diff --git a/data_types.php b/data_types.php
new file mode 100644
index 0000000..2f492db
--- /dev/null
+++ b/data_types.php
@@ -0,0 +1,30 @@
+<?php 
+
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1);
+error_reporting(E_ALL);
+
+
+function convert_to_int ($input) {  
+    return (int)$input;
+}
+
+function convert_to_float ($input) {
+    return floatval($input);   
+}
+function convert_to_string($input) {
+    return (string)$input;
+}
+function convert_to_bool($input) {
+    return (bool)$input;
+}
+function convert_to_array($input) {
+    return (array)$input;
+}
+
+function convert_to_null($input) {
+    return NULL;
+}
+
+var_dump (convert_to_null(3333));
+?>
\ No newline at end of file