MySql not inserting - php

Question

Is not giving me any error, I am already linked with server but I am still unable to get it work.
It's still unable to add message, do you see any errors?
function pridaj_tovar() {
if ($link = spoj_s_db()) {
$sql = "INSERT INTO `Auto-Moto`".
"(`Tovar`, `Kategoria`,`Mesto`, `Cena`, `ID`, `Popis`)".
"VALUES".
"('$_POST['nazov']', '$_POST['kategorie']', '$_POST['mesta']',' $_POST['cena']', NULL,'$_POST['popis']')";
$result = mysql_query($sql, $link);
if ($result) {
// unable to add
echo '<p>inserting was successful.</p>'. "\n";
} else {
// unable to add!
echo '<p class="chyba">Nastala chyba pri pridávaní tovaru.</p>' . "\n";
}
mysql_close($link);
} else {
// NEpodarilo sa spojiť s databázovým serverom!
echo '<p class="chyba">NEpodarilo sa spojiť s databázovým serverom!</p>';
}
}

Answer 1

This is how you should handle field and table names with spaces,dashes (etc) :
$sql = "INSERT INTO `Auto-Moto`".
"(`Tovar`, `Kategoria`,`Mesto`, `Cena`, `ID`, `Popis`)".
"VALUES".
"('Something', 'Something1', 'word', '50', NULL, 'anotherword')";
$sql = "INSERT INTO `Auto-Moto`".
"(`Tovar`, `Kategoria`,`Mesto`, `Cena`, `ID`, `Popis`)".
"VALUES". "
('{$_POST['nazov']}', '{$_POST['kategorie']}', '{$_POST['mesta']}','{$_POST['cena']}',
NULL,'{$_POST['popis']}')";

Answer 2

You have several problems in your way of making query.
Firstly, your table name is quite non standard (Auto-Moto) so you might need to add quotes around it.
Secondly, it is always a good practice to add some space on proper locations so you could change:
"VALUES"
with
" VALUES "
But you need to provide which error you have received and your table structure.

Answer 3

You missed a lot of space in your Query :
Copy this :
$sql = "INSERT INTO Auto-Moto ".
"(Tovar, Kategoria, Mesto, Cena, ID, Popis) ".
"VALUES ".
"('Something', 'Something1', 'word', '50', NULL, 'anotherword')";

Answer 4

If you want to see an error message change this line:
$result = mysql_query($sql, $link);
To this:
$result = mysql_query($sql, $link) or die ("Error in query: $query. " . mysql_error());
But you should really learn to use mysqli_* extensions since mysql_* extensions—such as what you are using—will be depreciated in PHP 5.5. So change that to this:
$result = mysqli_query($sql, $link) or die ("Error in query: $query. " . mysqli_error());
And be sure to change any other mysqli_* extensions you code might have in place, such as in the spoj_s_db() function you are calling as the $link for a DB connection.
Additionally, your $sql has a few formatting errors. Try this instead:
$sql = "INSERT INTO Auto-Moto"
. " (Tovar, Kategoria, Mesto, Cena, ID, Popis)"
. " VALUES"
. " ('Something', 'Something1', 'word', '50', NULL, 'anotherword')"
;
Note the spaces in the query around the . " concatenation strings. In your original query the formatting had no spaces at all. Which would cause MySQL to choke on the query.