hung99hn

Thanks for your reply,
I have tried as follow but error message is not shown. Could you help me to find what i am doing wrong?

[checkbox* fav id:fav exclusive free_text "本サイト" "Twitter" "Facebook" "コンテスト募集サイト" "知人から紹介" "その他"][text fav-etc placeholder "雑誌など"]
<span class="wpcf7-custom-item-error fav fav-etc"></span>

in function.php

function wpcf7_validate_fav_etc( $result , $tag ) {
	$tag = new WPCF7_Shortcode( $tag );
	if ( 'fav ' == $tag->name ) {
		if (
    // 「好きなもの」(fav)が入力されていて、チェックボックスの選択に「その他」が含まれる
    ( isset( $_POST['fav'] ) && in_array( 'その他', $_POST['fav'] ) )
    // 「好きなもの」の「その他」の欄が未入力
    && ( ! isset( $_POST['fav-etc'] ) || 0 == mb_strlen( trim( $_POST['fav-etc'] ) ) )
  ) {
    $result['valid'] = false;
    $result['reason'] = array( 'fav-etc' => ' 項目必須です。');
	
    return $result;
  }
	}
  
 
  return $result;
}
add_filter( 'wpcf7_validate_text', 'wpcf7_validate_fav_etc' , 20,2);

Reference: http://wpcj.net/1130

• This reply was modified 9 years, 6 months ago by hung99hn.

I solved it.