php - Implementing captcha to my dynamically generated forms -
i have functions generate articles on page + comments associated them:
function comment_form($id) { // generates comment box form every article on page global $user_data; if (logged_in() === true) { echo " <form method='post' action='' class='comments_form'> <input type='text' name='username' placeholder='your name... *' id='name' value='{$user_data['username']}'> <div class='captcha'>" . create_captcha() . "</div> <textarea name='comments' id='textarea' placeholder='your comment... *' cols='30' rows='6'></textarea> <input type='hidden' name='blog_id' value='$id'> <input type='submit' name='submit' id='post' value='post'> </form> <hr class='artline'>"; } } function list_articles($rows) { if (empty($rows)) { return "there no articles display"; } $previous_blog_id = 0; $content = ''; foreach ($rows $row) { if ($previous_blog_id != $row['content_id']) { // blog id changed if ($previous_blog_id != 0) { // not first section, close out previous section $content .= comment_form($previous_blog_id); } // start new blog section $content .= "<h5 class='posted_by'>posted {$row['posted_by']} on {$row['date']}</h5> <h1 class='content_headers'>{$row['title']}</h1> <article>{$row['content']}</article> <hr class='artline'>"; $previous_blog_id = $row['content_id']; } if (!empty($row['comment_by']) && !empty($row['comments'])) { $content .= "<div class='commented_by'>user: {$row['comment_by']} </div> <div class='comments'>comment: {$row['comments']}</div> <hr class='artline2'>"; } } if ($previous_blog_id != 0) { $content .= comment_form($previous_blog_id); } return $content; } function insert_comments($comments, $comment_by, $blog_id) { include('core/db/db_connection.php'); $comment_by = sanitize($comment_by); $comments = sanitize($comments); $blog_id = (int)$blog_id; $sql = " insert article_comments ( comments, comment_by, blog_id ) values ( '$comments', '$comment_by', '$blog_id' ) "; mysqli_query($dbcon, $sql); } i generate simple math captcha per below:
function generate_captcha($num1, $num2) { // generates 2 random numbers $num1 = (int)$num1; $num2 = (int)$num2; $rand_num_1 = mt_rand($num1, $num2); $rand_num_2 = mt_rand($num1, $num2); $result = $rand_num_1 + $rand_num_2; return $result; } function create_captcha() { // displays captcha on page $num1 = generate_captcha(1, 20); $num2 = generate_captcha(1, 20); echo $num1 . ' + ' . $num2 . ' = '; echo '<input type="text" name="captcha_results" size="2">'; echo '<input type="hidden" name=\'num1\' value=' . $num1 . '; ?>'; echo '<input type="hidden" name=\'num2\' value=' . $num2 . '; ?>'; } as can see, i'm using create_captcha() function comment_form() function because want every comment box have captcha associated it. same way every article has it's own comment box.
the above code displaying captcha field each comment box have, want. - moves comment boxes above content making this:
|-------------------------------------| // comments form article 1 |name: new user | |comment: new comment ! | | | |-------------------------------------| [submit] [captcha field] |-------------------------------------| // comments form article 2 |name: new user | |comment: new comment ! | | | |-------------------------------------| [submit] [captcha field] article_1 title: lorem ipsum content: lorem ipsum dolor sit amet.... -------------------------------------- //comments name: user0 comment: great article! -------------------------------------- name: user1 comment: great article! - 2nd comment -------------------------------------- // end comments ============================================================ article_2 title: lorem ipsum content: lorem ipsum dolor sit amet.... -------------------------------------- //comments name: user0 comment: great article! -------------------------------------- name: user1 comment: great article! - 2nd comment -------------------------------------- // end comments the behavior expecting this:
article_1 title: lorem ipsum content: lorem ipsum dolor sit amet.... -------------------------------------- //comments name: user0 comment: great article! -------------------------------------- name: user1 comment: great article! - 2nd comment -------------------------------------- // end comments |-------------------------------------| // comments form article 1 |name: new user | |comment: new comment ! | | | |-------------------------------------| [submit] [captcha field] ============================================================ article_2 title: lorem ipsum content: lorem ipsum dolor sit amet.... -------------------------------------- //comments name: user0 comment: great article! -------------------------------------- name: user1 comment: great article! - 2nd comment -------------------------------------- // end comments |-------------------------------------| // comments form article 2 |name: new user | |comment: new comment ! | | | |-------------------------------------| [submit] [captcha field] is position in i'm inserting generate_captcha function causes comment boxes float above content?
edit: if return form instead of echoing - works. comment forms placed below correspondent articles:
function comment_form($id) { global $user_data; if (logged_in() === true) { return <<<eot <form method='post' action='' class='comments_form'> <input type='text' name='username' placeholder='your name... *' id='name' value='{$user_data['username']}'> <textarea name='comments' id='textarea' placeholder='your comment... *' cols='30' rows='6'></textarea> <input type='hidden' name='blog_id' value='$id'> <input type='submit' name='submit' id='post' value='post'> </form> <hr class='artline'> eot; however, cannot insert function because of <<<eot had use. how can insert create_captcha function above??
edit 2: not return expected captcha form, seems place comment forms in place...
function comment_form($id, $captcha) { global $user_data; if (logged_in() === true) { return <<<eot <form method='post' action='' class='comments_form'> <input type='text' name='username' placeholder='your name... *' id='name' value='{$user_data['username']}'> <textarea name='comments' id='textarea' placeholder='your comment... *' cols='30' rows='6'></textarea> <input type='hidden' name='blog_id' value='$id'> <input type='submit' name='submit' id='post' value='post'> </form> <hr class='artline'> eot; } } function list_articles($rows) { if(empty($rows)){ return "there no articles display"; } $create_blog_captcha = create_blog_captcha(); $previous_blog_id = 0; $content = ''; foreach($rows $row) { if ($previous_blog_id != $row['content_id']) { // blog id changed if($previous_blog_id != 0) { // not first section, close out previous section $content .= comment_form($previous_blog_id, $create_blog_captcha); } // start new blog section $content .= "<h5 class='posted_by'>posted {$row['posted_by']} on {$row['date']}</h5> <h1 class='content_headers'>{$row['title']}</h1> <article>{$row['content']}</article> <hr class='artline'>"; $previous_blog_id = $row['content_id']; } if (!empty($row['comment_by']) && !empty($row['comments'])) { $content .= "<div class='commented_by'>user: {$row['comment_by']} </div> <div class='comments'>comment: {$row['comments']}</div> <hr class='artline2'>"; } } if($previous_blog_id != 0){ $content .= comment_form($previous_blog_id, $create_blog_captcha); } return $content; } function create_blog_captcha() { $num1 = generate_captcha(1, 20); $num2 = generate_captcha(1, 20); $captchanum = $num1 . ' + ' . $num2 . ' = '; $captchanum .= '<input type="text" name="captcha_results" size="2"> <input type="hidden" name=\'num1\' value=' . $num1 . '> <input type="hidden" name=\'num2\' value=' . $num2 . '>'; return $captchanum; } how can return values of create_blog_captcha? i'm doing wrong...
in function create_captcha() have not closed hidden input fields break entire flow of document.
function create_captcha() { $num1 = generate_captcha(1, 20); $num2 = generate_captcha(1, 20); return $num1 . ' + ' . $num2 . ' = <input type="text" name="captcha_results" size="2"> <input type="hidden" name=\'num1\' value=' . $num1 . ' /> <input type="hidden" name=\'num2\' value=' . $num2 . ' />'; } as noted, function echoed content rather return string other function utputting html.
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