indents(php): align with C indentation

Fixes https://github.com/nvim-treesitter/nvim-treesitter/issues/2357

queries/php/indents.scm

@@ -10,14 +10,13 @@
 ] @indent
 
 [
-  "("
   ")"
-  "{"
   "}"
-  "["
   "]"
 ] @branch
 
 [
   (comment)
 ] @ignore
+
+(compound_statement "}" @indent_end)

tests/indent/php/example.php

@@ -0,0 +1,12 @@
+<?php
+
+class example
+{
+    public int $variable;
+    // indentation works correctly here
+
+    public function foo()
+    {
+        // indentation works correctly here
+    }
+}

tests/indent/php_spec.lua

@@ -0,0 +1,20 @@
+local Runner = require("tests.indent.common").Runner
+
+local run = Runner:new(it, "tests/indent/php", {
+  tabstop = 4,
+  shiftwidth = 4,
+  softtabstop = 0,
+  expandtab = true,
+})
+
+describe("indent PHP:", function()
+  describe("whole file:", function()
+    run:whole_file(".", {
+      expected_failures = {},
+    })
+  end)
+
+  describe("new line:", function()
+    run:new_line("example.php", { on_line = 11, text = "// new line starts 1 indentation to far", indent = 4 })
+  end)
+end)