Few code standards. Remove composer vendor folder

solutions/other/primesum.php

@@ -1,13 +1,13 @@
 <?php
 
-function primeCheck($number){
+function primeCheck(int $number): bool {
     if ($number == 1)
-    return 0;
+    return false;
     for ($i = 2; $i <= $number/2; $i++){
         if ($number % $i == 0)
-            return 0;
+            return false;
     }
-    return 1;
+    return true;
 }
 
 $sum = 0;