{"id":70,"date":"2024-12-16T06:18:29","date_gmt":"2024-12-15T21:18:29","guid":{"rendered":"https:\/\/itexplore.org\/jp\/?p=70"},"modified":"2025-01-25T16:23:35","modified_gmt":"2025-01-25T07:23:35","slug":"substring-from-end-php","status":"publish","type":"post","link":"https:\/\/itexplore.org\/jp\/tips\/substring-from-end-php\/","title":{"rendered":"PHP\u3067\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b"},"content":{"rendered":"\n<p>PHP \u306e <code>mb_substr<\/code> \u95a2\u6570\u3067\u6587\u5b57\u5217\u306e\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u5207\u308a\u51fa\u3059\u306b\u306f\u3001\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u958b\u59cb\u4f4d\u7f6e\u306b  <strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">\u5bfe\u8c61\u6587\u5b57\u5217\u306e\u9577\u3055\uff0d\u90e8\u5206\u6587\u5b57\u5217\u306e\u9577\u3055<\/span><\/strong> \u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>PHP \u306e <code>mb_substr<\/code> \u95a2\u6570\u306f\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u958b\u59cb\u4f4d\u7f6e\u306b\u8ca0\u6570\uff08-1\u306a\u3069\uff09\u3092\u6307\u5b9a\u3057\u3066\u3082\u540c\u69d8\u306e\u52d5\u304d\u3092\u3057\u307e\u3059\u304c\u3001\u4e0a\u8a18\u306e\u65b9\u6cd5\u306f\u958b\u767a\u8a00\u8a9e\u306b\u3088\u3089\u306a\u3044\u8003\u3048\u65b9\u306a\u306e\u3067\u899a\u3048\u3066\u304a\u304f\u3068\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<div class=\"input-field-container source-code-container\">\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * \u6307\u5b9a\u3055\u308c\u305f\u6587\u5b57\u5217\u306e\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u307e\u3059\n * @param string $str \u6587\u5b57\u5217\n * @param int $len \u90e8\u5206\u6587\u5b57\u5217\u306e\u9577\u3055\uff08\u6841\u6570\uff09\n * @return string \u90e8\u5206\u6587\u5b57\u5217\n *\/\nfunction substringFromEnd(string $str, int $len) {\n\treturn mb_substr($str, mb_strlen($str) - $len, $len);\n}\n<\/code><\/pre>\n\n\n\n<a id=\"copy-source-code-PHP-substringFromEnd\" class=\"action-button enable copy-source-code\" title=\"\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-copy\" aria-hidden=\"true\"><\/i><\/a>\n<\/div>\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u691c\u8a3c<\/h2>\n\n\n\n<div id=\"fixed-top-container\">\n<div id=\"fixed-top-container-contents\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-between\">\n<div><span style=\"font-weight:bold\">\u5f15\u6570\u306e\u5165\u529b<\/span>\n<\/div>\n<div class=\"wp-block-buttons is-layout-flex is-content-justification-right  wp-block-buttons-tight-space\">\n<span>\u56fa\u5b9a\u8868\u793a<\/span>\n<label class=\"toggle-button\" for=\"float-fixed-top-container-toggle\" title=\"\u5f15\u6570\u5165\u529b\u6b04\u3092\u56fa\u5b9a\u8868\u793a\u3059\u308b\u5834\u5408\u306f ON \u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\">\n<input type=\"checkbox\" id=\"float-fixed-top-container-toggle\" class=\"settings-to-save\" checked=\"\">\n<span class=\"slider\"><\/span>\n<\/label>\n<a id=\"undo-fixed-top-container\" class=\"risky-link\" title=\"\u5f15\u6570\u5165\u529b\u6b04\u3092\u9589\u3058\u307e\u3059\u3002\"><i class=\"fa-solid fa-xmark\" aria-hidden=\"true\"><\/i><\/a>\n<\/div>\n<\/div>\n<p class=\"border-spacer\" style=\"margin-top: -10px;\"><\/p>\n<div class=\"flex-vertical-align-center-container\">\n<span>substringFromEnd(\"<\/span>\n<div class=\"input-field-container inline-block\" style=\"width: 16rem;\">\n<input type=\"text\" id=\"sentence\" value=\"\" maxlength=\"64\" placeholder=\"\u6587\u5b57\u5217\u3092\u5165\u529b\">\n<a id=\"delete-sentence\" class=\"action-button risky-link no-disable-control\" title=\"\u6587\u5b57\u5217\u3092\u524a\u9664\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-circle-xmark\" aria-hidden=\"true\"><\/i><\/a>\n<\/div>\n<span>\", <\/span>\n<div class=\"input-field-container inline-block\" style=\"width: 