I am trying to write a peace of code that will change the title of the page based on what is in the url query...
?page_id=62&action=register
so
if(action='register'){
do this
}else{
do this
}
how would I write this? I have never dealt with this before
if(isset($_GET['action']) AND $_GET['action'] == "register")
{
// your code
}
Access URL parameters using $_GET:
$page_id = (int)$_GET['page_id'];
$action = htmlspecialchars($_GET['action']);
if($action == 'register') {
echo 'action: '. $action .', page_id: '. $page_id;
}
Read more about GET & POST here. If you want to check if those variables are set use isset e.g. isset($_GET['page_id']).
Be careful though, it's easy to create range of vulnerabilities this way, escape/validate those variables (e.g. htmlspecialchars used it my code).
To read out the "action" you need the $_GET variable. You can use it with $_GET['action'].
You should ever use isset to ask if the variable is set or not. With this you can prevent errors.
if(isset($_GET['action']) && $_GET['action'] == 'register'){
do this
}else{
do this
}
Another example: when you ask if the action is set and after that you can ask if action == register or action == login or whatever
if(isset($_GET['action'])){
switch($_GET['action']) {
case 'register':
//do this
break;
case 'login':
//do this
break;
}
}
Something like this:
$action = $_GET['action'];
if ($action == "register") {
echo("<title>Register</title>");
}
placed in between your and tags in your php script
Try something like:
$title = (isset($_GET['action']) && $_GET['action'] == 'register') ? 'Register' : 'Login';
And in your HTML:
<title><?=$title?></title>
