Question

<?php
$whitelist = array('contact', 'about', 'user');
$_GET['page'] = array('contact');
$test = $_GET['page'];
if(isset($test))
{
  if(in_array($whitelist, $test))
  {
    $got = $test;
    echo $got;
  }
  else 
  {
    $got = 'home';
    echo $got;  
  }
}
?>

Now here, I should get the result as ‘contact’ but I’m getting ‘home’. Why is that ?

Answer 1

in_array first argument should be needle (meaning: what you are looking for) and second should be haystack (meaning: where we are looking for).

I think that you reversed those, as well as needl should be string (or other variable type), but not array.

So your script should look like this:

<?php
$whitelist = array('contact', 'about', 'user');
$test = 'contact';
if(isset($test))
{
  if(in_array($test, $whitelist))
  {
    $got = $test;
    echo $got;
  }
  else 
  {
    $got = 'home';
    echo $got;  
  }
}
?>