Code:
<?php include "connection.php"; ?>
<?php
$nome=$_POST['nome'];
$comentario=$_POST['comentario'];
?>
<?php
$insert = "INSERT INTO comentarios_tb nome, comentario"
VALUES('$nome', '$comentario')";
$sql = mysqli_master_query($insert);
echo "<center><h3>Obrigado, seu comentário foi enviado!</center>";
?>Parse error:
Syntax error, unexpected 'VALUES' (T_STRING) in C: \ wamp64 \ www \ comment \ insert comment.php on line 10
Your insert instruction has got a " more in the middle. As it is divided into two lines it becomes more difficult to see.
( and ) is also missing between the fields that are being inserted, nome, comentario .
It should look like this:
$insert = "INSERT INTO comentarios_tb (nome, comentario) VALUES('$nome', '$comentario')";
//------------------------------------------------------^ sem " aqui porque já está ----^ aqui
In the query line, the connection is missing and should be:
$sql = mysqli_master_query($conn, $insert);
//--------------------------^ conexão agora aqui
You should also consider not using mysqli_master_query because it was marked obsolete and was removed in PHP 5.3.0.
On line:
$insert = "INSERT INTO comentarios_tb nome, comentario"
A ; is missing.