// Contact Form7のお問い合せフォーム項目にひらがなが無ければ送信不可
add_filter('wpcf7_validate_textarea', 'wpcf7_validation_textarea_hiragana', 10, 2);
add_filter('wpcf7_validate_textarea*', 'wpcf7_validation_textarea_hiragana', 10, 2);
function wpcf7_validation_textarea_hiragana($result, $tag)
{
  $name = $tag['name'];
  $value = (isset($_POST[$name])) ? (string) $_POST[$name] : '';
  if ($value !== '' && !preg_match('/[ぁ-ん]/u', $value)) {
    $result['valid'] = false;
    $result['reason'] = array($name => 'エラー：こちらの内容は送信できません。');
  }
  return $result;
}{"id":449,"date":"2022-04-27T21:47:05","date_gmt":"2022-04-27T12:47:05","guid":{"rendered":"https:\/\/one-foodie.com\/?page_id=449"},"modified":"2022-04-27T21:47:35","modified_gmt":"2022-04-27T12:47:35","slug":"create-account","status":"publish","type":"page","link":"https:\/\/one-foodie.com\/create-account\/","title":{"rendered":"\u65b0\u898f\u767b\u9332\u30da\u30fc\u30b8"},"content":{"rendered":"<div id=\"wpmem_reg\"><a id=\"register\"><\/a><form name=\"form\" method=\"post\" action=\"https:\/\/one-foodie.com\/create-account\/\" id=\"wpmem_register_form\" class=\"form\"><input type=\"hidden\" id=\"_wpmem_register_nonce\" name=\"_wpmem_register_nonce\" value=\"59c865b5ea\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/wp-json\/wp\/v2\/pages\/449\" \/><fieldset><legend>\u65b0\u898f\u30e6\u30fc\u30b6\u30fc\u767b\u9332<\/legend><label for=\"username\" class=\"text\">\u30e6\u30fc\u30b6\u30fc\u540d<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"username\" type=\"text\" id=\"username\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"first_name\" class=\"text\">\u540d<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"first_name\" type=\"text\" id=\"first_name\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"last_name\" class=\"text\">\u59d3<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"last_name\" type=\"text\" id=\"last_name\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"billing_postcode\" class=\"text\">\u90f5\u4fbf\u756a\u53f7<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"billing_postcode\" type=\"text\" id=\"billing_postcode\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"billing_state\" class=\"text\">\u90fd\u9053\u5e9c\u770c<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"billing_state\" type=\"text\" id=\"billing_state\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"billing_city\" class=\"text\">\u5e02\u533a\u753a\u6751<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"billing_city\" type=\"text\" id=\"billing_city\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"billing_phone\" class=\"text\">Phone<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"billing_phone\" type=\"text\" id=\"billing_phone\" value=\"\" class=\"textbox\" required  \/><\/div><label for=\"user_email\" class=\"text\">\u30e1\u30fc\u30eb<span class=\"req\">*<\/span><\/label><div class=\"div_text\"><input name=\"user_email\" type=\"email\" id=\"user_email\" value=\"\" class=\"textbox\" required  \/><\/div><p><img decoding=\"async\" src=\"https:\/\/one-foodie.com\/wp-content\/siteguard\/590071630.png\" alt=\"CAPTCHA\"><\/p><p><label for=\"siteguard_captcha\">\u4e0a\u306b\u8868\u793a\u3055\u308c\u305f\u6587\u5b57\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/label><br \/><input type=\"text\" name=\"siteguard_captcha\" id=\"siteguard_captcha\" class=\"input\" value=\"\" size=\"10\" aria-required=\"true\" \/><input type=\"hidden\" name=\"siteguard_captcha_prefix\" id=\"siteguard_captcha_prefix\" value=\"590071630\" \/><\/p><script src=\"https:\/\/www.google.com\/recaptcha\/api.js?render=6LcU-6YfAAAAAB26lHg9AjdDEQFcIV_BOUv4HT9Z\"><\/script><script>grecaptcha.ready(function () {grecaptcha.execute('6LcU-6YfAAAAAB26lHg9AjdDEQFcIV_BOUv4HT9Z', { action: 'contact' }).then(function (token) {var recaptchaResponse = document.getElementById('recaptchaResponse');recaptchaResponse.value = token;});});<\/script><input type=\"hidden\" name=\"recaptcha_response\" id=\"recaptchaResponse\"><input name=\"a\" type=\"hidden\" value=\"register\" \/><input name=\"wpmem_reg_page\" type=\"hidden\" value=\"https:\/\/one-foodie.com\/create-account\/\" \/><div class=\"button_div\"><input name=\"submit\" type=\"submit\" value=\"\u767b\u9332\" class=\"buttons\" \/><\/div><div class=\"req-text\"><span class=\"req\">*<\/span>\u5fc5\u9808\u9805\u76ee<\/div><\/fieldset><\/form><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/pages\/449"}],"collection":[{"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/comments?post=449"}],"version-history":[{"count":1,"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/pages\/449\/revisions"}],"predecessor-version":[{"id":450,"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/pages\/449\/revisions\/450"}],"wp:attachment":[{"href":"https:\/\/one-foodie.com\/wp-json\/wp\/v2\/media?parent=449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}