8rem;\">\n<input type=\"text\" id=\"sub-sentence-length\" value=\"\" maxlength=\"3\" placeholder=\"\u9577\u3055\u3092\u5165\u529b\">\n<a id=\"delete-sub-sentence-length\" class=\"action-button risky-link no-disable-control\" title=\"\u9577\u3055\u3092\u524a\u9664\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-circle-xmark\" aria-hidden=\"true\"><\/i><\/a>\n<\/div>\n<span>);<\/span>\n<\/div>\n<p class=\"border-spacer\" style=\"margin-top: -10px;\"><\/p>\n<div class=\"wp-block-buttons\"><div class=\"alignright\">\n<p>\u9577\u3055\u306f<span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">\u6841\u6570<\/span>\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div><\/div>\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-between\">\n<div class=\"wp-block-button tooltip-container\"><a id=\"clear-input-result-value\" class=\"wp-block-button__link wp-element-button risky-action-button\" title=\"\u5f15\u6570\u5165\u529b\u6b04\u3068\u691c\u8a3c\u7d50\u679c\u3092\u30af\u30ea\u30a2\u3057\u307e\u3059\u3002\"><i class=\"fa-solid fa-eraser\" aria-hidden=\"true\"><\/i>\u30af\u30ea\u30a2<\/a><\/div>\n<div class=\"wp-block-button\"><a id=\"execute-function\" class=\"wp-block-button__link wp-element-button\" title=\"\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u95a2\u6570\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\"><i class=\"fa-solid fa-bolt\" aria-hidden=\"true\"><\/i>\u5b9f\u884c<\/a><\/div>\n\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"border-spacer\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u691c\u8a3c\u7d50\u679c<\/h3>\n\n\n\n<div id=\"execute-function-result\" class=\"verify-container\"><\/div>\n\n\n\n<p>\u534a\u89d2\u30b9\u30da\u30fc\u30b9\u3068\u5168\u89d2\u30b9\u30da\u30fc\u30b9\u306f\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"border-spacer\"><\/p>\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-between\">\n<div class=\"wp-block-button\"><a id=\"delete-settings\" class=\"wp-block-button__link wp-element-button risky-action-button\" title=\"PHP\u3067\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u306e\u8a2d\u5b9a\u3092 Cookie \u304b\u3089\u524a\u9664\u3057\u307e\u3059\u3002\"><i class=\"fa-solid fa-trash-can\" aria-hidden=\"true\"><\/i>\u8a2d\u5b9a\u3092\u524a\u9664<\/a><\/div>\n<div class=\"wp-block-button\"><a id=\"save-settings\" class=\"wp-block-button__link wp-element-button\" title=\"PHP\u3067\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u306e\u8a2d\u5b9a\u3092 Cookie \u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-floppy-disk\" aria-hidden=\"true\"><\/i>\u8a2d\u5b9a\u3092\u4fdd\u5b58<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u306e mb_substr \u95a2\u6570\u3067\u6587\u5b57\u5217\u306e\u5f8c\u308d\u304b\u3089\u90e8\u5206\u6587\u5b57\u5217\u3092\u5207\u308a\u51fa\u3059\u306b\u306f\u3001\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u958b\u59cb\u4f4d\u7f6e\u306b \u5bfe\u8c61\u6587\u5b57\u5217\u306e\u9577\u3055\uff0d\u90e8\u5206\u6587\u5b57\u5217\u306e\u9577\u3055 \u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":41,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[4],"tags":[9],"class_list":["post-70","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-php"],"_links":{"self":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/70","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/comments?post=70"}],"version-history":[{"count":2,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/70\/revisions"}],"predecessor-version":[{"id":73,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/70\/revisions\/73"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/media\/41"}],"wp:attachment":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/media?parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/categories?post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/tags?post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}