Changing html code with php on different pages

Question

Is changing html h1 tags with php a good idea I m working on this code but I get errors if I don't put isset function but if I include it it doesn't work

<?php
$pagina = isset($_GET['PageName']);
if ($pagina=="post") {
echo "<h1>Posts page</h1>";
}elseif ($pagina=="about") {
echo "<h1>About me</h1>";
}
elseif ($pagina=="contact") {
echo "<h1>Contact me</h1>";
}else{
echo "<h1>First Blog</h1>";
}
?>

Answer 1

The `isset` function returns a boolean state indicating whether a variable value has been initialized (true = initialized, false = not initialized). We use it to avoid referencing a non existing or uninitialized variable. For example, `if (isset($user_name)) // do something`.

In your code, you assign the `isset` return value into variable <$pagina>, but I think you meant to assign $_GET['PageName'] instead. 5o, rather than:

$pagina = isset($_GET['PageName']);

I think you actually meant this:

$pagina = $_GET['PageName'];

P.S. In case you didn't know yet, Code Playground currently doesn't have support for form submission. Checking for $_GET or $_POST is pointless. Unless you're doing this on your own machine/server.

Hth, cmiiw