route() and with() in laravel

<?php

  $a = 0;
// True because $a is set
if (isset($a)) {
  echo 
  "Variable 'a' is set.<br>";
}

$b = null;
// False because $b is 
  NULL
if (isset($b)) {
  echo "Variable 'b' is set.";
}
?>
 

Route::get('user/{id}/profile', function ($id) {
    //
})->name('profile');

$url = route('profile', ['id' => 1, 'photos' => 'yes']);

// /user/1/profile?photos=yes

User::select()->whereHas('student', $function($q) {
        $q->where('name', $value)
          ->orWhere('age', $value2);
    });