Data commit

Task/Happy-numbers/PHP/happy-numbers.php

@@ -0,0 +1,24 @@
+function isHappy($n) {
+    while (1) {
+        $total = 0;
+        while ($n > 0) {
+            $total += pow(($n % 10), 2);
+            $n /= 10;
+        }
+        if ($total == 1)
+            return true;
+        if (array_key_exists($total, $past))
+            return false;
+        $n = $total;
+        $past[$total] = 0;
+    }
+}
+
+$i = $cnt = 0;
+while ($cnt < 8) {
+    if (isHappy($i)) {
+        echo "$i ";
+        $cnt++;
+    }
+    $i++;
+}