diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..8357978
Binary files /dev/null and b/.DS_Store differ
diff --git a/src/data_types.php b/src/data_types.php
new file mode 100644
index 0000000..8c13739
--- /dev/null
+++ b/src/data_types.php
@@ -0,0 +1,67 @@
+<?php
+function convert_to_int($input){
+  if (intval($input)){
+      return intval($input);
+  } else {
+      return 0;}
+
+}
+
+function convert_to_float($input){
+  if (floatval($input)){
+    return floatval($input);
+  }else {return 0.0;
+    }
+}
+
+function convert_to_string($input){
+  if (is_array($input)){
+    return implode (', ' , $input);
+  }
+    else {
+      if (strval($input)){
+        return strval($input);
+      }else {
+          return "";
+      }
+    }
+}
+
+function convert_to_bool($input){
+  if (boolval($input)){
+    return boolval($input);
+  }else {
+      return false;
+  }
+}
+
+function convert_to_array($input){
+  if (array($input)) {
+    return array($input);
+  }else {
+      return [];
+  }
+}
+
+function convert_to_null($input){
+  if ($input == 0) { return null;}
+    elseif ($input == 0.0) {return null;}
+    elseif ($input == "" ) {return null;}
+    elseif ($input == false) {return null;}
+    elseif ($input == []) { return null;}
+    elseif ($input == "null") {return null;}
+  else {
+    return $input;
+  }
+}
+
+/*
+var_dump(convert_to_int(7.6));
+var_dump(convert_to_float(4));
+var_dump(convert_to_string([502, beans, 743]));
+var_dump(convert_to_bool(12));
+var_dump(convert_to_array(33));
+var_dump(convert_to_null(8787));
+*/
+
+ ?>