// 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;
}{"name":"OneFoodie","short_name":"OneFoodie","description":"\u611b\u72ac\u3068\u3044\u3051\u308b\u304a\u3057\u3083\u308c\u3054\u306f\u3093\u30e1\u30c7\u30a3\u30a2","icons":[{"src":"https:\/\/one-foodie.com\/wp-content\/uploads\/2022\/08\/aikon6-e1660695218824.png","sizes":"192x192","type":"image\/png","purpose":"any"},{"src":"https:\/\/one-foodie.com\/wp-content\/uploads\/2022\/08\/aikon6-e1660695218824.png","sizes":"192x192","type":"image\/png","purpose":"maskable"},{"src":"https:\/\/one-foodie.com\/wp-content\/uploads\/2022\/08\/aikon512-e1660695335812.png","sizes":"512x512","type":"image\/png","purpose":"any"},{"src":"https:\/\/one-foodie.com\/wp-content\/uploads\/2022\/08\/aikon512-e1660695335812.png","sizes":"512x512","type":"image\/png","purpose":"maskable"}],"background_color":"#ffffff","theme_color":"#ffffff","display":"standalone","dir":"ltr","orientation":"portrait","start_url":".","scope":"\/","shortcuts":[{"name":"OneFoodie","url":"\/","description":"\u611b\u72ac\u3068\u3044\u3051\u308b\u304a\u3057\u3083\u308c\u3054\u306f\u3093\u30e1\u30c7\u30a3\u30a2","icons":[{"src":"https:\/\/one-foodie.com\/wp-content\/uploads\/2022\/08\/aikon6-e1660695218824.png","sizes":"192x192"}]}]}