php - How to use line break without using html tags? -

this code:

$blogid = mysql_real_escape_string($_get['id']);   if((isset($_post['comment']))&&(!(trim($_post['comment'])==false))&&(isset($_session['userid']))){     $comment = mysql_real_escape_string($_post['comment']);     $querycomment = "insert `comment` (`userid`, `blogid`, `body`) values ( '".$_session['userid']."', '".$blogid."', '".$comment."');";    $rowchat = mysql_query($querymess,$db_con) or die("failed: " . mysql_error() );  }  <form method="post" action="blog.php?id=<?php echo $blogid; ?>" > <textarea name="comment" ></textarea> <input type="submit" value="send" name="submit" /> </form> 

when user comment this:

this world 

then in comments list appears this:

this world 

why doesn't line break works ?

because line breaks saved \n.

you can use php function nl2br($string) before echo'ing string.

<?php     $string = "this\nis\nmy\nworld";     echo nl2br($string); ?>