wip: break Query into SqlQuery and PhpQuery

Author: g105b

src/Query/PhpQuery.php

@@ -0,0 +1,25 @@
+<?php
+namespace Gt\Database\Query;
+
+use Gt\Database\Connection\Driver;
+
+class PhpQuery extends Query {
+	private string $functionName;
+
+	public function __construct(string $filePathWithFunction, Driver $driver) {
+		[$filePath, $functionName] = explode("::", $filePathWithFunction);
+// TODO: Allow PHP files with :: separators to function names
+		if(!is_file($filePath)) {
+			throw new QueryNotFoundException($filePath);
+		}
+
+		$this->filePath = $filePath;
+		$this->functionName = $functionName;
+		$this->connection = $driver->getConnection();
+	}
+
+	/** @param array<string, mixed>|array<mixed> $bindings */
+	public function getSql(array &$bindings = []):string {
+// TODO: Include similarly to page logic files, with optional namespacing (I think...)
+	}
+}