠PHPͷڭຊʯࢲ͕ॻ͍͍ͯ·͢ɻ ͍·ԿΛ࡞͍ͬͯΔͷ͔Λߟ͑Δ ࣗͰߟ͑Δྗ͕ͭ͘ ਖ਼ޡදΛ͝ࢀߟʹ͍ͯͩ͘͠͞m(__)m
·ͱΊ PHPͷϚχϡΞϧΛੋඇ׆༻͠·͠ΐ͏ ग़ྗʹҙ͠·͠ΐ͏ɻ ೖॻΑ͘બͼ·͠ΐ͏w ා͕͍͚ͬͯ·ͤΜ ༐ؾΛ࣋ͬͯɺΠϯλʔωοτ্ʹϓϩάϥϜΛެ։͠ ͯΈ·͠ΐ͏ɻ
ͱʹ͔͘ॻ͍ͯΈΔʂ Ҏ্
͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ΧϯϑΝϨϯεΛָ͠ΜͰ͍ͩ͘͞ʂ
PHPॳ৺ऀηογϣϯ ༗ݶձࣾΞϦʔϓ ദԬɹलஉ twitter,facebook @kashioka
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