Few code standards. Remove composer vendor folder

solutions/ProjectEuler/104/solve.php

@@ -1,6 +1,6 @@
 <?php
 
-function pandigital($num) {
+function pandigital(int $num): bool {
 	for ($i = 1; $i <= 9; $i++) {
 		if(strpos($n,(string)$i) === false) {
 			return false;

solutions/other/fibonacci.php

@@ -1,6 +1,6 @@
 <?php
 
-function fibonacci($n) {
+function fibonacci(int $n) : int {
     if ($n <= 1)
         return $n;
     return fibonacci($n - 1) + fibonacci($n - 2);

solutions/other/numbergame.php

@@ -6,6 +6,9 @@ $sum = (int)$argv[1];
 $input_numbers = array_slice($argv, 2);
 $operation = ['+','-','*','/'];
 
+if(sizeof($input_numbers) < 2)
+    die();
+
 $best_diff = $sum;
 while($best_diff != 0) {
     shuffle($input_numbers);

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;

solutions/other/reverseWords.php

@@ -0,0 +1,19 @@
+<?php
+function reverseWords(string $str): string
+{
+    $words = explode(' ', $str);
+    $words = array_reverse($words);
+    return implode(' ', $words);
+}
+
+function reverseWords2(string $str): string
+{
+    $words = explode(' ', $str);
+    foreach ($words as &$word) {
+        $word = strrev($word);
+    }
+    return implode(' ', $words);
+}
+
+echo reverseWords("The lazy dog") . PHP_EOL;
+echo reverseWords2("The lazy dog") . PHP_EOL;

solutions/other/reversemultiple9.php

@@ -1,6 +1,6 @@
 <?php
 //Find a three-digit number such that when the digits are reversed and subtracted from the original number, the result is a multiple of 9.
-function numreverse($number) {
+function numreverse(int $number): int {
 
     $numberStr = (string)$number;
     $numberStr = strrev($numberStr);

solutions/other/sequence.php

@@ -0,0 +1,15 @@
+<?php
+
+$num = 44;
+
+for($i=0; $i<20; $i++)
+{
+    $sum = 0;
+    $number = (string)$num;
+    for($c=0; $c < strlen($number);$c++)
+    {
+        $sum +=(int)$number[$c] * (int)$number[$c];
+    }
+    echo $sum . PHP_EOL;
+    $num = $sum;
+}

solutions/other/sum44.php

@@ -1,7 +1,7 @@
 <?php
 //12857 multiplied by 7 gives 90099, and the sum of the digits of 90099 is indeed 27, not 44. Keep trying!
 
-function sumDigits($number) {
+function sumDigits(int $number): int {
     $sum = 0;
     // converting number to string to access digits easily
     $numberStr = (string)$number;

solutions/other/sumdiv20.php

@@ -1,7 +1,7 @@
 <?php
 //Write a function to find the smallest number that is divisible by each of the numbers from 1 to 20.
 
-function sumdiv20() {
+function sumdiv20(): int {
     $i = 20;
     while(true) {
         $i += 20;