{"id":87,"date":"2026-05-29T12:40:50","date_gmt":"2026-05-29T03:40:50","guid":{"rendered":"http:\/\/localhost\/miyasaka\/blog\/?p=87"},"modified":"2026-06-11T09:16:21","modified_gmt":"2026-06-11T00:16:21","slug":"wordpress%e3%81%a7%e3%81%8a%e5%95%8f%e3%81%84%e5%90%88%e3%82%8f%e3%81%9b%e3%83%95%e3%82%a9%e3%83%bc%e3%83%a0%e3%82%92ajax%e5%8c%96%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%80%90%e5%88%9d%e5%bf%83","status":"publish","type":"post","link":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/2026\/05\/29\/wordpress%e3%81%a7%e3%81%8a%e5%95%8f%e3%81%84%e5%90%88%e3%82%8f%e3%81%9b%e3%83%95%e3%82%a9%e3%83%bc%e3%83%a0%e3%82%92ajax%e5%8c%96%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%80%90%e5%88%9d%e5%bf%83\/","title":{"rendered":"WordPress\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3092Ajax\u5316\u3059\u308b\u65b9\u6cd5\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011"},"content":{"rendered":"\n<p>WordPress\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u308b\u3068\u3001\u9001\u4fe1\u6642\u306b\u30da\u30fc\u30b8\u304c\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<br>\u3057\u304b\u3057\u3001Ajax\u3092\u4f7f\u3048\u3070\u30da\u30fc\u30b8\u9077\u79fb\u306a\u3057\u3067\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001UX\u3092\u6539\u5584\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001WordPress\u3067Ajax\u901a\u4fe1\u3092\u5229\u7528\u3057\u305f\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3092\u5b9f\u88c5\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"6000\" height=\"4000\" data-id=\"89\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/tomato.jpg\" alt=\"\" class=\"wp-image-89\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b8c\u6210\u30a4\u30e1\u30fc\u30b8<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u6642\u306b\u30da\u30fc\u30b8\u9077\u79fb\u3057\u306a\u3044<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u3092\u305d\u306e\u5834\u3067\u8868\u793a<\/li>\n\n\n\n<li>\u6210\u529f\u6642\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u8868\u793a<\/li>\n\n\n\n<li>\u7ba1\u7406\u753b\u9762\u306b\u4f9d\u5b58\u3057\u306a\u3044\u72ec\u81ea\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d5\u30a9\u30fc\u30e0HTML\u3092\u4f5c\u6210<\/h2>\n\n\n\n<p>\u307e\u305a\u306f\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre><code>\n&lt;form id=\"contact-form\"&gt;\n    &lt;div&gt;\n        &lt;label&gt;\u540d\u524d&lt;\/label&gt;\n        &lt;input type=\"text\" name=\"username\"&gt;\n    &lt;\/div&gt;\n\n    &lt;div&gt;\n        &lt;label&gt;\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9&lt;\/label&gt;\n        &lt;input type=\"email\" name=\"email\"&gt;\n    &lt;\/div&gt;\n\n    &lt;div&gt;\n        &lt;label&gt;\u304a\u554f\u3044\u5408\u308f\u305b\u5185\u5bb9&lt;\/label&gt;\n        &lt;textarea name=\"message\"&gt;&lt;\/textarea&gt;\n    &lt;\/div&gt;\n\n    &lt;button type=\"submit\"&gt;\u9001\u4fe1&lt;\/button&gt;\n&lt;\/form&gt;\n\n&lt;p id=\"result-message\"&gt;&lt;\/p&gt;\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3264\" height=\"2448\" data-id=\"91\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/banana.jpg\" alt=\"\" class=\"wp-image-91\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">JavaScript\u3067Ajax\u9001\u4fe1<\/h2>\n\n\n\n<p>\u6b21\u306bJavaScript\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre><code class=\"language-js\">const form = document.getElementById('contact-form');\n\nform.addEventListener('submit', async (e) => {\n    e.preventDefault();\n\n    const formData = new FormData(form);\n\n    try {\n        const response = await fetch('\/wp-admin\/admin-ajax.php', {\n            method: 'POST',\n            body: formData\n        });\n\n        const data = await response.json();\n\n        document.getElementById('result-message').textContent = data.message;\n\n    } catch (error) {\n        console.error(error);\n    }\n});<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"6000\" height=\"4000\" data-id=\"102\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/strawberry.jpg\" alt=\"\" class=\"wp-image-102\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">action\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b<\/h2>\n\n\n\n<p>WordPress\u306eAjax\u3067\u306f <code>action<\/code> \u304c\u5fc5\u9808\u3067\u3059\u3002<\/p>\n\n\n\n<pre><code class=\"language-js\">formData.append('action', 'contact_form');<\/code><\/pre>\n\n\n\n<p>\u6700\u7d42\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre><code class=\"language-js\">const form = document.getElementById('contact-form');\n\nform.addEventListener('submit', async (e) => {\n    e.preventDefault();\n\n    const formData = new FormData(form);\n\n    formData.append('action', 'contact_form');\n\n    try {\n        const response = await fetch('\/wp-admin\/admin-ajax.php', {\n            method: 'POST',\n            body: formData\n        });\n\n        const data = await response.json();\n\n        document.getElementById('result-message').textContent = data.message;\n\n    } catch (error) {\n        console.error(error);\n    }\n});<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"6000\" height=\"4000\" data-id=\"98\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/orange.jpg\" alt=\"\" class=\"wp-image-98\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">functions.php\u3067Ajax\u51e6\u7406\u3092\u66f8\u304f<\/h2>\n\n\n\n<p>WordPress\u5074\u3067Ajax\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre><code class=\"language-php\">function contact_form_ajax() {\n\n    $username = $_POST['username'] ?? '';\n    $email = $_POST['email'] ?? '';\n    $message = $_POST['message'] ?? '';\n\n    if (empty($username)) {\n        wp_send_json([\n            'status' => 'error',\n            'message' => '\u540d\u524d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044'\n        ]);\n    }\n\n    if (empty($email)) {\n        wp_send_json([\n            'status' => 'error',\n            'message' => '\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044'\n        ]);\n    }\n\n    wp_send_json([\n        'status' => 'success',\n        'message' => '\u9001\u4fe1\u304c\u5b8c\u4e86\u3057\u307e\u3057\u305f'\n    ]);\n}\n\nadd_action('wp_ajax_contact_form', 'contact_form_ajax');\nadd_action('wp_ajax_nopriv_contact_form', 'contact_form_ajax');<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3082\u91cd\u8981<\/h2>\n\n\n\n<p>Ajax\u5b9f\u88c5\u6642\u306f\u4ee5\u4e0b\u3082\u5fc5\u9808\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">sanitize\u3059\u308b<\/h3>\n\n\n\n<pre><code class=\"language-php\">$username = sanitize_text_field($_POST['username']);\n$email = sanitize_email($_POST['email']);<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">nonce\u30c1\u30a7\u30c3\u30af<\/h3>\n\n\n\n<pre><code class=\"language-php\">check_ajax_referer('contact_nonce', 'nonce');<\/code><\/pre>\n\n\n\n<p>JavaScript\u5074\uff1a<\/p>\n\n\n\n<pre><code class=\"language-js\">formData.append('nonce', contactData.nonce);<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u30cf\u30de\u308a\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">admin-ajax.php \u304c404\u306b\u306a\u308b<\/h3>\n\n\n\n<p>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u66f4\u65b0\u3067\u89e3\u6c7a\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">JSON.parse \u30a8\u30e9\u30fc<\/h3>\n\n\n\n<p>PHP\u306ewarning\u3084notice\u304c\u6df7\u3056\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre><code class=\"language-php\">ini_set('display_errors', 0);<\/code><\/pre>\n\n\n\n<p>\u305f\u3060\u3057\u672c\u756a\u74b0\u5883\u3067\u306f\u9069\u5207\u306a\u30ed\u30b0\u7ba1\u7406\u3092\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"4240\" height=\"2832\" data-id=\"88\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/paint.jpg\" alt=\"\" class=\"wp-image-88\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">REST