php - how to insert form data into a mysql database -


i'm trying insert data that's in form database made. keep getting error when check if data in database:

error code: 1064. have error in sql syntax; check manual corresponds mysql server version right syntax use near 'user_comments' @ line 1

this php: 

<?php $db_connection = mysqli_connect('localhost','root','',"project_online_planner"); if (!$db_connection){     die('failed connect mysql:'.mysql_error()); }else{     echo "it worked"; }  if(isset($_post['insertcomments'])){     $name=$_post['name'];     $comment=$_post['comment'];     mysqli_query($db_connection,"insert user_comments (name, comment) values ($name, $comment)");     print "your information has been added database."; }  ?>

this html:

<div id="uploadcomments">     <form id="insertcomments" name="insertcomments" method="post">         <label for="name">name: </label><input type="text" id="name" name="name"><br/>         <label for="comment">comments: </label><textarea name="comment" id="comment"></textarea>         <input type="submit" value="submit">     </form> </div>

as pervious people have commented should construct "query" separately, makes easier handle , change. additionally when passing variable query need bring them out of string php can process them correctly.

here how suggest structure code:

....

$name=$_post['name']; $comment=$_post['comment'];  $sql="insert user_comments (name, comment)values('{$name}','{$comment}')";  if (!mysqli_query($db_connection,$sql)) {  die('error: ' . mysqli_error($con));  } echo "1 record added";

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