Add type hints and quiet a few other PHPStan complaints

lib/Core.php

@@ -24,5 +24,3 @@ set_exception_handler(function(Throwable $ex): void{
 
 	throw $ex; // Send the exception back to PHP for its usual logging routine.
 });
-
-#$GLOBALS['DbConnection'] = new DbConnection(DATABASE_DEFAULT_DATABASE, DATABASE_DEFAULT_HOST);

lib/Db.php

@@ -1,11 +1,18 @@
 <?
 
 class Db{
-	public static function GetLastInsertedId(){
+	public static function GetLastInsertedId(): int{
 		return $GLOBALS['DbConnection']->GetLastInsertedId();
 	}
 
-	public static function Query(string $query, $args = []){
+	/**
+	* @return Array<mixed>
+	*/
+	public static function Query(string $query, array $args = []): array{
+		if(!isset($GLOBALS['DbConnection'])){
+			$GLOBALS['DbConnection'] = new DbConnection(DATABASE_DEFAULT_DATABASE, DATABASE_DEFAULT_HOST);
+		}
+
 		if(!is_array($args)){
 			$args = [$args];
 		}

lib/DbConnection.php

@@ -67,9 +67,12 @@ class DbConnection{
 	// Inputs:	string 	$sql 		= the SQL query to execute
 	//		array 	$params 	= an array of parameters to bind to the SQL statement
 	// Returns:	a resource record or null on error
-	public function Query(string $sql, array $params = []){
+	/**
+	* @return Array<mixed>
+	*/
+	public function Query(string $sql, array $params = []): array{
 		if(!$this->IsConnected){
-			return;
+			return [];
 		}
 
 		$this->QueryCount++;
@@ -112,7 +115,7 @@ class DbConnection{
 		$done = false;
 		while(!$done){
 			try{
-				$result = $this->ExecuteQuery($handle, $preparedSql, $params);
+				$result = $this->ExecuteQuery($handle);
 				$done = true;
 			}
 			catch(\PDOException $ex){
@@ -148,7 +151,10 @@ class DbConnection{
 		return $result;
 	}
 
-	private function ExecuteQuery($handle, string $preparedSql, array $params){
+	/**
+	* @return Array<mixed>
+	*/
+	private function ExecuteQuery(PDOStatement $handle): array{
 		$handle->execute();
 
 		$result = [];
@@ -171,7 +177,7 @@ class DbConnection{
 	}
 
 	// Gets the last AUTO-INCREMENT id
-	public function GetLastInsertedId(){
+	public function GetLastInsertedId(): ?int{
 		$id = $this->_link->lastInsertId();
 
 		if($id == 0){

lib/OrmBase.php

@@ -3,7 +3,11 @@ use Safe\DateTime;
 use function Safe\substr;
 
 abstract class OrmBase{
-	public static function FillObject($object, $row){
+	final public function __construct(){
+		// Satisfy PHPStan and prevent child classes from having their own constructor
+	}
+
+	public static function FillObject(Object $object, array $row): Object{
 		foreach($row as $property => $value){
 			if(substr($property, strlen($property) - 9) == 'Timestamp'){
 				if($value !== null){
@@ -25,7 +29,7 @@ abstract class OrmBase{
 		return $object;
 	}
 
-	public static function FromRow($row){
+	public static function FromRow(array $row): Object{
 		return self::FillObject(new static(), $row);
 	}
 }

lib/PropertiesBase.php

@@ -2,6 +2,10 @@
 use function Safe\substr;
 
 abstract class PropertiesBase extends OrmBase{
+	/**
+	* @param mixed $var
+	* @return mixed
+	*/
 	public function __get($var){
 		$function = 'Get' . $var;
 
@@ -22,7 +26,11 @@ abstract class PropertiesBase extends OrmBase{
 		}
 	}
 
-	public function __set($var, $val){
+	/**
+	* @param mixed $val
+	* @return mixed
+	*/
+	public function __set(string $var, $val){
 		$function = 'Set' . $var;
 		if(method_exists($this, $function)){
 			$this->$function($val);