{"id":81,"date":"2025-10-01T09:30:35","date_gmt":"2025-10-01T00:30:35","guid":{"rendered":"https:\/\/devserver.kr\/blog\/?p=81"},"modified":"2025-10-01T09:30:35","modified_gmt":"2025-10-01T00:30:35","slug":"php-%eb%ac%b8%ec%9e%90%ec%97%b4-%ea%b4%80%eb%a0%a8-%ed%95%a8%ec%88%98","status":"publish","type":"post","link":"https:\/\/devserver.kr\/blog\/php\/php-%eb%ac%b8%ec%9e%90%ec%97%b4-%ea%b4%80%eb%a0%a8-%ed%95%a8%ec%88%98\/","title":{"rendered":"PHP \ubb38\uc790\uc5f4 \uad00\ub828 \ud568\uc218"},"content":{"rendered":"\n<div class=\"wp-block-jetpack-markdown\"><h3>\ubb38\uc790\uc5f4\uc744 \ubaa8\ub450 \uc18c\ubb38\uc790\ub85c \ubcc0\uacbd\ud558\ub294 \ubc29\ubc95<\/h3>\n<pre><code>$upper_str = 'ABC';\n$str = strtolower($upper_str);\n<\/code><\/pre>\n<h3>\ubb38\uc790\uc5f4\uc744 \ubaa8\ub450 \ub300\ubb38\uc790\ub85c \ubcc0\uacbd\ud558\ub294 \ubc29\ubc95<\/h3>\n<pre><code>$lower_str = 'abc';\n$str = strtoupper($lower_str);\n<\/code><\/pre>\n<p>strtolower(), strtoupper() \ud568\uc218\ub294 \uc778\uc790\ub85c ASCII \ubb38\uc790\uc5f4\uc744 \ubc1b\uc544\uc57c \uc815\uc0c1\ub3d9\uc791\ud55c\ub2e4.<\/p>\n<p>ASCII \ubb38\uc790\uac00 \uc544\ub2c8\uace0 multibytes \ubb38\uc790\uc5d0 \ub300\uc751\ud558\ub294 \ud568\uc218\ub294 \ud568\uc218\uba85 \uc55e\uc5d0 mb_\uac00 \ubd99\uc5c8\ub2e4.<\/p>\n<h3>Multibytes \ubb38\uc790\uc5f4\uc744 \uc18c\ubb38\uc790\ub85c \ubcc0\uacbd\ud558\ub294 \ud568\uc218<\/h3>\n<pre><code>mb_strtolower()\n<\/code><\/pre>\n<h3>Multibytes \ubb38\uc790\uc5f4\uc744 \ub300\ubb38\uc790\ub85c \ubcc0\uacbd\ud558\ub294 \ud568\uc218<\/h3>\n<pre><code>mb_strtoupper()\n<\/code><\/pre>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-81","post","type-post","status-publish","format-standard","hentry","category-php"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/posts\/81","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":1,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":82,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/posts\/81\/revisions\/82"}],"wp:attachment":[{"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/media?parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/categories?post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devserver.kr\/blog\/wp-json\/wp\/v2\/tags?post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}