Nogen der kender nogle gode sider/guider på dansk med php5 og mysqli.

// Her indsætter vi subjects.
if(isset($_POST['nyt_emne'])){

mysqli_query($mysqli,"INSERT INTO `it_nav_subject` (`subject`, `target`, `active`, `alias`, `content`)VALUES('".$subject."','".$target."','".$active."', '".$alias."', '".$content."')");
                       
if(mysqli_query >= true){
$header .= "<p>Opdatere ...</p>";
$header .= "<img src=\"/images/loaders.gif\">";
$header .= "<meta http-equiv=\"REFRESH\" content=\"2;url=oprettenyeemner.php\">";
}
}

$header er i stedet for echo...

<form action='new_page.php' method='post'>
<table border='0' class='weboplysninger_table'>
<tr>
<td>Navngiv siden *</td>
<td><input name='subject' id='subject' size='30' type='text'
onkeyup=\"this.form.alias.value=this.value.replace(/ /g,'_')\"></td>
</tr>
<tr>
<td>Alias *</td>
<td><input name='alias' id='alias' size='30' type='text' onfocus=\"this.form.subject.focus();\"></td>
</tr>
<tr>
<td>Target</td>
<td>
<select name='target' id='target'>
<option value='0'>V&aelig;lg en</option>
<option value='_self'>Self</option>
<option value='_parent'>Parent</option>
<option value='_top'>Top</option>
<option value='_blank'>Blank</option>   
</select>   
</td>
</tr>
<td>Brugerrettigheder</td>
<td>
<select name='active' id='active'>
<option value='0'>V&aelig;lg en</option>
<option value='1'>Synlig for alle</option>
<option value='0'>Skjult for alle</option>
</select>
</td>
</tr>
<td>Indhold:</td>
<td><textarea name=\"content\" id=\"content\"></textarea></td>
<tr>
<td></td>
<td><input type='submit' name='nyt_emne' value='Opret ny side' class='button'></td>
</table>
</form>

Jeg ved ikke hvordan man gør i mysqli..

Men kan det her virke..

$subject = $_POST['subject'];
$target = $_POST['target'];
$active = $_POST['active'];
$alias = $_POST['alias'];
$content = $_POST['content'];

Henter man dem så ikke..

$subject = mysqli_real_escape_string($_POST['subject']);
$target = mysqli_real_escape_string($_POST['target']);
$active = mysqli_real_escape_string($_POST['active']);
$alias = mysqli_real_escape_string($_POST['alias']);
$content = mysqli_real_escape_string($_POST['content']);