API\u3068\u306e\u9055\u3044<\/h2>\n\n\n\n<p>\u6700\u8fd1\u306f <code>admin-ajax.php<\/code> \u3088\u308a\u3082REST API\u3092\u5229\u7528\u3059\u308b\u30b1\u30fc\u30b9\u3082\u5897\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6bd4\u8f03<\/th><th>admin-ajax<\/th><th>REST API<\/th><\/tr><\/thead><tbody><tr><td>\u5b66\u7fd2\u30b3\u30b9\u30c8<\/td><td>\u4f4e\u3044<\/td><td>\u3084\u3084\u9ad8\u3044<\/td><\/tr><tr><td>WordPress\u3089\u3057\u3055<\/td><td>\u9ad8\u3044<\/td><td>API\u5bc4\u308a<\/td><\/tr><tr><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/td><td>\u3084\u3084\u91cd\u3044<\/td><td>\u6bd4\u8f03\u7684\u8efd\u3044<\/td><\/tr><tr><td>\u5c06\u6765\u6027<\/td><td>\u666e\u901a<\/td><td>\u9ad8\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5c0f\u898f\u6a21\u30d5\u30a9\u30fc\u30e0\u306a\u3089 <code>admin-ajax.php<\/code> \u3067\u3082\u5341\u5206\u5b9f\u7528\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"4128\" height=\"2322\" data-id=\"103\" src=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-content\/uploads\/2026\/05\/pexels-technology-1283624.jpg\" alt=\"\" class=\"wp-image-103\"\/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>WordPress\u306eAjax\u5316\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30d5\u30a9\u30fc\u30e0\u306eUX\u3092\u5927\u304d\u304f\u6539\u5584\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>admin-ajax.php<\/code> \u3092\u5229\u7528\u3059\u308b<\/li>\n\n\n\n<li><code>action<\/code> \u3092\u5fc5\u305a\u9001\u308b<\/li>\n\n\n\n<li><code>wp_ajax_<\/code> \/ <code>wp_ajax_nopriv_<\/code> \u3092\u8a2d\u5b9a<\/li>\n\n\n\n<li>sanitize \u3068 nonce \u3092\u5fd8\u308c\u306a\u3044<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u4e01\u5be7\u306b\u884c\u3046<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u306b\u72ec\u81ea\u30c6\u30fc\u30de\u958b\u767a\u3067\u306f\u3001Ajax\u5b9f\u88c5\u306f\u304b\u306a\u308a\u983b\u7e41\u306b\u4f7f\u3046\u306e\u3067\u3001\u65e9\u3081\u306b\u6163\u308c\u3066\u304a\u304f\u3068\u958b\u767a\u52b9\u7387\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WordPress\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u308b\u3068\u3001\u9001\u4fe1\u6642\u306b\u30da\u30fc\u30b8\u304c\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001Ajax\u3092\u4f7f\u3048\u3070\u30da\u30fc\u30b8\u9077\u79fb\u306a\u3057\u3067\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001UX\u3092\u6539\u5584\u3067\u304d\u307e\u3059\u3002 \u4eca\u56de\u306f\u3001WordPress\u3067Ajax &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/2026\/05\/29\/wordpress%e3%81%a7%e3%81%8a%e5%95%8f%e3%81%84%e5%90%88%e3%82%8f%e3%81%9b%e3%83%95%e3%82%a9%e3%83%bc%e3%83%a0%e3%82%92ajax%e5%8c%96%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%80%90%e5%88%9d%e5%bf%83\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;WordPress\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3092Ajax\u5316\u3059\u308b\u65b9\u6cd5\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,7],"tags":[12,13,11,6,5],"class_list":["post-87","post","type-post","status-publish","format-standard","hentry","category-code","category-programming","tag-ajax","tag-javascript","tag-wordpress","tag-code","tag-programming"],"_links":{"self":[{"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/posts\/87","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/comments?post=87"}],"version-history":[{"count":10,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/posts\/87\/revisions"}],"predecessor-version":[{"id":911,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/posts\/87\/revisions\/911"}],"wp:attachment":[{"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/media?parent=87"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/categories?post=87"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mm-watchpoint.site\/miyasaka\/blog\/wp-json\/wp\/v2\/tags?post=87"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}