Maybe done?

src/data_types.php

@@ -0,0 +1,101 @@
+<?php
+
+// convert_to_int()
+
+	function convert_to_int($int){
+
+		return intval($int);
+	}
+
+	//$num = convert_to_int('666');
+	//echo convert_to_int('dog');
+	//var_dump($num);
+
+
+// convert_to_float()
+
+	function convert_to_float($float){
+
+		if(floatval($float) != 0){
+			return floatval($float); 
+		} else {
+			return 0.0;
+		}
+	}
+
+	//$float = convert_to_float('foo');
+	//$float = convert_to_float('3.14159PIETOWNANDZBOYS');
+
+	//var_dump($float);
+	//echo $float;
+
+
+//convert_to_string()
+
+	function convert_to_string($str){
+		if(is_array($str)){
+			return implode(", " , $str);
+		} else if(settype($str, 'string')) {
+			return $str;
+		} else {
+			return "";
+		}
+	}
+
+	//$var = convert_to_string(55);
+	//$var = convert_to_string(array('foo', 'bar'));
+
+	//echo $var;
+	//var_dump($var);
+
+
+//convert_to_bool
+
+	function convert_to_bool($boo) {
+		return (bool) $boo;
+	}
+
+	//$bool = convert_to_bool(null);
+	//var_dump($bool);
+
+
+//convert_to_array()
+
+//	function convert_to_array($arrgh) {
+//		if (is_array($arrgh)) {
+//			return($arrgh);
+//		} else if($arrgh != null) {
+//			return array();
+//		} else {
+//			return array();
+//		} 
+//	}
+
+	function convert_to_array($arrgh) {
+		if (is_array($arrgh)) {
+				return $arrgh;
+			} elseif (is_string($arrgh) || is_bool($arrgh) || is_float($arrgh) || is_int($arrgh)) {
+				return array($arrgh);
+	//		} elseif (is_int($arrgh)) {
+	// 			return array_map('intval', str_split($arrgh));
+	 		} else {
+	 			return [];			
+	 	}
+  	}
+
+	$yayarray = convert_to_array("value");
+	var_dump($yayarray);
+
+
+//convert_to_null()
+
+	function convert_to_null($foo) {
+		if ((!$foo) || $foo === 'null') {
+			return null;
+		} else {
+			return $foo;
+		}
+	}
+
+	$bar = convert_to_null("string");
+	var_dump($bar);